How much does it cost to run a heat pump water heater?
The same heat pump water heater costs $479 a year in Hawaii (40.59 ¢ per kWh) and $139 in North Dakota (11.81 ¢), a gap of $340 or 3.4 times. Model range at 17.30 ¢: $146.36 to $239.95 a year (602 listed).
Map
- $139 to $156
- $156 to $177
- $177 to $192
- $192 to $271
- $271 to $479
Darker = costlier to run heat pump water heater. Click a state for its hub.
Your numbers
All 51 states
| 1 | Hawaii | 40.59 | $479.37 | $343.39 | $562.98 | $39.95 | 742 |
|---|---|---|---|---|---|---|---|
| 2 | California | 32.54 | $384.30 | $275.29 | $451.33 | $32.02 | 211 |
| 3 | Massachusetts | 30.48 | $359.97 | $257.86 | $422.76 | $30.00 | 441 |
| 4 | Rhode Island | 29.46 | $347.92 | $249.23 | $408.61 | $28.99 | 449 |
| 5 | Connecticut | 29.38 | $346.98 | $248.55 | $407.50 | $28.91 | 288 |
| 6 | Maine | 27.78 | $328.08 | $235.02 | $385.31 | $27.34 | 167 |
| 7 | New York | 26.39 | $311.67 | $223.26 | $366.03 | $25.97 | 249 |
| 8 | Alaska | 26.09 | $308.12 | $220.72 | $361.87 | $25.68 | 434 |
| 9 | New Hampshire | 24.56 | $290.05 | $207.78 | $340.65 | $24.17 | 146 |
| 10 | Vermont | 22.92 | $270.69 | $193.90 | $317.90 | $22.56 | 23 |
| 11 | New Jersey | 22.63 | $267.26 | $191.45 | $313.88 | $22.27 | 251 |
| 12 | District of Columbia | 21.94 | $259.11 | $185.61 | $304.31 | $21.59 | 211 |
| 13 | Michigan | 20.01 | $236.32 | $169.28 | $277.54 | $19.69 | 425 |
| 14 | Maryland | 19.48 | $230.06 | $164.80 | $270.19 | $19.17 | 279 |
| 15 | Pennsylvania | 19.30 | $227.93 | $163.28 | $267.69 | $18.99 | 346 |
| 16 | Wisconsin | 18.16 | $214.47 | $153.63 | $251.88 | $17.87 | 620 |
| 17 | Illinois | 17.69 | $208.92 | $149.66 | $245.36 | $17.41 | 253 |
| 18 | Delaware | 17.13 | $202.31 | $144.92 | $237.59 | $16.86 | 377 |
| 19 | Ohio | 16.96 | $200.30 | $143.48 | $235.24 | $16.69 | 570 |
| 20 | Indiana | 16.23 | $191.68 | $137.31 | $225.11 | $15.97 | 781 |
| 21 | Alabama | 16.10 | $190.14 | $136.21 | $223.31 | $15.85 | 381 |
| 22 | Colorado | 15.85 | $187.19 | $134.09 | $219.84 | $15.60 | 581 |
| 23 | Minnesota | 15.82 | $186.83 | $133.84 | $219.42 | $15.57 | 400 |
| 24 | Texas | 15.47 | $182.70 | $130.88 | $214.57 | $15.23 | 412 |
| 25 | West Virginia | 15.41 | $181.99 | $130.37 | $213.74 | $15.17 | 1,047 |
| 26 | Oregon | 15.37 | $181.52 | $130.03 | $213.18 | $15.13 | 195 |
| 27 | Arizona | 15.32 | $180.93 | $129.61 | $212.49 | $15.08 | 368 |
| 28 | Virginia | 15.28 | $180.46 | $129.27 | $211.93 | $15.04 | 288 |
| 29 | Florida | 15.24 | $179.98 | $128.93 | $211.38 | $15.00 | 421 |
| 30 | New Mexico | 15.08 | $178.09 | $127.58 | $209.16 | $14.84 | 413 |
| 31 | South Carolina | 14.96 | $176.68 | $126.56 | $207.50 | $14.72 | 298 |
| 32 | Georgia | 14.73 | $173.96 | $124.62 | $204.31 | $14.50 | 382 |
| 33 | Kansas | 14.56 | $171.95 | $123.18 | $201.95 | $14.33 | 390 |
| 34 | Mississippi | 14.03 | $165.69 | $118.69 | $194.60 | $13.81 | 443 |
| 35 | North Carolina | 14.02 | $165.58 | $118.61 | $194.46 | $13.80 | 334 |
| 36 | Iowa | 13.72 | $162.03 | $116.07 | $190.30 | $13.50 | 338 |
| 37 | Missouri | 13.49 | $159.32 | $114.13 | $187.11 | $13.28 | 774 |
| 38 | South Dakota | 13.38 | $158.02 | $113.19 | $185.58 | $13.17 | 179 |
| 39 | Wyoming | 13.38 | $158.02 | $113.19 | $185.58 | $13.17 | 975 |
| 40 | Kentucky | 13.24 | $156.36 | $112.01 | $183.64 | $13.03 | 929 |
| 41 | Tennessee | 13.18 | $155.66 | $111.50 | $182.81 | $12.97 | 352 |
| 42 | Nevada | 13.15 | $155.30 | $111.25 | $182.39 | $12.94 | 344 |
| 43 | Oklahoma | 13.12 | $154.95 | $111.00 | $181.97 | $12.91 | 347 |
| 44 | Washington | 13.11 | $154.83 | $110.91 | $181.84 | $12.90 | 142 |
| 45 | Utah | 13.07 | $154.36 | $110.57 | $181.28 | $12.86 | 757 |
| 46 | Montana | 12.98 | $153.29 | $109.81 | $180.03 | $12.77 | 566 |
| 47 | Arkansas | 12.84 | $151.64 | $108.63 | $178.09 | $12.64 | 532 |
| 48 | Louisiana | 12.57 | $148.45 | $106.34 | $174.35 | $12.37 | 408 |
| 49 | Nebraska | 12.34 | $145.74 | $104.40 | $171.16 | $12.14 | 545 |
| 50 | Idaho | 11.82 | $139.59 | $100.00 | $163.94 | $11.63 | 168 |
| 51 | North Dakota | 11.81 | $139.48 | $99.91 | $163.80 | $11.62 | 690 |
1,181 kWh a year times each state's 2025 home price (602 heat pump models, ENERGY STAR data as of 2 Oct 2026).
CSVPay less
- Model spread: 10th percentile 846 kWh, 90th 1,387; the 541 kWh gap is $93.59 a year at 17.30 ¢ and $219.59 at 40.59 ¢ (Hawaii).
- Location: 3.4 times between Hawaii ($479.37) and North Dakota ($139.48); 100% of utilities in Hawaii list a time-of-use rate (EIA-861).
Where the kWh comes from
Electric use per year on the ENERGY STAR listing for heat pump water heaters. Median 1,181 kWh, 10th to 90th percentile 846 to 1,387, range 643 to 1,741, 602 heat pump models. Certified models only. Method: appliance hub.
Sources
| Source | Retrieved |
|---|---|
| ENERGY STAR Certified products | 2 Oct 2026 |
| EIA retail sales | 1 Oct 2026 |
| EPA eGRID2023 | 2 Oct 2026 |
| DOE formula | 2 Oct 2026 |
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Questions
Cost to run a heat pump water heater for a year?
$204.31 at 17.30 ¢ and 1,181 kWh; $139.48 in North Dakota to $479.37 in Hawaii.
Most expensive state for a heat pump water heater?
Hawaii: $479.37 at 40.59 ¢.
Cheapest state for a heat pump water heater?
North Dakota: $139.48 at 11.81 ¢.
kWh used by a heat pump water heater?
Median 1,181; 10th to 90th percentile 846 to 1,387; 602 heat pump models.
Does the model matter for a heat pump water heater?
Yes: 90th against 10th percentile is $93.59 a year at the U.S. price.
CO2 from a heat pump water heater?
411 kg a year at 0.348 kg per kWh (U.S.).
Why would my heat pump water heater bill differ?
Median 1,181 kWh is for new certified models; 17.30 ¢ is an average.
Fixed charges in the heat pump water heater cost?
Not included.