Cost to heat a home in California: electricity vs gas
With electricity at 32.54 cents per kWh and natural gas at $22.01 per Mcf in 2025, one MMBtu of heat costs $22.36 from a gas furnace, $31.79 from a heat pump and $95.37 from resistance heating in California.
In California many households choose their energy supplier. How to compare.
Your California heating cost
California inputs: 32.54 ¢ per kWh, $22.01 per Mcf, fuel only; the need is an illustration. Method.
The numbers
- Electricity 2025
- 32.54 ¢/kWhrank 2 of 45 states by price
- Natural gas 2025
- $22.01 per Mcfrank 4 of 45 states by gas price
- Gas furnace
- $22.36 per MMBtu95% efficiency, rank 4 of 45
- Heat pump
- $31.79 per MMBturank 44 of 45 states, COP 3.0 assumed
- Electric resistance
- $95.37 per MMBtu4.3 times a furnace
- Break-even COP
- 4.26a heat pump above it beats gas; rank 37 of 45
- Annual cost at 50 MMBtu
- $1,589 heat pumpfuel only
- Homes heated by electricity
- 29%62% utility gas, 3% propane, 0% oil
- Electricity since 2024
- +1.8%
- Gas since 2024
- +15.0%
- 2026 to date
- power +2.5%, gas -0.5%January to Jul against 2025
- Winter load
- +15% over spring and fallsummer +36%: a summer-peaking state
- Heating degree-days, normal year
- 3,2531991 to 2020; 2025 had 2,525, rank 35 of 42 states by normal HDD
- Occupied homes in California (ACS 2023)
- 13,434,8473,877,352 electric, 8,288,860 utility gas, 468,722 propane, 29,683 oil; 2 of 58 counties are over half electric
- Generating capacity in California
- 92,509 MWEIA-860 2025; 3,685 MW under construction
California charts
One MMBtu of heat in California
$22.36 gas, $31.79 heat pump, $95.37 resistance.
California, Cost of one MMBtu of heat in California: EIA retail sales and natural gas prices.
CSVPrices since 2015, California
Electricity $95.37 and gas $21 per MMBtu of energy in 2025.
Fuel cost per MMBtu, California, 2015 to 2025: 11 rows
| Year | California electricity | California gas |
|---|---|---|
| 2015 | 49.8 | 11.0 |
| 2016 | 51.0 | 11.4 |
| 2017 | 53.7 | 12.1 |
| 2018 | 55.2 | 11.9 |
| 2019 | 56.1 | 12.5 |
| 2020 | 59.9 | 13.6 |
| 2021 | 66.9 | 15.8 |
| 2022 | 75.7 | 19.4 |
| 2023 | 86.5 | 21.1 |
| 2024 | 93.7 | 18.5 |
| 2025 | 95.4 | 21.2 |
11 rows from EIA retail sales and natural gas prices.
CSVHow California heats
29% electric.
California, How California homes are heated: Census ACS 2023, table B25040.
CSVBreak-even COP by month, California
3.81 to 4.93 across the months shown.
Break-even COP by month, California: 12 rows
| Month | 2025 | 2026 |
|---|---|---|
| Jan | 4.18 | 3.81 |
| Feb | 4.07 | 4.27 |
| Mar | 4.20 | 4.64 |
| Apr | 4.55 | No data |
| May | 4.58 | No data |
| Jun | 4.51 | 4.93 |
| Jul | 4.25 | 4.54 |
| Aug | 4.13 | No data |
| Sep | 4.22 | No data |
| Oct | 4.44 | No data |
| Nov | 4.15 | No data |
| Dec | 4.21 | No data |
12 rows from EIA retail sales.
CSVHow California homes heat
| California main fuel | California homes | California share | California rank among states |
|---|---|---|---|
| Electricity | 3,877,352 | 28.9% | 26 of 45 |
| Utility gas | 8,288,860 | 61.7% | 11 of 45 |
| Propane | 468,722 | 3.5% | 33 of 45 |
| Fuel oil | 29,683 | 0.2% | 28 of 45 |
| Wood | 176,013 | 1.3% | 25 of 45 |
California has 92,509 MW of operable generating capacity (EIA-860, 2025), largest in natural gas at 40,222 MW; 3,685 MW is under construction and 7,121 MW planned, which matters if heat pumps add winter load.
41 California utilities report meters to EIA-861: 86.6% of 15,054,370 home meters are smart (AMI), 24 offer a home time-of-use rate and 5,126,006 homes are on dynamic pricing.
California counties by electric heating
Largest electric share first, then the smallest; 20 counties.
| California county | California residents | California electric heat | California utility gas | California propane | California median income |
|---|---|---|---|---|---|
| Del Norte County | 27,293 | 62% | 5% | 3% | $66,780 |
| Imperial County | 179,319 | 53% | 40% | 2% | $56,393 |
| Monterey County | 435,834 | 43% | 47% | 5% | $94,486 |
| Lake County | 68,139 | 40% | 5% | 25% | $58,738 |
| Sacramento County | 1,584,047 | 38% | 58% | 2% | $88,724 |
| Colusa County | 21,895 | 37% | 44% | 7% | $75,149 |
| Fresno County | 1,012,152 | 35% | 54% | 5% | $71,434 |
| Santa Clara County | 1,903,297 | 35% | 60% | 2% | $159,674 |
| San Francisco County | 836,321 | 35% | 56% | 2% | $141,446 |
| San Diego County | 3,282,782 | 34% | 55% | 4% | $102,285 |
| Mendocino County | 90,709 | 21% | 30% | 22% | $64,688 |
| San Bernardino County | 2,187,816 | 21% | 71% | 3% | $82,184 |
| Tuolumne County | 54,873 | 21% | 8% | 41% | $72,259 |
| San Benito County | 66,056 | 21% | 63% | 8% | $108,289 |
| San Luis Obispo County | 281,486 | 20% | 66% | 8% | $93,398 |
| Ventura County | 838,259 | 19% | 73% | 2% | $107,327 |
| Humboldt County | 135,418 | 17% | 55% | 8% | $61,135 |
| Lassen County | 31,177 | 17% | 21% | 12% | $64,395 |
| Nevada County | 102,452 | 16% | 36% | 33% | $84,905 |
| Calaveras County | 45,995 | 15% | 20% | 39% | $79,877 |
California month by month
| Month | California electricity ¢/kWh | California gas $/Mcf | Heat pump $/MMBtu | Gas furnace $/MMBtu | California break-even COP |
|---|---|---|---|---|---|
| Jul 2026 | 33.61 | $21.35 | $32.8 | $21.7 | 4.54 |
| Jun 2026 | 34.74 | $20.33 | $33.9 | $20.7 | 4.93 |
| Mar 2026 | 33.35 | $20.72 | $32.6 | $21.1 | 4.64 |
| Feb 2026 | 33.22 | $22.45 | $32.5 | $22.8 | 4.27 |
| Jan 2026 | 30.29 | $22.96 | $29.6 | $23.3 | 3.81 |
| Dec 2025 | 34.71 | $23.78 | $33.9 | $24.2 | 4.21 |
| Nov 2025 | 31.89 | $22.19 | $31.2 | $22.5 | 4.15 |
| Oct 2025 | 33.60 | $21.81 | $32.8 | $22.2 | 4.44 |
| Sep 2025 | 32.04 | $21.89 | $31.3 | $22.2 | 4.22 |
| Aug 2025 | 31.65 | $22.09 | $30.9 | $22.4 | 4.13 |
| Jul 2025 | 32.66 | $22.17 | $31.9 | $22.5 | 4.25 |
| Jun 2025 | 33.59 | $21.48 | $32.8 | $21.8 | 4.51 |
| May 2025 | 33.29 | $20.98 | $32.5 | $21.3 | 4.58 |
| Apr 2025 | 33.82 | $21.43 | $33.0 | $21.8 | 4.55 |
| Mar 2025 | 32.48 | $22.29 | $31.7 | $22.6 | 4.20 |
| Feb 2025 | 31.72 | $22.50 | $31.0 | $22.9 | 4.07 |
| Jan 2025 | 30.28 | $20.88 | $29.6 | $21.2 | 4.18 |
Heating season
A normal year in California brings 3,253 heating degree-days and 704 cooling degree-days (1991 to 2020). Months above 300 heating degree-days in a normal year: Jan, Feb, Mar, Apr, Nov, Dec. 2025 had 2,525, 22% below normal; the highest of 2015 to 2025 was 3,085 in 2023.
California degree-days by year
Heating and cooling degree-days, California, 2015 to 2025: 11 rows
| California year | Heating (HDD) | Cooling (CDD) | Normal HDD | Normal CDD |
|---|---|---|---|---|
| 2015 | 2347 | 1157 | 3253 | 704 |
| 2016 | 2445 | 1023 | 3253 | 704 |
| 2017 | 2449 | 1167 | 3253 | 704 |
| 2018 | 2546 | 1101 | 3253 | 704 |
| 2019 | 2950 | 896 | 3253 | 704 |
| 2020 | 2570 | 1206 | 3253 | 704 |
| 2021 | 2689 | 1146 | 3253 | 704 |
| 2022 | 2672 | 1205 | 3253 | 704 |
| 2023 | 3085 | 866 | 3253 | 704 |
| 2024 | 2717 | 1192 | 3253 | 704 |
| 2025 | 2525 | 951 | 3253 | 704 |
NOAA nClimDiv degree-days for California, 2015 to 2025, pulled 2 Oct 2026.
CSVHeating degree-days by month
Heating degree-days by month, California: 12 rows
| Month | 2025 | Normal |
|---|---|---|
| Jan | 509 | 582 |
| Feb | 372 | 475 |
| Mar | 437 | 453 |
| Apr | 281 | 333 |
| May | 120 | 196 |
| Jun | 27 | 66 |
| Jul | 6 | 7 |
| Aug | 0 | 8 |
| Sep | 12 | 38 |
| Oct | 139 | 165 |
| Nov | 262 | 372 |
| Dec | 360 | 558 |
NOAA nClimDiv degree-days for California by month, 2025.
CSVCalifornia, 2025 by month: 12 rows
| Month | HDD 2025 | HDD normal | CDD 2025 | CDD normal |
|---|---|---|---|---|
| Jan | 509 | 582 | 0 | 0 |
| Feb | 372 | 475 | 0 | 0 |
| Mar | 437 | 453 | 1 | 2 |
| Apr | 281 | 333 | 12 | 8 |
| May | 120 | 196 | 56 | 30 |
| Jun | 27 | 66 | 149 | 93 |
| Jul | 6 | 7 | 202 | 215 |
| Aug | 0 | 8 | 300 | 207 |
| Sep | 12 | 38 | 182 | 121 |
| Oct | 139 | 165 | 36 | 26 |
| Nov | 262 | 372 | 8 | 2 |
| Dec | 360 | 558 | 5 | 0 |
NOAA nClimDiv degree-days for California, 2025 by month.
CSVAnalyst note
Price change stands out in California: electricity +1.8% since 2024, rank 43 of 45. Main heating fuel in California is utility gas (62% of homes); electricity heats 29% and utility gas 62%. Since 2024 electricity moved +1.8% and gas +15.0%; in 2026 to date power is +2.5% and gas -0.5% on a year earlier. A COP 3.0 heat pump trails a furnace here by $9.43 per MMBtu; the break-even COP of 4.26 ranks 37 of 45. The most electric counties of California with 20,000+ residents are led by Del Norte County at 62% of homes. A normal California year has 3,253 heating degree-days, and 2025 had 2,525, so heating demand ran 22% below the 1991 to 2020 normal.
States with a similar break-even
Questions on heating in California
How fast did California electricity prices move since 2024?
+1.8% from 31.97 to 32.54 cents per kWh, rank 43 of 45 states by change.
Is a heat pump cheaper than gas in California?
No on fuel cost: $31.79 per MMBtu against $22.36 for gas, break-even COP 4.26.
Which California county has the most electric heating?
Del Norte County: 62% of 9,621 homes among counties with 20,000+ residents, median income $66,780.
What share of California homes heat with electricity?
29% of 13,434,847 occupied homes in ACS 2023, against 62% with utility gas.
Where does California rank on heat pump cost?
44 of 45 at $31.79 per MMBtu; North Dakota is lowest at $11.54.
Is California a winter or summer electricity state?
Summer use runs +36% over spring and fall, winter +15%: cooling drives the load.
Did gas or electricity get more expensive in California in 2026?
January to Jul: electricity +2.5%, gas -0.5% on a year earlier.
How much generating capacity does California have?
92,509 MW operable in 2025, 3,685 MW under construction, 7,121 MW planned (EIA-860).
How many California homes have smart meters?
86.6% of 15,054,370 home meters, 24 of 41 reporting utilities offer time-of-use.
More on California
- California electricity ratesutilities, map, outages
- Average electric bill in Californiatypical bill by month