{ "schema_version": 1, "dataset": "home-energy/gas-vs-electric-dryer", "title": "Gas vs electric dryer: cost per load by state", "page_url": "https://infohelper.net/home-energy/gas-vs-electric-dryer", "license": "CC BY 4.0", "cite": "Cite the page: https://infohelper.net/home-energy/gas-vs-electric-dryer", "license_note": "The computed tables are ours, under CC BY 4.0. The underlying EIA and ENERGY STAR data are works of the US government.", "generated_at": "2026-10-13T22:46:33Z", "data_changed_at": "2026-10-13", "content_hash": "sha256:32ab119ec6eefff0e1ec7d3fb62f1cfda0954b5ae6b9d069f0b35559356098a6", "changes": [ { "date": "2026-10-13", "text": "First published with prices for the 12 months to Jul 2026." } ], "run": { "suspicious": false, "forced": false, "findings": [] }, "sources": [ { "id": "eia-bulk-elec", "publisher": "U.S. Energy Information Administration", "name": "EIA bulk file ELEC: electricity (Forms EIA-861M / EIA-861)", "url": "https://www.eia.gov/opendata/bulk/ELEC.zip", "page_url": "https://www.eia.gov/electricity/data/browser/", "last_updated": "2026-09-23T17:01:12-04:00", "fetched_at": "2026-10-13T22:45:58Z", "used_for": "residential electricity revenue, sales and price by state, monthly" }, { "id": "eia-bulk-ng", "publisher": "U.S. Energy Information Administration", "name": "EIA bulk file NG: natural gas (Forms EIA-857 / EIA-176)", "url": "https://www.eia.gov/opendata/bulk/NG.zip", "page_url": "https://www.eia.gov/dnav/ng/ng_pri_sum_a_EPG0_PRS_DMcf_m.htm", "last_updated": "2026-10-08T15:05:12-04:00", "fetched_at": "2026-10-13T22:46:01Z", "used_for": "residential natural gas price and consumption by state, monthly and annual; heat content; number of residential consumers" }, { "id": "eia-bulk-pet", "publisher": "U.S. Energy Information Administration", "name": "EIA bulk file PET: petroleum (weekly heating oil and propane prices)", "url": "https://www.eia.gov/opendata/bulk/PET.zip", "page_url": "https://www.eia.gov/petroleum/heatingoilpropane/", "last_updated": "2026-10-07T17:59:25-04:00", "fetched_at": "2026-10-13T22:46:02Z", "used_for": "residential propane and heating oil price by state, weekly, October–March" }, { "id": "energy-star-t9u7-4d2j", "publisher": "ENERGY STAR (U.S. EPA)", "name": "ENERGY STAR Certified Residential Clothes Dryers", "url": "https://data.energystar.gov/d/t9u7-4d2j", "page_url": "https://data.energystar.gov/d/t9u7-4d2j", "last_updated": "2026-10-13", "fetched_at": "2026-10-13T22:46:40Z", "used_for": "efficiency of the certified models" } ], "formula_version": "dryer/1", "prices_formula_version": "home-energy-prices/1", "period": { "label": "12 months to Jul 2026", "electricity": { "start": "2025-08", "end": "2026-07", "label": "12 months to Jul 2026" }, "gas": { "start": "2025-08", "end": "2026-07", "label": "12 months to Jul 2026" }, "gas_regression": { "start": "2023-08", "end": "2026-07", "label": "36 months to Jul 2026" }, "winter": { "start": "2025-11", "end": "2026-03", "label": "Nov 2025–Mar 2026" }, "heating_season": { "start": "2025-10", "end": "2026-03", "label": "Oct 2025–Mar 2026" } }, "assumptions": { "cycles_per_year": 283, "loads_per_week": 5.4, "test_load_lb": 8.45, "gas_views": { "eia_average": "At the state's average gas price (EIA): the published price, fixed monthly charges included. Drives the first screen, the count line, the map and \"cheapest\".", "estimated": "If your home already uses gas: the estimated per-therm rate, the fixed charge taken out. An estimate. Where it does not hold for a state (gas_price_basis = eia_average_fallback) the EIA average is used." }, "propane": "A propane dryer is priced as the gas dryer burning the same Btu per cycle (91,452 Btu per gallon). The research did not price propane dryers; this is an assumption, not a measured figure." }, "methods": { "energy_per_cycle": "Electric and heat pump: 8.45 lb ÷ CEF. Gas: electricity = active + standby kWh; gas therms = (8.45 ÷ CEF − that electricity) × 3,412 ÷ 100,000. CEF = the median Combined Energy Factor of the ENERGY STAR certified standard-size models of the type; the \"basic\" rows use the federal minimum in force, expressed on the Appendix D2 test.", "cost": "cost per load = therms × gas $/therm + kWh × electricity $/kWh, from the prices in the same row; per year = per load × cycles_per_year; per month = per year ÷ 12.", "us": "The US figures use the US row of state-prices.json (EIA national series), not a mean of the states.", "cheapest": "The lowest cost per load of the three types; margin_pct is how far the runner-up is above it." }, "machines": { "gas": { "label": "Gas dryer, ENERGY STAR certified", "selection": "product_type = \"Gas Standard Vented\"; all-in-one washer-dryers excluded; median CEF", "basis": "energy_star_median", "cef": 3.48, "cef_min": 3.48, "cef_max": 3.49, "models": 192, "kwh_per_cycle": 0.3115, "therms_per_cycle": 0.07222, "kwh_equivalent_per_cycle": 2.4282, "btu_gas_per_cycle": 7222.0, "active_kwh_per_cycle": 0.281, "standby_kwh_per_cycle": 0.0305, "status": "unverified", "status_note": "The electricity share (0.281 kWh active) is from the 2022 proposed-rule document and the 1 W standby is an assumption; see \"unverified\"." }, "electric": { "label": "Vented electric dryer, ENERGY STAR certified", "selection": "product_type = \"Electric Standard Vented\", heat_pump_technology empty; all-in-one washer-dryers excluded; median CEF", "basis": "energy_star_median", "cef": 3.93, "cef_min": 3.48, "cef_max": 4.3, "models": 350, "kwh_per_cycle": 2.1501, "therms_per_cycle": 0.0, "kwh_equivalent_per_cycle": 2.1501, "status": "verified" }, "heat_pump": { "label": "Heat pump dryer, ENERGY STAR certified", "selection": "product_type starts with \"Electric Standard\", heat_pump_technology = \"Heat Pump\" (hybrids and all-in-one washer-dryers excluded); median CEF", "basis": "energy_star_median", "cef": 10.5, "cef_min": 8.0, "cef_max": 11.5, "models": 21, "kwh_per_cycle": 0.8048, "therms_per_cycle": 0.0, "kwh_equivalent_per_cycle": 0.8048, "status": "verified", "status_note": "Self-certified ratings on the Appendix D2 test; field performance not checked." }, "basic_gas": { "label": "Basic gas dryer at the federal minimum", "selection": "CEF 2.00 on the Appendix D2 test (= the 3.30 minimum under Appendix D1)", "basis": "federal_minimum", "cef": 2.0, "kwh_per_cycle": 0.3835, "therms_per_cycle": 0.13107, "kwh_equivalent_per_cycle": 4.225, "btu_gas_per_cycle": 13107.0, "active_kwh_per_cycle": 0.353, "standby_kwh_per_cycle": 0.0305, "status": "unverified", "status_note": "Electricity share 0.353 kWh from the 2022 proposed-rule document; standby assumed." }, "basic_electric": { "label": "Basic vented electric dryer at the federal minimum", "selection": "CEF 2.20 on the Appendix D2 test (= the 3.73 minimum under Appendix D1)", "basis": "federal_minimum", "cef": 2.2, "kwh_per_cycle": 3.8409, "therms_per_cycle": 0.0, "kwh_equivalent_per_cycle": 3.8409, "status": "verified" } }, "beyond_cost": { "cycle_time_min": { "gas": { "median": 70.0, "min": 32.0, "max": 77.0, "models": 192 }, "electric": { "median": 67.0, "min": 32.0, "max": 78.0, "models": 350 }, "heat_pump": { "median": 69.0, "min": 53.0, "max": 80.0, "models": 21 } }, "venting": { "gas": { "models": 192, "ventless": 0 }, "electric": { "models": 350, "ventless": 0 }, "heat_pump": { "models": 21, "ventless": 21 } } }, "energy_star": { "dataset": "t9u7-4d2j", "name": "ENERGY STAR Certified Residential Clothes Dryers", "rows": 682, "rows_updated_at": "2026-10-13", "fetched_at": "2026-10-13T22:46:40Z", "from_cache": false }, "constants": [ { "key": "btu_per_kwh", "value": 3412.0, "unit": "Btu/kWh", "source": "10 CFR 430 Subpart B Appendix D2, eCFR as of 2026-09-01, section 4.4", "source_url": "https://www.ecfr.gov/api/versioner/v1/full/2026-09-01/title-10.xml?part=430&appendix=Appendix%20D2%20to%20Subpart%20B%20of%20Part%20430", "checked_on": "2026-10-13", "status": "verified", "note": "" }, { "key": "btu_per_therm", "value": 100000.0, "unit": "Btu/therm", "source": "EIA, Units and calculators", "source_url": "https://www.eia.gov/energyexplained/units-and-calculators/", "checked_on": "2026-10-13", "status": "verified", "note": "" }, { "key": "btu_per_gallon_propane", "value": 91452.0, "unit": "Btu/gal", "source": "EIA, Units and calculators", "source_url": "https://www.eia.gov/energyexplained/units-and-calculators/", "checked_on": "2026-10-13", "status": "verified", "note": "" }, { "key": "dryer.test_load_lb", "value": 8.45, "unit": "lb", "source": "10 CFR 430 Subpart B Appendix D2, eCFR as of 2026-09-01, Table 1 (standard size, drum 4.4 cu ft or more)", "source_url": "https://www.ecfr.gov/api/versioner/v1/full/2026-09-01/title-10.xml?part=430&appendix=Appendix%20D2%20to%20Subpart%20B%20of%20Part%20430", "checked_on": "2026-10-13", "status": "verified", "note": "" }, { "key": "dryer.cycles_per_year", "value": 283.0, "unit": "cycles/yr", "source": "10 CFR 430 Subpart B Appendix D2, eCFR as of 2026-09-01, section 4.5.1", "source_url": "https://www.ecfr.gov/api/versioner/v1/full/2026-09-01/title-10.xml?part=430&appendix=Appendix%20D2%20to%20Subpart%20B%20of%20Part%20430", "checked_on": "2026-10-13", "status": "verified", "note": "The federal test figure, also the basis of the ENERGY STAR annual kWh. Becomes 236 on 2028-03-01." }, { "key": "dryer.cycles_per_year_from_2028", "value": 236.0, "unit": "cycles/yr", "source": "10 CFR 430 Subpart B Appendix D2, eCFR as of 2026-09-01, section 4.5.1 and introductory note", "source_url": "https://www.ecfr.gov/api/versioner/v1/full/2026-09-01/title-10.xml?part=430&appendix=Appendix%20D2%20to%20Subpart%20B%20of%20Part%20430", "checked_on": "2026-10-13", "status": "verified", "note": "Applies from 2028-03-01." }, { "key": "dryer.cycles_per_year_field", "value": 213.0, "unit": "cycles/yr", "source": "89 FR 18188 (DOE field estimate from RECS 2020)", "source_url": "https://www.federalregister.gov/documents/2024/03/12/2024-04765/energy-conservation-program-energy-conservation-standards-for-consumer-clothes-dryers", "checked_on": "2026-10-13", "status": "verified", "note": "A field average with field load sizes (mean 9.49 lb); multiplying it by the 8.45 lb test-load energy is an approximation." }, { "key": "dryer.gas_active_kwh_per_cycle", "value": 0.281, "unit": "kWh/cycle", "source": "DOE Technical Support Document, consumer clothes dryers, Aug 2022 (EERE-2014-BT-STD-0058-0034), p. 7-4: vented gas standard, efficiency levels 2 and 3 (CEF_D2 3.00–3.48)", "source_url": "https://web.archive.org/web/2023id_/https://downloads.regulations.gov/EERE-2014-BT-STD-0058-0034/content.pdf", "checked_on": "2026-10-13", "status": "unverified", "note": "From the August 2022 proposed-rule technical support document. The February 2024 final-rule document (EERE-2014-BT-STD-0058-0059) could not be read; the efficiency levels are the same in both, so the value is probably unchanged, but that is not confirmed. The document says only \"derived from tests done by DOE\", not that it was measured under Appendix D2." }, { "key": "dryer.gas_active_kwh_per_cycle_baseline", "value": 0.353, "unit": "kWh/cycle", "source": "DOE Technical Support Document, Aug 2022, p. 7-4: vented gas standard, baseline and efficiency level 1 (CEF_D2 2.00–2.44)", "source_url": "https://web.archive.org/web/2023id_/https://downloads.regulations.gov/EERE-2014-BT-STD-0058-0034/content.pdf", "checked_on": "2026-10-13", "status": "unverified", "note": "From the August 2022 proposed-rule technical support document. The February 2024 final-rule document (EERE-2014-BT-STD-0058-0059) could not be read; the efficiency levels are the same in both, so the value is probably unchanged, but that is not confirmed. The document says only \"derived from tests done by DOE\", not that it was measured under Appendix D2." }, { "key": "dryer.standby_watts", "value": 1.0, "unit": "W", "source": "Assumption inside the range DOE measured (0.11–2.24 W; TSD Aug 2022, p. 5-21)", "source_url": "https://web.archive.org/web/2023id_/https://downloads.regulations.gov/EERE-2014-BT-STD-0058-0034/content.pdf", "checked_on": "2026-10-13", "status": "assumed", "note": "Moves the gas share of a gas dryer by about ±130 Btu per cycle across the measured range." }, { "key": "dryer.standby_hours_per_year", "value": 8620.0, "unit": "h/yr", "source": "10 CFR 430 Subpart B Appendix D2, eCFR as of 2026-09-01, section 4.5", "source_url": "https://www.ecfr.gov/api/versioner/v1/full/2026-09-01/title-10.xml?part=430&appendix=Appendix%20D2%20to%20Subpart%20B%20of%20Part%20430", "checked_on": "2026-10-13", "status": "verified", "note": "" }, { "key": "dryer.basic_gas_cef_d2", "value": 2.0, "unit": "lb/kWh", "source": "89 FR 18181, Table IV.4: the gas minimum in force (3.30 under Appendix D1, 10 CFR 430.32(h)(3)) equals 2.00 under Appendix D2", "source_url": "https://www.federalregister.gov/documents/2024/03/12/2024-04765/energy-conservation-program-energy-conservation-standards-for-consumer-clothes-dryers", "checked_on": "2026-10-13", "status": "verified", "note": "A dryer legally sold today at \"3.30\" can use 4.2 kWh-equivalent per cycle on the D2 test. From 2028-03-01 the minimum is 3.48 (D2)." }, { "key": "dryer.basic_electric_cef_d2", "value": 2.2, "unit": "lb/kWh", "source": "89 FR 18181, Table IV.4: the vented electric standard minimum in force (3.73 under Appendix D1) equals 2.20 under Appendix D2", "source_url": "https://www.federalregister.gov/documents/2024/03/12/2024-04765/energy-conservation-program-energy-conservation-standards-for-consumer-clothes-dryers", "checked_on": "2026-10-13", "status": "verified", "note": "From 2028-03-01 the minimum is 3.93 (D2)." } ], "unverified": [ { "what": "dryer.gas_active_kwh_per_cycle", "status": "unverified", "note": "From the August 2022 proposed-rule technical support document. The February 2024 final-rule document (EERE-2014-BT-STD-0058-0059) could not be read; the efficiency levels are the same in both, so the value is probably unchanged, but that is not confirmed. The document says only \"derived from tests done by DOE\", not that it was measured under Appendix D2." }, { "what": "dryer.gas_active_kwh_per_cycle_baseline", "status": "unverified", "note": "From the August 2022 proposed-rule technical support document. The February 2024 final-rule document (EERE-2014-BT-STD-0058-0059) could not be read; the efficiency levels are the same in both, so the value is probably unchanged, but that is not confirmed. The document says only \"derived from tests done by DOE\", not that it was measured under Appendix D2." }, { "what": "dryer.standby_watts", "status": "assumed", "note": "Moves the gas share of a gas dryer by about ±130 Btu per cycle across the measured range." }, { "what": "propane dryer energy", "status": "assumed", "note": "Priced as the certified gas dryer burning the same Btu per cycle; the research did not price propane dryers." }, { "what": "gas_estimated_usd_per_therm", "status": "estimate", "note": "A regression estimate checked against two real tariffs only (Illinois, Georgia); it over-reads Georgia. Show it as a second view, never as a published price." } ], "us": { "code": "US", "name": "United States", "slug": "united-states", "electricity_cents_per_kwh": 17.99, "gas_usd_per_therm": 1.5754, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.1242, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.5754, "cost_per_load_usd": { "gas": 0.1698, "electric": 0.3868, "heat_pump": 0.1448 }, "cost_per_month_usd": { "gas": 4.0, "electric": 9.12, "heat_pump": 3.41 }, "cost_per_year_usd": { "gas": 48.06, "electric": 109.47, "heat_pump": 40.97 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 17.3, "yearly_gap_usd": 68.49, "electric_over_gas_per_year_usd": 61.41, "gas_price_basis": "eia_average" }, "estimated": { "gas_usd_per_therm": 1.1242, "cost_per_load_usd": { "gas": 0.1372, "electric": 0.3868, "heat_pump": 0.1448 }, "cost_per_month_usd": { "gas": 3.24, "electric": 9.12, "heat_pump": 3.41 }, "cost_per_year_usd": { "gas": 38.84, "electric": 109.47, "heat_pump": 40.97 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 5.5, "yearly_gap_usd": 70.63, "electric_over_gas_per_year_usd": 70.63, "gas_price_basis": "estimated_per_therm" }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 2.553, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2577, "electric": 0.3868, "heat_pump": 0.1448 }, "cost_per_year_usd": { "propane": 72.92, "electric": 109.47, "heat_pump": 40.97 }, "cheapest": "heat_pump", "status": "assumed" }, "basic_models": { "gas_price_basis": "eia_average", "cost_per_load_usd": { "basic_gas": 0.2755, "basic_electric": 0.691 }, "cost_per_year_usd": { "basic_gas": 77.96, "basic_electric": 195.55 } }, "load_scenarios": [ { "cycles_per_year": 208, "label": "4 loads a week", "gas_price_basis": "eia_average", "cost_per_year_usd": { "gas": 35.32, "electric": 80.46, "heat_pump": 30.11 } }, { "cycles_per_year": 416, "label": "8 loads a week", "gas_price_basis": "eia_average", "cost_per_year_usd": { "gas": 70.64, "electric": 160.91, "heat_pump": 60.23 } }, { "cycles_per_year": 213, "label": "DOE field estimate (89 FR 18188)", "gas_price_basis": "eia_average", "cost_per_year_usd": { "gas": 36.17, "electric": 82.39, "heat_pump": 30.84 } }, { "cycles_per_year": 236, "label": "federal test figure from 2028-03-01", "gas_price_basis": "eia_average", "cost_per_year_usd": { "gas": 40.08, "electric": 91.29, "heat_pump": 34.17 } } ] }, "states": { "AL": { "code": "AL", "name": "Alabama", "slug": "alabama", "electricity_cents_per_kwh": 16.44, "gas_usd_per_therm": 1.7851, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.5207, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.7851, "cost_per_load_usd": { "gas": 0.1801, "electric": 0.3535, "heat_pump": 0.1323 }, "cost_per_month_usd": { "gas": 4.25, "electric": 8.34, "heat_pump": 3.12 }, "cost_per_year_usd": { "gas": 50.98, "electric": 100.03, "heat_pump": 37.44 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 36.1, "yearly_gap_usd": 62.59, "electric_over_gas_per_year_usd": 49.06, "gas_price_basis": "eia_average", "yearly_gap_rank": 23 }, "estimated": { "gas_usd_per_therm": 1.5207, "cost_per_load_usd": { "gas": 0.161, "electric": 0.3535, "heat_pump": 0.1323 }, "cost_per_month_usd": { "gas": 3.8, "electric": 8.34, "heat_pump": 3.12 }, "cost_per_year_usd": { "gas": 45.57, "electric": 100.03, "heat_pump": 37.44 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 21.7, "yearly_gap_usd": 62.59, "electric_over_gas_per_year_usd": 54.46, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 25 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.462, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3246, "electric": 0.3535, "heat_pump": 0.1323 }, "cost_per_year_usd": { "propane": 91.86, "electric": 100.03, "heat_pump": 37.44 }, "cheapest": "heat_pump", "status": "assumed" } }, "AK": { "code": "AK", "name": "Alaska", "slug": "alaska", "electricity_cents_per_kwh": 26.85, "gas_usd_per_therm": 1.3759, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.0753, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.3759, "cost_per_load_usd": { "gas": 0.183, "electric": 0.5773, "heat_pump": 0.2161 }, "cost_per_month_usd": { "gas": 4.32, "electric": 13.61, "heat_pump": 5.1 }, "cost_per_year_usd": { "gas": 51.79, "electric": 163.38, "heat_pump": 61.15 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 18.1, "yearly_gap_usd": 111.59, "electric_over_gas_per_year_usd": 111.59, "gas_price_basis": "eia_average", "yearly_gap_rank": 6 }, "estimated": { "gas_usd_per_therm": 1.0753, "cost_per_load_usd": { "gas": 0.1613, "electric": 0.5773, "heat_pump": 0.2161 }, "cost_per_month_usd": { "gas": 3.8, "electric": 13.61, "heat_pump": 5.1 }, "cost_per_year_usd": { "gas": 45.65, "electric": 163.38, "heat_pump": 61.15 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 34.0, "yearly_gap_usd": 117.73, "electric_over_gas_per_year_usd": 117.73, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 5 }, "cheapest_changes_at_estimated": false, "propane": null }, "AZ": { "code": "AZ", "name": "Arizona", "slug": "arizona", "electricity_cents_per_kwh": 15.4, "gas_usd_per_therm": 1.9765, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.4409, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.9765, "cost_per_load_usd": { "gas": 0.1907, "electric": 0.3311, "heat_pump": 0.1239 }, "cost_per_month_usd": { "gas": 4.5, "electric": 7.81, "heat_pump": 2.92 }, "cost_per_year_usd": { "gas": 53.97, "electric": 93.71, "heat_pump": 35.07 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 53.9, "yearly_gap_usd": 58.63, "electric_over_gas_per_year_usd": 39.73, "gas_price_basis": "eia_average", "yearly_gap_rank": 30 }, "estimated": { "gas_usd_per_therm": 1.4409, "cost_per_load_usd": { "gas": 0.152, "electric": 0.3311, "heat_pump": 0.1239 }, "cost_per_month_usd": { "gas": 3.59, "electric": 7.81, "heat_pump": 2.92 }, "cost_per_year_usd": { "gas": 43.03, "electric": 93.71, "heat_pump": 35.07 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 22.7, "yearly_gap_usd": 58.63, "electric_over_gas_per_year_usd": 50.68, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 33 }, "cheapest_changes_at_estimated": false, "propane": null }, "AR": { "code": "AR", "name": "Arkansas", "slug": "arkansas", "electricity_cents_per_kwh": 13.43, "gas_usd_per_therm": 2.2084, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 2.2084, "cost_per_load_usd": { "gas": 0.2013, "electric": 0.2888, "heat_pump": 0.1081 }, "cost_per_month_usd": { "gas": 4.75, "electric": 6.81, "heat_pump": 2.55 }, "cost_per_year_usd": { "gas": 56.98, "electric": 81.72, "heat_pump": 30.59 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 86.3, "yearly_gap_usd": 51.13, "electric_over_gas_per_year_usd": 24.74, "gas_price_basis": "eia_average", "yearly_gap_rank": 45 }, "estimated": { "gas_usd_per_therm": 2.2084, "cost_per_load_usd": { "gas": 0.2013, "electric": 0.2888, "heat_pump": 0.1081 }, "cost_per_month_usd": { "gas": 4.75, "electric": 6.81, "heat_pump": 2.55 }, "cost_per_year_usd": { "gas": 56.98, "electric": 81.72, "heat_pump": 30.59 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 86.3, "yearly_gap_usd": 51.13, "electric_over_gas_per_year_usd": 24.74, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 48 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.342, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2268, "electric": 0.2888, "heat_pump": 0.1081 }, "cost_per_year_usd": { "propane": 64.18, "electric": 81.72, "heat_pump": 30.59 }, "cheapest": "heat_pump", "status": "assumed" } }, "CA": { "code": "CA", "name": "California", "slug": "california", "electricity_cents_per_kwh": 32.99, "gas_usd_per_therm": 2.1536, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 2.1536, "cost_per_load_usd": { "gas": 0.2583, "electric": 0.7093, "heat_pump": 0.2655 }, "cost_per_month_usd": { "gas": 6.09, "electric": 16.73, "heat_pump": 6.26 }, "cost_per_year_usd": { "gas": 73.1, "electric": 200.74, "heat_pump": 75.14 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 2.8, "yearly_gap_usd": 127.64, "electric_over_gas_per_year_usd": 127.64, "gas_price_basis": "eia_average", "yearly_gap_rank": 2 }, "estimated": { "gas_usd_per_therm": 2.1536, "cost_per_load_usd": { "gas": 0.2583, "electric": 0.7093, "heat_pump": 0.2655 }, "cost_per_month_usd": { "gas": 6.09, "electric": 16.73, "heat_pump": 6.26 }, "cost_per_year_usd": { "gas": 73.1, "electric": 200.74, "heat_pump": 75.14 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 2.8, "yearly_gap_usd": 127.64, "electric_over_gas_per_year_usd": 127.64, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 2 }, "cheapest_changes_at_estimated": false, "propane": null }, "CO": { "code": "CO", "name": "Colorado", "slug": "colorado", "electricity_cents_per_kwh": 16.55, "gas_usd_per_therm": 1.0868, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.8583, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.0868, "cost_per_load_usd": { "gas": 0.13, "electric": 0.3558, "heat_pump": 0.1332 }, "cost_per_month_usd": { "gas": 3.07, "electric": 8.39, "heat_pump": 3.14 }, "cost_per_year_usd": { "gas": 36.8, "electric": 100.7, "heat_pump": 37.69 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 2.4, "yearly_gap_usd": 63.9, "electric_over_gas_per_year_usd": 63.9, "gas_price_basis": "eia_average", "yearly_gap_rank": 21 }, "estimated": { "gas_usd_per_therm": 0.8583, "cost_per_load_usd": { "gas": 0.1135, "electric": 0.3558, "heat_pump": 0.1332 }, "cost_per_month_usd": { "gas": 2.68, "electric": 8.39, "heat_pump": 3.14 }, "cost_per_year_usd": { "gas": 32.13, "electric": 100.7, "heat_pump": 37.69 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 17.3, "yearly_gap_usd": 68.57, "electric_over_gas_per_year_usd": 68.57, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 20 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.223, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2271, "electric": 0.3558, "heat_pump": 0.1332 }, "cost_per_year_usd": { "propane": 64.27, "electric": 100.7, "heat_pump": 37.69 }, "cheapest": "heat_pump", "status": "assumed" } }, "CT": { "code": "CT", "name": "Connecticut", "slug": "connecticut", "electricity_cents_per_kwh": 27.99, "gas_usd_per_therm": 1.634, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2024", "gas_estimated_usd_per_therm": 1.4183, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.634, "cost_per_load_usd": { "gas": 0.2052, "electric": 0.6018, "heat_pump": 0.2253 }, "cost_per_month_usd": { "gas": 4.84, "electric": 14.19, "heat_pump": 5.31 }, "cost_per_year_usd": { "gas": 58.07, "electric": 170.31, "heat_pump": 63.75 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 9.8, "yearly_gap_usd": 112.24, "electric_over_gas_per_year_usd": 112.24, "gas_price_basis": "eia_average", "yearly_gap_rank": 5 }, "estimated": { "gas_usd_per_therm": 1.4183, "cost_per_load_usd": { "gas": 0.1896, "electric": 0.6018, "heat_pump": 0.2253 }, "cost_per_month_usd": { "gas": 4.47, "electric": 14.19, "heat_pump": 5.31 }, "cost_per_year_usd": { "gas": 53.66, "electric": 170.31, "heat_pump": 63.75 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 18.8, "yearly_gap_usd": 116.65, "electric_over_gas_per_year_usd": 116.65, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 6 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.828, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3895, "electric": 0.6018, "heat_pump": 0.2253 }, "cost_per_year_usd": { "propane": 110.22, "electric": 170.31, "heat_pump": 63.75 }, "cheapest": "heat_pump", "status": "assumed" } }, "DE": { "code": "DE", "name": "Delaware", "slug": "delaware", "electricity_cents_per_kwh": 17.79, "gas_usd_per_therm": 1.7779, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.2363, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.7779, "cost_per_load_usd": { "gas": 0.1838, "electric": 0.3825, "heat_pump": 0.1432 }, "cost_per_month_usd": { "gas": 4.33, "electric": 9.02, "heat_pump": 3.38 }, "cost_per_year_usd": { "gas": 52.02, "electric": 108.25, "heat_pump": 40.52 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 28.4, "yearly_gap_usd": 67.73, "electric_over_gas_per_year_usd": 56.23, "gas_price_basis": "eia_average", "yearly_gap_rank": 19 }, "estimated": { "gas_usd_per_therm": 1.2363, "cost_per_load_usd": { "gas": 0.1447, "electric": 0.3825, "heat_pump": 0.1432 }, "cost_per_month_usd": { "gas": 3.41, "electric": 9.02, "heat_pump": 3.38 }, "cost_per_year_usd": { "gas": 40.95, "electric": 108.25, "heat_pump": 40.52 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 1.1, "yearly_gap_usd": 67.73, "electric_over_gas_per_year_usd": 67.3, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 21 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.572, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3375, "electric": 0.3825, "heat_pump": 0.1432 }, "cost_per_year_usd": { "propane": 95.51, "electric": 108.25, "heat_pump": 40.52 }, "cheapest": "heat_pump", "status": "assumed" } }, "DC": { "code": "DC", "name": "District of Columbia", "slug": "district-of-columbia", "electricity_cents_per_kwh": 24.2, "gas_usd_per_therm": 1.7111, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.3315, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.7111, "cost_per_load_usd": { "gas": 0.199, "electric": 0.5203, "heat_pump": 0.1948 }, "cost_per_month_usd": { "gas": 4.69, "electric": 12.27, "heat_pump": 4.59 }, "cost_per_year_usd": { "gas": 56.31, "electric": 147.25, "heat_pump": 55.12 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 2.2, "yearly_gap_usd": 92.13, "electric_over_gas_per_year_usd": 90.95, "gas_price_basis": "eia_average", "yearly_gap_rank": 11 }, "estimated": { "gas_usd_per_therm": 1.3315, "cost_per_load_usd": { "gas": 0.1715, "electric": 0.5203, "heat_pump": 0.1948 }, "cost_per_month_usd": { "gas": 4.05, "electric": 12.27, "heat_pump": 4.59 }, "cost_per_year_usd": { "gas": 48.55, "electric": 147.25, "heat_pump": 55.12 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 13.5, "yearly_gap_usd": 98.7, "electric_over_gas_per_year_usd": 98.7, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 11 }, "cheapest_changes_at_estimated": true, "propane": null }, "FL": { "code": "FL", "name": "Florida", "slug": "florida", "electricity_cents_per_kwh": 15.39, "gas_usd_per_therm": 2.4883, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 1.5167, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 2.4883, "cost_per_load_usd": { "gas": 0.2276, "electric": 0.3309, "heat_pump": 0.1239 }, "cost_per_month_usd": { "gas": 5.37, "electric": 7.8, "heat_pump": 2.92 }, "cost_per_year_usd": { "gas": 64.42, "electric": 93.64, "heat_pump": 35.05 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 83.8, "yearly_gap_usd": 58.59, "electric_over_gas_per_year_usd": 29.22, "gas_price_basis": "eia_average", "yearly_gap_rank": 31 }, "estimated": { "gas_usd_per_therm": 1.5167, "cost_per_load_usd": { "gas": 0.1575, "electric": 0.3309, "heat_pump": 0.1239 }, "cost_per_month_usd": { "gas": 3.71, "electric": 7.8, "heat_pump": 2.92 }, "cost_per_year_usd": { "gas": 44.57, "electric": 93.64, "heat_pump": 35.05 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 27.1, "yearly_gap_usd": 58.59, "electric_over_gas_per_year_usd": 49.08, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 34 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 4.667, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.4165, "electric": 0.3309, "heat_pump": 0.1239 }, "cost_per_year_usd": { "propane": 117.87, "electric": 93.64, "heat_pump": 35.05 }, "cheapest": "heat_pump", "status": "assumed" } }, "GA": { "code": "GA", "name": "Georgia", "slug": "georgia", "electricity_cents_per_kwh": 15.12, "gas_usd_per_therm": 2.1416, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.6936, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 2.1416, "cost_per_load_usd": { "gas": 0.2018, "electric": 0.3251, "heat_pump": 0.1217 }, "cost_per_month_usd": { "gas": 4.76, "electric": 7.67, "heat_pump": 2.87 }, "cost_per_year_usd": { "gas": 57.1, "electric": 92.0, "heat_pump": 34.44 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 65.8, "yearly_gap_usd": 57.56, "electric_over_gas_per_year_usd": 34.9, "gas_price_basis": "eia_average", "yearly_gap_rank": 32 }, "estimated": { "gas_usd_per_therm": 0.6936, "cost_per_load_usd": { "gas": 0.0972, "electric": 0.3251, "heat_pump": 0.1217 }, "cost_per_month_usd": { "gas": 2.29, "electric": 7.67, "heat_pump": 2.87 }, "cost_per_year_usd": { "gas": 27.5, "electric": 92.0, "heat_pump": 34.44 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 25.2, "yearly_gap_usd": 64.5, "electric_over_gas_per_year_usd": 64.5, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 23 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 3.078, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2902, "electric": 0.3251, "heat_pump": 0.1217 }, "cost_per_year_usd": { "propane": 82.12, "electric": 92.0, "heat_pump": 34.44 }, "cheapest": "heat_pump", "status": "assumed" } }, "HI": { "code": "HI", "name": "Hawaii", "slug": "hawaii", "electricity_cents_per_kwh": 43.51, "gas_usd_per_therm": 5.7121, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 5.7121, "cost_per_load_usd": { "gas": 0.5481, "electric": 0.9355, "heat_pump": 0.3502 }, "cost_per_month_usd": { "gas": 12.93, "electric": 22.06, "heat_pump": 8.26 }, "cost_per_year_usd": { "gas": 155.1, "electric": 264.75, "heat_pump": 99.1 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 56.5, "yearly_gap_usd": 165.65, "electric_over_gas_per_year_usd": 109.65, "gas_price_basis": "eia_average", "yearly_gap_rank": 1 }, "estimated": { "gas_usd_per_therm": 5.7121, "cost_per_load_usd": { "gas": 0.5481, "electric": 0.9355, "heat_pump": 0.3502 }, "cost_per_month_usd": { "gas": 12.93, "electric": 22.06, "heat_pump": 8.26 }, "cost_per_year_usd": { "gas": 155.1, "electric": 264.75, "heat_pump": 99.1 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 56.5, "yearly_gap_usd": 165.65, "electric_over_gas_per_year_usd": 109.65, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 1 }, "cheapest_changes_at_estimated": false, "propane": null }, "ID": { "code": "ID", "name": "Idaho", "slug": "idaho", "electricity_cents_per_kwh": 12.65, "gas_usd_per_therm": 0.7706, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.6079, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 0.7706, "cost_per_load_usd": { "gas": 0.0951, "electric": 0.272, "heat_pump": 0.1018 }, "cost_per_month_usd": { "gas": 2.24, "electric": 6.41, "heat_pump": 2.4 }, "cost_per_year_usd": { "gas": 26.9, "electric": 76.97, "heat_pump": 28.81 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 7.1, "yearly_gap_usd": 50.07, "electric_over_gas_per_year_usd": 50.07, "gas_price_basis": "eia_average", "yearly_gap_rank": 48 }, "estimated": { "gas_usd_per_therm": 0.6079, "cost_per_load_usd": { "gas": 0.0833, "electric": 0.272, "heat_pump": 0.1018 }, "cost_per_month_usd": { "gas": 1.96, "electric": 6.41, "heat_pump": 2.4 }, "cost_per_year_usd": { "gas": 23.58, "electric": 76.97, "heat_pump": 28.81 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 22.2, "yearly_gap_usd": 53.4, "electric_over_gas_per_year_usd": 53.4, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 43 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.363, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.226, "electric": 0.272, "heat_pump": 0.1018 }, "cost_per_year_usd": { "propane": 63.96, "electric": 76.97, "heat_pump": 28.81 }, "cheapest": "heat_pump", "status": "assumed" } }, "IL": { "code": "IL", "name": "Illinois", "slug": "illinois", "electricity_cents_per_kwh": 18.79, "gas_usd_per_therm": 1.136, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.7849, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.136, "cost_per_load_usd": { "gas": 0.1406, "electric": 0.404, "heat_pump": 0.1512 }, "cost_per_month_usd": { "gas": 3.32, "electric": 9.53, "heat_pump": 3.57 }, "cost_per_year_usd": { "gas": 39.78, "electric": 114.33, "heat_pump": 42.8 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 7.6, "yearly_gap_usd": 74.55, "electric_over_gas_per_year_usd": 74.55, "gas_price_basis": "eia_average", "yearly_gap_rank": 17 }, "estimated": { "gas_usd_per_therm": 0.7849, "cost_per_load_usd": { "gas": 0.1152, "electric": 0.404, "heat_pump": 0.1512 }, "cost_per_month_usd": { "gas": 2.72, "electric": 9.53, "heat_pump": 3.57 }, "cost_per_year_usd": { "gas": 32.61, "electric": 114.33, "heat_pump": 42.8 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 31.3, "yearly_gap_usd": 81.73, "electric_over_gas_per_year_usd": 81.73, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 15 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 1.905, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.209, "electric": 0.404, "heat_pump": 0.1512 }, "cost_per_year_usd": { "propane": 59.14, "electric": 114.33, "heat_pump": 42.8 }, "cheapest": "heat_pump", "status": "assumed" } }, "IN": { "code": "IN", "name": "Indiana", "slug": "indiana", "electricity_cents_per_kwh": 16.94, "gas_usd_per_therm": 1.1543, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.7356, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.1543, "cost_per_load_usd": { "gas": 0.1361, "electric": 0.3642, "heat_pump": 0.1363 }, "cost_per_month_usd": { "gas": 3.21, "electric": 8.59, "heat_pump": 3.22 }, "cost_per_year_usd": { "gas": 38.53, "electric": 103.08, "heat_pump": 38.58 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 0.1, "yearly_gap_usd": 64.55, "electric_over_gas_per_year_usd": 64.55, "gas_price_basis": "eia_average", "yearly_gap_rank": 20 }, "estimated": { "gas_usd_per_therm": 0.7356, "cost_per_load_usd": { "gas": 0.1059, "electric": 0.3642, "heat_pump": 0.1363 }, "cost_per_month_usd": { "gas": 2.5, "electric": 8.59, "heat_pump": 3.22 }, "cost_per_year_usd": { "gas": 29.97, "electric": 103.08, "heat_pump": 38.58 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 28.7, "yearly_gap_usd": 73.11, "electric_over_gas_per_year_usd": 73.11, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 19 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.473, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2481, "electric": 0.3642, "heat_pump": 0.1363 }, "cost_per_year_usd": { "propane": 70.2, "electric": 103.08, "heat_pump": 38.58 }, "cheapest": "heat_pump", "status": "assumed" } }, "IA": { "code": "IA", "name": "Iowa", "slug": "iowa", "electricity_cents_per_kwh": 14.13, "gas_usd_per_therm": 1.0949, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.7447, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.0949, "cost_per_load_usd": { "gas": 0.1231, "electric": 0.3038, "heat_pump": 0.1137 }, "cost_per_month_usd": { "gas": 2.9, "electric": 7.16, "heat_pump": 2.68 }, "cost_per_year_usd": { "gas": 34.83, "electric": 85.98, "heat_pump": 32.18 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 8.2, "yearly_gap_usd": 53.8, "electric_over_gas_per_year_usd": 51.14, "gas_price_basis": "eia_average", "yearly_gap_rank": 38 }, "estimated": { "gas_usd_per_therm": 0.7447, "cost_per_load_usd": { "gas": 0.0978, "electric": 0.3038, "heat_pump": 0.1137 }, "cost_per_month_usd": { "gas": 2.31, "electric": 7.16, "heat_pump": 2.68 }, "cost_per_year_usd": { "gas": 27.68, "electric": 85.98, "heat_pump": 32.18 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 16.3, "yearly_gap_usd": 58.3, "electric_over_gas_per_year_usd": 58.3, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 35 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 1.591, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.1697, "electric": 0.3038, "heat_pump": 0.1137 }, "cost_per_year_usd": { "propane": 48.01, "electric": 85.98, "heat_pump": 32.18 }, "cheapest": "heat_pump", "status": "assumed" } }, "KS": { "code": "KS", "name": "Kansas", "slug": "kansas", "electricity_cents_per_kwh": 15.09, "gas_usd_per_therm": 1.4254, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 0.8762, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.4254, "cost_per_load_usd": { "gas": 0.1499, "electric": 0.3245, "heat_pump": 0.1214 }, "cost_per_month_usd": { "gas": 3.54, "electric": 7.65, "heat_pump": 2.86 }, "cost_per_year_usd": { "gas": 42.44, "electric": 91.82, "heat_pump": 34.37 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 23.5, "yearly_gap_usd": 57.45, "electric_over_gas_per_year_usd": 49.38, "gas_price_basis": "eia_average", "yearly_gap_rank": 33 }, "estimated": { "gas_usd_per_therm": 0.8762, "cost_per_load_usd": { "gas": 0.1103, "electric": 0.3245, "heat_pump": 0.1214 }, "cost_per_month_usd": { "gas": 2.6, "electric": 7.65, "heat_pump": 2.86 }, "cost_per_year_usd": { "gas": 31.21, "electric": 91.82, "heat_pump": 34.37 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 10.1, "yearly_gap_usd": 60.61, "electric_over_gas_per_year_usd": 60.61, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 27 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 1.899, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.197, "electric": 0.3245, "heat_pump": 0.1214 }, "cost_per_year_usd": { "propane": 55.74, "electric": 91.82, "heat_pump": 34.37 }, "cheapest": "heat_pump", "status": "assumed" } }, "KY": { "code": "KY", "name": "Kentucky", "slug": "kentucky", "electricity_cents_per_kwh": 13.92, "gas_usd_per_therm": 1.556, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.9834, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.556, "cost_per_load_usd": { "gas": 0.1557, "electric": 0.2993, "heat_pump": 0.112 }, "cost_per_month_usd": { "gas": 3.67, "electric": 7.06, "heat_pump": 2.64 }, "cost_per_year_usd": { "gas": 44.07, "electric": 84.7, "heat_pump": 31.7 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 39.0, "yearly_gap_usd": 53.0, "electric_over_gas_per_year_usd": 40.63, "gas_price_basis": "eia_average", "yearly_gap_rank": 42 }, "estimated": { "gas_usd_per_therm": 0.9834, "cost_per_load_usd": { "gas": 0.1144, "electric": 0.2993, "heat_pump": 0.112 }, "cost_per_month_usd": { "gas": 2.7, "electric": 7.06, "heat_pump": 2.64 }, "cost_per_year_usd": { "gas": 32.37, "electric": 84.7, "heat_pump": 31.7 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 2.1, "yearly_gap_usd": 53.0, "electric_over_gas_per_year_usd": 52.33, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 45 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.672, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2544, "electric": 0.2993, "heat_pump": 0.112 }, "cost_per_year_usd": { "propane": 71.99, "electric": 84.7, "heat_pump": 31.7 }, "cheapest": "heat_pump", "status": "assumed" } }, "LA": { "code": "LA", "name": "Louisiana", "slug": "louisiana", "electricity_cents_per_kwh": 12.99, "gas_usd_per_therm": 1.7049, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 1.1776, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.7049, "cost_per_load_usd": { "gas": 0.1636, "electric": 0.2793, "heat_pump": 0.1045 }, "cost_per_month_usd": { "gas": 3.86, "electric": 6.59, "heat_pump": 2.47 }, "cost_per_year_usd": { "gas": 46.3, "electric": 79.04, "heat_pump": 29.59 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 56.5, "yearly_gap_usd": 49.46, "electric_over_gas_per_year_usd": 32.74, "gas_price_basis": "eia_average", "yearly_gap_rank": 49 }, "estimated": { "gas_usd_per_therm": 1.1776, "cost_per_load_usd": { "gas": 0.1255, "electric": 0.2793, "heat_pump": 0.1045 }, "cost_per_month_usd": { "gas": 2.96, "electric": 6.59, "heat_pump": 2.47 }, "cost_per_year_usd": { "gas": 35.52, "electric": 79.04, "heat_pump": 29.59 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 20.1, "yearly_gap_usd": 49.46, "electric_over_gas_per_year_usd": 43.52, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 51 }, "cheapest_changes_at_estimated": false, "propane": null }, "ME": { "code": "ME", "name": "Maine", "slug": "maine", "electricity_cents_per_kwh": 29.31, "gas_usd_per_therm": 1.8169, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2024", "gas_estimated_usd_per_therm": 1.3663, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.8169, "cost_per_load_usd": { "gas": 0.2225, "electric": 0.6302, "heat_pump": 0.2359 }, "cost_per_month_usd": { "gas": 5.25, "electric": 14.86, "heat_pump": 5.56 }, "cost_per_year_usd": { "gas": 62.97, "electric": 178.34, "heat_pump": 66.76 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 6.0, "yearly_gap_usd": 115.37, "electric_over_gas_per_year_usd": 115.37, "gas_price_basis": "eia_average", "yearly_gap_rank": 4 }, "estimated": { "gas_usd_per_therm": 1.3663, "cost_per_load_usd": { "gas": 0.19, "electric": 0.6302, "heat_pump": 0.2359 }, "cost_per_month_usd": { "gas": 4.48, "electric": 14.86, "heat_pump": 5.56 }, "cost_per_year_usd": { "gas": 53.76, "electric": 178.34, "heat_pump": 66.76 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 24.2, "yearly_gap_usd": 124.58, "electric_over_gas_per_year_usd": 124.58, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 3 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.294, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3514, "electric": 0.6302, "heat_pump": 0.2359 }, "cost_per_year_usd": { "propane": 99.45, "electric": 178.34, "heat_pump": 66.76 }, "cheapest": "heat_pump", "status": "assumed" } }, "MD": { "code": "MD", "name": "Maryland", "slug": "maryland", "electricity_cents_per_kwh": 21.03, "gas_usd_per_therm": 1.5549, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2024", "gas_estimated_usd_per_therm": 1.3782, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.5549, "cost_per_load_usd": { "gas": 0.1778, "electric": 0.4522, "heat_pump": 0.1692 }, "cost_per_month_usd": { "gas": 4.19, "electric": 10.66, "heat_pump": 3.99 }, "cost_per_year_usd": { "gas": 50.32, "electric": 127.96, "heat_pump": 47.9 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 5.1, "yearly_gap_usd": 80.07, "electric_over_gas_per_year_usd": 77.64, "gas_price_basis": "eia_average", "yearly_gap_rank": 14 }, "estimated": { "gas_usd_per_therm": 1.3782, "cost_per_load_usd": { "gas": 0.165, "electric": 0.4522, "heat_pump": 0.1692 }, "cost_per_month_usd": { "gas": 3.89, "electric": 10.66, "heat_pump": 3.99 }, "cost_per_year_usd": { "gas": 46.71, "electric": 127.96, "heat_pump": 47.9 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 2.5, "yearly_gap_usd": 81.26, "electric_over_gas_per_year_usd": 81.26, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 16 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 3.585, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3486, "electric": 0.4522, "heat_pump": 0.1692 }, "cost_per_year_usd": { "propane": 98.66, "electric": 127.96, "heat_pump": 47.9 }, "cheapest": "heat_pump", "status": "assumed" } }, "MA": { "code": "MA", "name": "Massachusetts", "slug": "massachusetts", "electricity_cents_per_kwh": 30.43, "gas_usd_per_therm": 2.5505, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 2.5505, "cost_per_load_usd": { "gas": 0.279, "electric": 0.6543, "heat_pump": 0.2449 }, "cost_per_month_usd": { "gas": 6.58, "electric": 15.43, "heat_pump": 5.78 }, "cost_per_year_usd": { "gas": 78.95, "electric": 185.16, "heat_pump": 69.31 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 13.9, "yearly_gap_usd": 115.85, "electric_over_gas_per_year_usd": 106.21, "gas_price_basis": "eia_average", "yearly_gap_rank": 3 }, "estimated": { "gas_usd_per_therm": 2.5505, "cost_per_load_usd": { "gas": 0.279, "electric": 0.6543, "heat_pump": 0.2449 }, "cost_per_month_usd": { "gas": 6.58, "electric": 15.43, "heat_pump": 5.78 }, "cost_per_year_usd": { "gas": 78.95, "electric": 185.16, "heat_pump": 69.31 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 13.9, "yearly_gap_usd": 115.85, "electric_over_gas_per_year_usd": 106.21, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 7 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.413, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3643, "electric": 0.6543, "heat_pump": 0.2449 }, "cost_per_year_usd": { "propane": 103.1, "electric": 185.16, "heat_pump": 69.31 }, "cheapest": "heat_pump", "status": "assumed" } }, "MI": { "code": "MI", "name": "Michigan", "slug": "michigan", "electricity_cents_per_kwh": 21.05, "gas_usd_per_therm": 1.0844, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.8645, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.0844, "cost_per_load_usd": { "gas": 0.1439, "electric": 0.4526, "heat_pump": 0.1694 }, "cost_per_month_usd": { "gas": 3.39, "electric": 10.67, "heat_pump": 4.0 }, "cost_per_year_usd": { "gas": 40.72, "electric": 128.08, "heat_pump": 47.94 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 17.7, "yearly_gap_usd": 87.36, "electric_over_gas_per_year_usd": 87.36, "gas_price_basis": "eia_average", "yearly_gap_rank": 13 }, "estimated": { "gas_usd_per_therm": 0.8645, "cost_per_load_usd": { "gas": 0.128, "electric": 0.4526, "heat_pump": 0.1694 }, "cost_per_month_usd": { "gas": 3.02, "electric": 10.67, "heat_pump": 4.0 }, "cost_per_year_usd": { "gas": 36.23, "electric": 128.08, "heat_pump": 47.94 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 32.3, "yearly_gap_usd": 91.86, "electric_over_gas_per_year_usd": 91.86, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 13 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.262, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2442, "electric": 0.4526, "heat_pump": 0.1694 }, "cost_per_year_usd": { "propane": 69.11, "electric": 128.08, "heat_pump": 47.94 }, "cheapest": "heat_pump", "status": "assumed" } }, "MN": { "code": "MN", "name": "Minnesota", "slug": "minnesota", "electricity_cents_per_kwh": 16.22, "gas_usd_per_therm": 1.0753, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.8652, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.0753, "cost_per_load_usd": { "gas": 0.1282, "electric": 0.3487, "heat_pump": 0.1305 }, "cost_per_month_usd": { "gas": 3.02, "electric": 8.22, "heat_pump": 3.08 }, "cost_per_year_usd": { "gas": 36.28, "electric": 98.7, "heat_pump": 36.94 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 1.8, "yearly_gap_usd": 62.42, "electric_over_gas_per_year_usd": 62.42, "gas_price_basis": "eia_average", "yearly_gap_rank": 24 }, "estimated": { "gas_usd_per_therm": 0.8652, "cost_per_load_usd": { "gas": 0.113, "electric": 0.3487, "heat_pump": 0.1305 }, "cost_per_month_usd": { "gas": 2.67, "electric": 8.22, "heat_pump": 3.08 }, "cost_per_year_usd": { "gas": 31.98, "electric": 98.7, "heat_pump": 36.94 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 15.5, "yearly_gap_usd": 66.71, "electric_over_gas_per_year_usd": 66.71, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 22 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 1.951, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2046, "electric": 0.3487, "heat_pump": 0.1305 }, "cost_per_year_usd": { "propane": 57.9, "electric": 98.7, "heat_pump": 36.94 }, "cheapest": "heat_pump", "status": "assumed" } }, "MS": { "code": "MS", "name": "Mississippi", "slug": "mississippi", "electricity_cents_per_kwh": 14.77, "gas_usd_per_therm": 1.7275, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.179, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.7275, "cost_per_load_usd": { "gas": 0.1708, "electric": 0.3176, "heat_pump": 0.1189 }, "cost_per_month_usd": { "gas": 4.03, "electric": 7.49, "heat_pump": 2.8 }, "cost_per_year_usd": { "gas": 48.33, "electric": 89.87, "heat_pump": 33.64 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 43.7, "yearly_gap_usd": 56.23, "electric_over_gas_per_year_usd": 41.54, "gas_price_basis": "eia_average", "yearly_gap_rank": 34 }, "estimated": { "gas_usd_per_therm": 1.179, "cost_per_load_usd": { "gas": 0.1312, "electric": 0.3176, "heat_pump": 0.1189 }, "cost_per_month_usd": { "gas": 3.09, "electric": 7.49, "heat_pump": 2.8 }, "cost_per_year_usd": { "gas": 37.12, "electric": 89.87, "heat_pump": 33.64 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 10.3, "yearly_gap_usd": 56.23, "electric_over_gas_per_year_usd": 52.76, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 38 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.02, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2845, "electric": 0.3176, "heat_pump": 0.1189 }, "cost_per_year_usd": { "propane": 80.51, "electric": 89.87, "heat_pump": 33.64 }, "cheapest": "heat_pump", "status": "assumed" } }, "MO": { "code": "MO", "name": "Missouri", "slug": "missouri", "electricity_cents_per_kwh": 13.95, "gas_usd_per_therm": 1.6611, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.2335, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.6611, "cost_per_load_usd": { "gas": 0.1634, "electric": 0.2999, "heat_pump": 0.1123 }, "cost_per_month_usd": { "gas": 3.85, "electric": 7.07, "heat_pump": 2.65 }, "cost_per_year_usd": { "gas": 46.25, "electric": 84.88, "heat_pump": 31.77 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 45.6, "yearly_gap_usd": 53.11, "electric_over_gas_per_year_usd": 38.64, "gas_price_basis": "eia_average", "yearly_gap_rank": 41 }, "estimated": { "gas_usd_per_therm": 1.2335, "cost_per_load_usd": { "gas": 0.1325, "electric": 0.2999, "heat_pump": 0.1123 }, "cost_per_month_usd": { "gas": 3.13, "electric": 7.07, "heat_pump": 2.65 }, "cost_per_year_usd": { "gas": 37.51, "electric": 84.88, "heat_pump": 31.77 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 18.1, "yearly_gap_usd": 53.11, "electric_over_gas_per_year_usd": 47.37, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 44 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.097, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2091, "electric": 0.2999, "heat_pump": 0.1123 }, "cost_per_year_usd": { "propane": 59.16, "electric": 84.88, "heat_pump": 31.77 }, "cheapest": "heat_pump", "status": "assumed" } }, "MT": { "code": "MT", "name": "Montana", "slug": "montana", "electricity_cents_per_kwh": 13.84, "gas_usd_per_therm": 0.8686, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.694, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 0.8686, "cost_per_load_usd": { "gas": 0.1058, "electric": 0.2976, "heat_pump": 0.1114 }, "cost_per_month_usd": { "gas": 2.5, "electric": 7.02, "heat_pump": 2.63 }, "cost_per_year_usd": { "gas": 29.95, "electric": 84.21, "heat_pump": 31.52 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 5.2, "yearly_gap_usd": 54.26, "electric_over_gas_per_year_usd": 54.26, "gas_price_basis": "eia_average", "yearly_gap_rank": 36 }, "estimated": { "gas_usd_per_therm": 0.694, "cost_per_load_usd": { "gas": 0.0932, "electric": 0.2976, "heat_pump": 0.1114 }, "cost_per_month_usd": { "gas": 2.2, "electric": 7.02, "heat_pump": 2.63 }, "cost_per_year_usd": { "gas": 26.38, "electric": 84.21, "heat_pump": 31.52 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 19.5, "yearly_gap_usd": 57.83, "electric_over_gas_per_year_usd": 57.83, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 36 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.024, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2029, "electric": 0.2976, "heat_pump": 0.1114 }, "cost_per_year_usd": { "propane": 57.43, "electric": 84.21, "heat_pump": 31.52 }, "cheapest": "heat_pump", "status": "assumed" } }, "NE": { "code": "NE", "name": "Nebraska", "slug": "nebraska", "electricity_cents_per_kwh": 12.86, "gas_usd_per_therm": 1.2261, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.7582, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.2261, "cost_per_load_usd": { "gas": 0.1286, "electric": 0.2765, "heat_pump": 0.1035 }, "cost_per_month_usd": { "gas": 3.03, "electric": 6.52, "heat_pump": 2.44 }, "cost_per_year_usd": { "gas": 36.4, "electric": 78.25, "heat_pump": 29.29 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 24.3, "yearly_gap_usd": 48.96, "electric_over_gas_per_year_usd": 41.85, "gas_price_basis": "eia_average", "yearly_gap_rank": 50 }, "estimated": { "gas_usd_per_therm": 0.7582, "cost_per_load_usd": { "gas": 0.0948, "electric": 0.2765, "heat_pump": 0.1035 }, "cost_per_month_usd": { "gas": 2.24, "electric": 6.52, "heat_pump": 2.44 }, "cost_per_year_usd": { "gas": 26.83, "electric": 78.25, "heat_pump": 29.29 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 9.2, "yearly_gap_usd": 51.42, "electric_over_gas_per_year_usd": 51.42, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 47 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 1.606, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.1669, "electric": 0.2765, "heat_pump": 0.1035 }, "cost_per_year_usd": { "propane": 47.23, "electric": 78.25, "heat_pump": 29.29 }, "cheapest": "heat_pump", "status": "assumed" } }, "NV": { "code": "NV", "name": "Nevada", "slug": "nevada", "electricity_cents_per_kwh": 13.36, "gas_usd_per_therm": 1.0807, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 1.0807, "cost_per_load_usd": { "gas": 0.1197, "electric": 0.2873, "heat_pump": 0.1075 }, "cost_per_month_usd": { "gas": 2.82, "electric": 6.77, "heat_pump": 2.54 }, "cost_per_year_usd": { "gas": 33.87, "electric": 81.29, "heat_pump": 30.43 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 11.3, "yearly_gap_usd": 50.86, "electric_over_gas_per_year_usd": 47.43, "gas_price_basis": "eia_average", "yearly_gap_rank": 46 }, "estimated": { "gas_usd_per_therm": 1.0807, "cost_per_load_usd": { "gas": 0.1197, "electric": 0.2873, "heat_pump": 0.1075 }, "cost_per_month_usd": { "gas": 2.82, "electric": 6.77, "heat_pump": 2.54 }, "cost_per_year_usd": { "gas": 33.87, "electric": 81.29, "heat_pump": 30.43 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 11.3, "yearly_gap_usd": 50.86, "electric_over_gas_per_year_usd": 47.43, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 49 }, "cheapest_changes_at_estimated": false, "propane": null }, "NH": { "code": "NH", "name": "New Hampshire", "slug": "new-hampshire", "electricity_cents_per_kwh": 26.67, "gas_usd_per_therm": 1.7911, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 1.7911, "cost_per_load_usd": { "gas": 0.2124, "electric": 0.5734, "heat_pump": 0.2146 }, "cost_per_month_usd": { "gas": 5.01, "electric": 13.52, "heat_pump": 5.06 }, "cost_per_year_usd": { "gas": 60.12, "electric": 162.28, "heat_pump": 60.74 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 1.0, "yearly_gap_usd": 102.16, "electric_over_gas_per_year_usd": 102.16, "gas_price_basis": "eia_average", "yearly_gap_rank": 9 }, "estimated": { "gas_usd_per_therm": 1.7911, "cost_per_load_usd": { "gas": 0.2124, "electric": 0.5734, "heat_pump": 0.2146 }, "cost_per_month_usd": { "gas": 5.01, "electric": 13.52, "heat_pump": 5.06 }, "cost_per_year_usd": { "gas": 60.12, "electric": 162.28, "heat_pump": 60.74 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 1.0, "yearly_gap_usd": 102.16, "electric_over_gas_per_year_usd": 102.16, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 9 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.58, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3658, "electric": 0.5734, "heat_pump": 0.2146 }, "cost_per_year_usd": { "propane": 103.52, "electric": 162.28, "heat_pump": 60.74 }, "cheapest": "heat_pump", "status": "assumed" } }, "NJ": { "code": "NJ", "name": "New Jersey", "slug": "new-jersey", "electricity_cents_per_kwh": 23.78, "gas_usd_per_therm": 1.4227, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.217, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.4227, "cost_per_load_usd": { "gas": 0.1768, "electric": 0.5113, "heat_pump": 0.1914 }, "cost_per_month_usd": { "gas": 4.17, "electric": 12.06, "heat_pump": 4.51 }, "cost_per_year_usd": { "gas": 50.04, "electric": 144.7, "heat_pump": 54.16 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 8.2, "yearly_gap_usd": 94.66, "electric_over_gas_per_year_usd": 94.66, "gas_price_basis": "eia_average", "yearly_gap_rank": 10 }, "estimated": { "gas_usd_per_therm": 1.217, "cost_per_load_usd": { "gas": 0.162, "electric": 0.5113, "heat_pump": 0.1914 }, "cost_per_month_usd": { "gas": 3.82, "electric": 12.06, "heat_pump": 4.51 }, "cost_per_year_usd": { "gas": 45.84, "electric": 144.7, "heat_pump": 54.16 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 18.2, "yearly_gap_usd": 98.86, "electric_over_gas_per_year_usd": 98.86, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 10 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.628, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3606, "electric": 0.5113, "heat_pump": 0.1914 }, "cost_per_year_usd": { "propane": 102.04, "electric": 144.7, "heat_pump": 54.16 }, "cheapest": "heat_pump", "status": "assumed" } }, "NM": { "code": "NM", "name": "New Mexico", "slug": "new-mexico", "electricity_cents_per_kwh": 15.24, "gas_usd_per_therm": 0.9637, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 0.9637, "cost_per_load_usd": { "gas": 0.1171, "electric": 0.3277, "heat_pump": 0.1227 }, "cost_per_month_usd": { "gas": 2.76, "electric": 7.73, "heat_pump": 2.89 }, "cost_per_year_usd": { "gas": 33.13, "electric": 92.73, "heat_pump": 34.71 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 4.8, "yearly_gap_usd": 59.6, "electric_over_gas_per_year_usd": 59.6, "gas_price_basis": "eia_average", "yearly_gap_rank": 26 }, "estimated": { "gas_usd_per_therm": 0.9637, "cost_per_load_usd": { "gas": 0.1171, "electric": 0.3277, "heat_pump": 0.1227 }, "cost_per_month_usd": { "gas": 2.76, "electric": 7.73, "heat_pump": 2.89 }, "cost_per_year_usd": { "gas": 33.13, "electric": 92.73, "heat_pump": 34.71 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 4.8, "yearly_gap_usd": 59.6, "electric_over_gas_per_year_usd": 59.6, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 29 }, "cheapest_changes_at_estimated": false, "propane": null }, "NY": { "code": "NY", "name": "New York", "slug": "new-york", "electricity_cents_per_kwh": 28.39, "gas_usd_per_therm": 1.8138, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.4226, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.8138, "cost_per_load_usd": { "gas": 0.2194, "electric": 0.6104, "heat_pump": 0.2285 }, "cost_per_month_usd": { "gas": 5.17, "electric": 14.4, "heat_pump": 5.39 }, "cost_per_year_usd": { "gas": 62.1, "electric": 172.75, "heat_pump": 64.66 }, "cheapest": 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"heat_pump", "status": "assumed" } }, "NC": { "code": "NC", "name": "North Carolina", "slug": "north-carolina", "electricity_cents_per_kwh": 14.77, "gas_usd_per_therm": 1.5819, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2024", "gas_estimated_usd_per_therm": 1.5072, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.5819, "cost_per_load_usd": { "gas": 0.1603, "electric": 0.3176, "heat_pump": 0.1189 }, "cost_per_month_usd": { "gas": 3.78, "electric": 7.49, "heat_pump": 2.8 }, "cost_per_year_usd": { "gas": 45.35, "electric": 89.87, "heat_pump": 33.64 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 34.8, "yearly_gap_usd": 56.23, "electric_over_gas_per_year_usd": 44.52, "gas_price_basis": "eia_average", "yearly_gap_rank": 34 }, "estimated": { "gas_usd_per_therm": 1.5072, "cost_per_load_usd": { "gas": 0.1549, "electric": 0.3176, "heat_pump": 0.1189 }, "cost_per_month_usd": { "gas": 3.65, "electric": 7.49, "heat_pump": 2.8 }, "cost_per_year_usd": { "gas": 43.82, "electric": 89.87, "heat_pump": 33.64 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 30.3, "yearly_gap_usd": 56.23, "electric_over_gas_per_year_usd": 46.05, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 38 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.358, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3112, "electric": 0.3176, "heat_pump": 0.1189 }, "cost_per_year_usd": { "propane": 88.07, "electric": 89.87, "heat_pump": 33.64 }, "cheapest": "heat_pump", "status": "assumed" } }, "ND": { "code": "ND", "name": "North Dakota", "slug": "north-dakota", "electricity_cents_per_kwh": 12.32, "gas_usd_per_therm": 0.9692, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.5128, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 0.9692, "cost_per_load_usd": { "gas": 0.1084, "electric": 0.2649, "heat_pump": 0.0992 }, "cost_per_month_usd": { "gas": 2.56, "electric": 6.25, "heat_pump": 2.34 }, "cost_per_year_usd": { "gas": 30.67, "electric": 74.96, "heat_pump": 28.06 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 9.3, "yearly_gap_usd": 46.9, "electric_over_gas_per_year_usd": 44.3, "gas_price_basis": "eia_average", "yearly_gap_rank": 51 }, "estimated": { "gas_usd_per_therm": 0.5128, "cost_per_load_usd": { "gas": 0.0754, "electric": 0.2649, "heat_pump": 0.0992 }, "cost_per_month_usd": { "gas": 1.78, "electric": 6.25, "heat_pump": 2.34 }, "cost_per_year_usd": { "gas": 21.34, "electric": 74.96, "heat_pump": 28.06 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 31.5, "yearly_gap_usd": 53.62, "electric_over_gas_per_year_usd": 53.62, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 42 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 1.63, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.1671, "electric": 0.2649, "heat_pump": 0.0992 }, "cost_per_year_usd": { "propane": 47.29, "electric": 74.96, "heat_pump": 28.06 }, "cheapest": "heat_pump", "status": "assumed" } }, "OH": { "code": "OH", "name": "Ohio", "slug": "ohio", "electricity_cents_per_kwh": 18.25, "gas_usd_per_therm": 1.3041, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 0.7139, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.3041, "cost_per_load_usd": { "gas": 0.151, "electric": 0.3924, "heat_pump": 0.1469 }, "cost_per_month_usd": { "gas": 3.56, "electric": 9.25, "heat_pump": 3.46 }, "cost_per_year_usd": { "gas": 42.74, "electric": 111.05, "heat_pump": 41.57 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 2.8, "yearly_gap_usd": 69.48, "electric_over_gas_per_year_usd": 68.31, "gas_price_basis": "eia_average", "yearly_gap_rank": 18 }, "estimated": { "gas_usd_per_therm": 0.7139, "cost_per_load_usd": { "gas": 0.1084, "electric": 0.3924, "heat_pump": 0.1469 }, "cost_per_month_usd": { "gas": 2.56, "electric": 9.25, "heat_pump": 3.46 }, "cost_per_year_usd": { "gas": 30.68, "electric": 111.05, "heat_pump": 41.57 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 35.5, "yearly_gap_usd": 80.37, "electric_over_gas_per_year_usd": 80.37, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 17 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 2.579, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2605, "electric": 0.3924, "heat_pump": 0.1469 }, "cost_per_year_usd": { "propane": 73.73, "electric": 111.05, "heat_pump": 41.57 }, "cheapest": "heat_pump", "status": "assumed" } }, "OK": { "code": "OK", "name": "Oklahoma", "slug": "oklahoma", "electricity_cents_per_kwh": 13.7, "gas_usd_per_therm": 1.3854, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 0.8046, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.3854, "cost_per_load_usd": { "gas": 0.1427, "electric": 0.2946, "heat_pump": 0.1103 }, "cost_per_month_usd": { "gas": 3.37, "electric": 6.95, "heat_pump": 2.6 }, "cost_per_year_usd": { "gas": 40.39, "electric": 83.36, "heat_pump": 31.2 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 29.5, "yearly_gap_usd": 52.16, "electric_over_gas_per_year_usd": 42.97, "gas_price_basis": "eia_average", "yearly_gap_rank": 43 }, "estimated": { "gas_usd_per_therm": 0.8046, "cost_per_load_usd": { "gas": 0.1008, "electric": 0.2946, "heat_pump": 0.1103 }, "cost_per_month_usd": { "gas": 2.38, "electric": 6.95, "heat_pump": 2.6 }, "cost_per_year_usd": { "gas": 28.52, "electric": 83.36, "heat_pump": 31.2 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 9.4, "yearly_gap_usd": 54.84, "electric_over_gas_per_year_usd": 54.84, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 40 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 2.224, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2183, "electric": 0.2946, "heat_pump": 0.1103 }, "cost_per_year_usd": { "propane": 61.78, "electric": 83.36, "heat_pump": 31.2 }, "cheapest": "heat_pump", "status": "assumed" } }, "OR": { "code": "OR", "name": "Oregon", "slug": "oregon", "electricity_cents_per_kwh": 15.5, "gas_usd_per_therm": 1.6172, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.3319, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.6172, "cost_per_load_usd": { "gas": 0.1651, "electric": 0.3333, "heat_pump": 0.1247 }, "cost_per_month_usd": { "gas": 3.89, "electric": 7.86, "heat_pump": 2.94 }, "cost_per_year_usd": { "gas": 46.72, "electric": 94.31, "heat_pump": 35.3 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 32.3, "yearly_gap_usd": 59.01, "electric_over_gas_per_year_usd": 47.6, "gas_price_basis": "eia_average", "yearly_gap_rank": 28 }, "estimated": { "gas_usd_per_therm": 1.3319, "cost_per_load_usd": { "gas": 0.1445, "electric": 0.3333, "heat_pump": 0.1247 }, "cost_per_month_usd": { "gas": 3.41, "electric": 7.86, "heat_pump": 2.94 }, "cost_per_year_usd": { "gas": 40.89, "electric": 94.31, "heat_pump": 35.3 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 15.8, "yearly_gap_usd": 59.01, "electric_over_gas_per_year_usd": 53.43, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 32 }, "cheapest_changes_at_estimated": false, "propane": null }, "PA": { "code": "PA", "name": "Pennsylvania", "slug": "pennsylvania", "electricity_cents_per_kwh": 20.7, "gas_usd_per_therm": 1.5399, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.1625, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.5399, "cost_per_load_usd": { "gas": 0.1757, "electric": 0.4451, "heat_pump": 0.1666 }, "cost_per_month_usd": { "gas": 4.14, "electric": 10.5, "heat_pump": 3.93 }, "cost_per_year_usd": { "gas": 49.72, "electric": 125.96, "heat_pump": 47.15 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 5.5, "yearly_gap_usd": 78.81, "electric_over_gas_per_year_usd": 76.23, "gas_price_basis": "eia_average", "yearly_gap_rank": 15 }, "estimated": { "gas_usd_per_therm": 1.1625, "cost_per_load_usd": { "gas": 0.1484, "electric": 0.4451, "heat_pump": 0.1666 }, "cost_per_month_usd": { "gas": 3.5, "electric": 10.5, "heat_pump": 3.93 }, "cost_per_year_usd": { "gas": 42.01, "electric": 125.96, "heat_pump": 47.15 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 12.2, "yearly_gap_usd": 83.95, "electric_over_gas_per_year_usd": 83.95, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 14 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 2.932, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.296, "electric": 0.4451, "heat_pump": 0.1666 }, "cost_per_year_usd": { "propane": 83.77, "electric": 125.96, "heat_pump": 47.15 }, "cheapest": "heat_pump", "status": "assumed" } }, "RI": { "code": "RI", "name": "Rhode Island", "slug": "rhode-island", "electricity_cents_per_kwh": 29.27, "gas_usd_per_therm": 2.107, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2024", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 2.107, "cost_per_load_usd": { "gas": 0.2433, "electric": 0.6293, "heat_pump": 0.2356 }, "cost_per_month_usd": { "gas": 5.74, "electric": 14.84, "heat_pump": 5.56 }, "cost_per_year_usd": { "gas": 68.87, "electric": 178.1, "heat_pump": 66.66 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 3.3, "yearly_gap_usd": 111.44, "electric_over_gas_per_year_usd": 109.24, "gas_price_basis": "eia_average", "yearly_gap_rank": 7 }, "estimated": { "gas_usd_per_therm": 2.107, "cost_per_load_usd": { "gas": 0.2433, "electric": 0.6293, "heat_pump": 0.2356 }, "cost_per_month_usd": { "gas": 5.74, "electric": 14.84, "heat_pump": 5.56 }, "cost_per_year_usd": { "gas": 68.87, "electric": 178.1, "heat_pump": 66.66 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 3.3, "yearly_gap_usd": 111.44, "electric_over_gas_per_year_usd": 109.24, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 8 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.629, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3778, "electric": 0.6293, "heat_pump": 0.2356 }, "cost_per_year_usd": { "propane": 106.91, "electric": 178.1, "heat_pump": 66.66 }, "cheapest": "heat_pump", "status": "assumed" } }, "SC": { "code": "SC", "name": "South Carolina", "slug": "south-carolina", "electricity_cents_per_kwh": 15.64, "gas_usd_per_therm": 1.637, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2024", "gas_estimated_usd_per_therm": 1.4618, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.637, "cost_per_load_usd": { "gas": 0.1669, "electric": 0.3363, "heat_pump": 0.1259 }, "cost_per_month_usd": { "gas": 3.94, "electric": 7.93, "heat_pump": 2.97 }, "cost_per_year_usd": { "gas": 47.24, "electric": 95.17, "heat_pump": 35.62 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 32.6, "yearly_gap_usd": 59.54, "electric_over_gas_per_year_usd": 47.92, "gas_price_basis": "eia_average", "yearly_gap_rank": 27 }, "estimated": { "gas_usd_per_therm": 1.4618, "cost_per_load_usd": { "gas": 0.1543, "electric": 0.3363, "heat_pump": 0.1259 }, "cost_per_month_usd": { "gas": 3.64, "electric": 7.93, "heat_pump": 2.97 }, "cost_per_year_usd": { "gas": 43.66, "electric": 95.17, "heat_pump": 35.62 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 22.6, "yearly_gap_usd": 59.54, "electric_over_gas_per_year_usd": 51.5, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 30 }, "cheapest_changes_at_estimated": false, "propane": null }, "SD": { "code": "SD", "name": "South Dakota", "slug": "south-dakota", "electricity_cents_per_kwh": 14.2, "gas_usd_per_therm": 0.9904, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.7158, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 0.9904, "cost_per_load_usd": { "gas": 0.1158, "electric": 0.3053, "heat_pump": 0.1143 }, "cost_per_month_usd": { "gas": 2.73, "electric": 7.2, "heat_pump": 2.7 }, "cost_per_year_usd": { "gas": 32.76, "electric": 86.4, "heat_pump": 32.34 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 1.3, "yearly_gap_usd": 54.06, "electric_over_gas_per_year_usd": 53.64, "gas_price_basis": "eia_average", "yearly_gap_rank": 37 }, "estimated": { "gas_usd_per_therm": 0.7158, "cost_per_load_usd": { "gas": 0.0959, "electric": 0.3053, "heat_pump": 0.1143 }, "cost_per_month_usd": { "gas": 2.26, "electric": 7.2, "heat_pump": 2.7 }, "cost_per_year_usd": { "gas": 27.15, "electric": 86.4, "heat_pump": 32.34 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 19.1, "yearly_gap_usd": 59.26, "electric_over_gas_per_year_usd": 59.26, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 31 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 1.79, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.1856, "electric": 0.3053, "heat_pump": 0.1143 }, "cost_per_year_usd": { "propane": 52.52, "electric": 86.4, "heat_pump": 32.34 }, "cheapest": "heat_pump", "status": "assumed" } }, "TN": { "code": "TN", "name": "Tennessee", "slug": "tennessee", "electricity_cents_per_kwh": 13.56, "gas_usd_per_therm": 1.3016, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.9475, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.3016, "cost_per_load_usd": { "gas": 0.1362, "electric": 0.2916, "heat_pump": 0.1091 }, "cost_per_month_usd": { "gas": 3.21, "electric": 6.88, "heat_pump": 2.57 }, "cost_per_year_usd": { "gas": 38.56, "electric": 82.51, "heat_pump": 30.88 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 24.8, "yearly_gap_usd": 51.63, "electric_over_gas_per_year_usd": 43.95, "gas_price_basis": "eia_average", "yearly_gap_rank": 44 }, "estimated": { "gas_usd_per_therm": 0.9475, "cost_per_load_usd": { "gas": 0.1107, "electric": 0.2916, "heat_pump": 0.1091 }, "cost_per_month_usd": { "gas": 2.61, "electric": 6.88, "heat_pump": 2.57 }, "cost_per_year_usd": { "gas": 31.32, "electric": 82.51, "heat_pump": 30.88 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 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"cost_per_year_usd": { "gas": 59.86, "electric": 97.11, "heat_pump": 36.35 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 64.7, "yearly_gap_usd": 60.76, "electric_over_gas_per_year_usd": 37.26, "gas_price_basis": "eia_average", "yearly_gap_rank": 25 }, "estimated": { "gas_usd_per_therm": 1.2523, "cost_per_load_usd": { "gas": 0.1402, "electric": 0.3432, "heat_pump": 0.1284 }, "cost_per_month_usd": { "gas": 3.31, "electric": 8.09, "heat_pump": 3.03 }, "cost_per_year_usd": { "gas": 39.66, "electric": 97.11, "heat_pump": 36.35 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 9.1, "yearly_gap_usd": 60.76, "electric_over_gas_per_year_usd": 57.45, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 26 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.939, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2818, "electric": 0.3432, "heat_pump": 0.1284 }, "cost_per_year_usd": { "propane": 79.75, "electric": 97.11, "heat_pump": 36.35 }, "cheapest": "heat_pump", "status": "assumed" } }, "UT": { "code": "UT", "name": "Utah", "slug": "utah", "electricity_cents_per_kwh": 13.32, "gas_usd_per_therm": 1.0557, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": null, "gas_estimated_reason": "poor_fit", "eia_average": { "gas_usd_per_therm": 1.0557, "cost_per_load_usd": { "gas": 0.1177, "electric": 0.2864, "heat_pump": 0.1072 }, "cost_per_month_usd": { "gas": 2.78, "electric": 6.75, "heat_pump": 2.53 }, "cost_per_year_usd": { "gas": 33.32, "electric": 81.05, "heat_pump": 30.34 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 9.8, "yearly_gap_usd": 50.71, "electric_over_gas_per_year_usd": 47.73, "gas_price_basis": "eia_average", "yearly_gap_rank": 47 }, "estimated": { "gas_usd_per_therm": 1.0557, "cost_per_load_usd": { "gas": 0.1177, "electric": 0.2864, "heat_pump": 0.1072 }, "cost_per_month_usd": { "gas": 2.78, "electric": 6.75, "heat_pump": 2.53 }, "cost_per_year_usd": { "gas": 33.32, "electric": 81.05, "heat_pump": 30.34 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 9.8, "yearly_gap_usd": 50.71, "electric_over_gas_per_year_usd": 47.73, "gas_price_basis": "eia_average_fallback", "yearly_gap_rank": 50 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 2.292, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2225, "electric": 0.2864, "heat_pump": 0.1072 }, "cost_per_year_usd": { "propane": 62.97, "electric": 81.05, "heat_pump": 30.34 }, "cheapest": "heat_pump", "status": "assumed" } }, "VT": { "code": "VT", "name": "Vermont", "slug": "vermont", "electricity_cents_per_kwh": 23.8, "gas_usd_per_therm": 1.7493, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.3174, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.7493, "cost_per_load_usd": { "gas": 0.2005, "electric": 0.5117, "heat_pump": 0.1915 }, "cost_per_month_usd": { "gas": 4.73, "electric": 12.07, "heat_pump": 4.52 }, "cost_per_year_usd": { "gas": 56.73, "electric": 144.82, "heat_pump": 54.21 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 4.7, "yearly_gap_usd": 90.61, "electric_over_gas_per_year_usd": 88.08, "gas_price_basis": "eia_average", "yearly_gap_rank": 12 }, "estimated": { "gas_usd_per_therm": 1.3174, "cost_per_load_usd": { "gas": 0.1693, "electric": 0.5117, "heat_pump": 0.1915 }, "cost_per_month_usd": { "gas": 3.99, "electric": 12.07, "heat_pump": 4.52 }, "cost_per_year_usd": { "gas": 47.91, "electric": 144.82, "heat_pump": 54.21 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 13.2, "yearly_gap_usd": 96.91, "electric_over_gas_per_year_usd": 96.91, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 12 }, "cheapest_changes_at_estimated": true, "propane": { "usd_per_gallon": 3.688, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3654, "electric": 0.5117, "heat_pump": 0.1915 }, "cost_per_year_usd": { "propane": 103.4, "electric": 144.82, "heat_pump": 54.21 }, "cheapest": "heat_pump", "status": "assumed" } }, "VA": { "code": "VA", "name": "Virginia", "slug": "virginia", "electricity_cents_per_kwh": 16.48, "gas_usd_per_therm": 1.7151, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 1.2973, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.7151, "cost_per_load_usd": { "gas": 0.1752, "electric": 0.3543, "heat_pump": 0.1326 }, "cost_per_month_usd": { "gas": 4.13, "electric": 8.36, "heat_pump": 3.13 }, "cost_per_year_usd": { "gas": 49.58, "electric": 100.28, "heat_pump": 37.53 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 32.1, "yearly_gap_usd": 62.74, "electric_over_gas_per_year_usd": 50.7, "gas_price_basis": "eia_average", "yearly_gap_rank": 22 }, "estimated": { "gas_usd_per_therm": 1.2973, "cost_per_load_usd": { "gas": 0.145, "electric": 0.3543, "heat_pump": 0.1326 }, "cost_per_month_usd": { "gas": 3.42, "electric": 8.36, "heat_pump": 3.13 }, "cost_per_year_usd": { "gas": 41.04, "electric": 100.28, "heat_pump": 37.53 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 9.3, "yearly_gap_usd": 62.74, "electric_over_gas_per_year_usd": 59.23, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 24 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 3.461, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.3247, "electric": 0.3543, "heat_pump": 0.1326 }, "cost_per_year_usd": { "propane": 91.88, "electric": 100.28, "heat_pump": 37.53 }, "cheapest": "heat_pump", "status": "assumed" } }, "WA": { "code": "WA", "name": "Washington", "slug": "washington", "electricity_cents_per_kwh": 14.12, "gas_usd_per_therm": 1.6077, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 1.2135, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.6077, "cost_per_load_usd": { "gas": 0.1601, "electric": 0.3036, "heat_pump": 0.1136 }, "cost_per_month_usd": { "gas": 3.78, "electric": 7.16, "heat_pump": 2.68 }, "cost_per_year_usd": { "gas": 45.31, "electric": 85.92, "heat_pump": 32.16 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 40.9, "yearly_gap_usd": 53.76, "electric_over_gas_per_year_usd": 40.61, "gas_price_basis": "eia_average", "yearly_gap_rank": 39 }, "estimated": { "gas_usd_per_therm": 1.2135, "cost_per_load_usd": { "gas": 0.1316, "electric": 0.3036, "heat_pump": 0.1136 }, "cost_per_month_usd": { "gas": 3.1, "electric": 7.16, "heat_pump": 2.68 }, "cost_per_year_usd": { "gas": 37.25, "electric": 85.92, "heat_pump": 32.16 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 15.8, "yearly_gap_usd": 53.76, "electric_over_gas_per_year_usd": 48.67, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 41 }, "cheapest_changes_at_estimated": false, "propane": null }, "WV": { "code": "WV", "name": "West Virginia", "slug": "west-virginia", "electricity_cents_per_kwh": 15.48, "gas_usd_per_therm": 1.2695, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 1.0216, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.2695, "cost_per_load_usd": { "gas": 0.1399, "electric": 0.3328, "heat_pump": 0.1246 }, "cost_per_month_usd": { "gas": 3.3, "electric": 7.85, "heat_pump": 2.94 }, "cost_per_year_usd": { "gas": 39.59, "electric": 94.19, "heat_pump": 35.26 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 12.3, "yearly_gap_usd": 58.94, "electric_over_gas_per_year_usd": 54.6, "gas_price_basis": "eia_average", "yearly_gap_rank": 29 }, "estimated": { "gas_usd_per_therm": 1.0216, "cost_per_load_usd": { "gas": 0.122, "electric": 0.3328, "heat_pump": 0.1246 }, "cost_per_month_usd": { "gas": 2.88, "electric": 7.85, "heat_pump": 2.94 }, "cost_per_year_usd": { "gas": 34.53, "electric": 94.19, "heat_pump": 35.26 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 2.1, "yearly_gap_usd": 59.67, "electric_over_gas_per_year_usd": 59.67, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 28 }, "cheapest_changes_at_estimated": true, "propane": null }, "WI": { "code": "WI", "name": "Wisconsin", "slug": "wisconsin", "electricity_cents_per_kwh": 18.74, "gas_usd_per_therm": 1.0238, "gas_basis": "calendar_year", "gas_period_label": "calendar year 2025", "gas_estimated_usd_per_therm": 0.8554, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.0238, "cost_per_load_usd": { "gas": 0.1323, "electric": 0.4029, "heat_pump": 0.1508 }, "cost_per_month_usd": { "gas": 3.12, "electric": 9.5, "heat_pump": 3.56 }, "cost_per_year_usd": { "gas": 37.44, "electric": 114.03, "heat_pump": 42.68 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 14.0, "yearly_gap_usd": 76.58, "electric_over_gas_per_year_usd": 76.58, "gas_price_basis": "eia_average", "yearly_gap_rank": 16 }, "estimated": { "gas_usd_per_therm": 0.8554, "cost_per_load_usd": { "gas": 0.1202, "electric": 0.4029, "heat_pump": 0.1508 }, "cost_per_month_usd": { "gas": 2.83, "electric": 9.5, "heat_pump": 3.56 }, "cost_per_year_usd": { "gas": 34.0, "electric": 114.03, "heat_pump": 42.68 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 25.5, "yearly_gap_usd": 80.03, "electric_over_gas_per_year_usd": 80.03, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 18 }, "cheapest_changes_at_estimated": false, "propane": { "usd_per_gallon": 1.909, "period_start": "2025-10", "period_end": "2026-03", "gallons_per_cycle": 0.07897, "cost_per_load_usd": { "propane": 0.2091, "electric": 0.4029, "heat_pump": 0.1508 }, "cost_per_year_usd": { "propane": 59.18, "electric": 114.03, "heat_pump": 42.68 }, "cheapest": "heat_pump", "status": "assumed" } }, "WY": { "code": "WY", "name": "Wyoming", "slug": "wyoming", "electricity_cents_per_kwh": 14.01, "gas_usd_per_therm": 1.2336, "gas_basis": "trailing_12_months", "gas_period_label": "12 months to Jul 2026", "gas_estimated_usd_per_therm": 0.7818, "gas_estimated_reason": null, "eia_average": { "gas_usd_per_therm": 1.2336, "cost_per_load_usd": { "gas": 0.1327, "electric": 0.3012, "heat_pump": 0.1128 }, "cost_per_month_usd": { "gas": 3.13, "electric": 7.1, "heat_pump": 2.66 }, "cost_per_year_usd": { "gas": 37.56, "electric": 85.25, "heat_pump": 31.91 }, "cheapest": "heat_pump", "dearest": "electric", "margin_pct": 17.7, "yearly_gap_usd": 53.34, "electric_over_gas_per_year_usd": 47.68, "gas_price_basis": "eia_average", "yearly_gap_rank": 40 }, "estimated": { "gas_usd_per_therm": 0.7818, "cost_per_load_usd": { "gas": 0.1001, "electric": 0.3012, "heat_pump": 0.1128 }, "cost_per_month_usd": { "gas": 2.36, "electric": 7.1, "heat_pump": 2.66 }, "cost_per_year_usd": { "gas": 28.33, "electric": 85.25, "heat_pump": 31.91 }, "cheapest": "gas", "dearest": "electric", "margin_pct": 12.6, "yearly_gap_usd": 56.92, "electric_over_gas_per_year_usd": 56.92, "gas_price_basis": "estimated_per_therm", "yearly_gap_rank": 37 }, "cheapest_changes_at_estimated": true, "propane": null } }, "missing": [], "counts": { "eia_average": { "gas": 16, "electric": 0, "heat_pump": 35, "total": 51 }, "estimated": { "gas": 30, "electric": 0, "heat_pump": 21, "total": 51, "states_on_eia_average": [ "AR", "CA", "HI", "MA", "NV", "NH", "NM", "RI", "UT" ] }, "cheapest_changes_at_estimated": 14, "propane_states": 38 }, "payback_grid": { "yearly_saving_usd": [ 20, 30, 50, 70, 100, 150 ], "extra_cost_usd": [ 200, 500, 1000, 1500, 2500 ], "years": [ [ 10.0, 6.7, 4.0, 2.9, 2.0, 1.3 ], [ 25.0, 16.7, 10.0, 7.1, 5.0, 3.3 ], [ 50.0, 33.3, 20.0, 14.3, 10.0, 6.7 ], [ 75.0, 50.0, 30.0, 21.4, 15.0, 10.0 ], [ 125.0, 83.3, 50.0, 35.7, 25.0, 16.7 ] ] } }