Best states for rooftop solar: what 1 kW of panels earns
One kW of rooftop panels makes about 1,714 kWh a year in Hawaii, worth $692 at 40.40 ¢. In Washington the same panels make 1,062 kWh but are worth $140 at 13.17 ¢. The highest output per kW is in Nevada (1,818 kWh); price, not sun, drives most of the ranking. Valuing every kWh at the full retail price assumes full net metering, which many states no longer give.
Find your state
Pick a state to see where it ranks.
- $140 to $184
- $184 to $208
- $208 to $239
- $239 to $298
- $298 to $692
Hawaii $692 first, Washington $140 last: the map links to each state.
All 51 ranked places
The table, sortable
| 1 | Hawaii | 692 | 1,714 | 40.40 | 220.5 | 5.4 | Home systems 220.5, +1332% vs median; $164 ahead of California; Home price 40.40, +163% vs median |
|---|---|---|---|---|---|---|---|
| 2 | California | 529 | 1,687 | 31.35 | 147.7 | 6.1 | Home systems 147.7, +859% vs median; $164 apart from Hawaii; Home price 31.35, +104% vs median |
| 3 | Massachusetts | 388 | 1,277 | 30.41 | 64.9 | 6.9 | Home price 30.41, +98% vs median; $141 apart from California; Median household 101,341, +34% vs median |
| 4 | Rhode Island | 382 | 1,295 | 29.48 | 37.9 | 6.1 | $7 apart from Massachusetts; Home price 29.48, +92% vs median |
| 5 | Connecticut | 376 | 1,282 | 29.31 | 66.9 | 7.7 | Home price 29.31, +90% vs median; $6 apart from Rhode Island; Median household 93,760, +24% vs median |
| 6 | Maine | 351 | 1,267 | 27.69 | 20.6 | 8.0 | Home price 27.69, +80% vs median; $25 apart from Connecticut; Cooling degree-days 239, -73% vs median |
| 7 | New York | 336 | 1,273 | 26.39 | 30.7 | 6.9 | Home price 26.39, +71% vs median; $15 apart from Maine; Output 1,273, -7% vs median |
| 8 | New Hampshire | 309 | 1,258 | 24.53 | 34.6 | 8.1 | Median household 95,628, +27% vs median; $27 apart from New York; Home price 24.53, +59% vs median |
| 9 | District of Columbia | 305 | 1,392 | 21.92 | No data | No data | $4 apart from New Hampshire; Median household 106,287, +41% vs median |
| 10 | New Jersey | 298 | 1,324 | 22.48 | 54.0 | 7.4 | Median household 101,050, +34% vs median; $7 apart from District of Columbia; Home price 22.48, +46% vs median |
| 11 | Vermont | 279 | 1,225 | 22.79 | 29.2 | 11.0 | Cooling degree-days 223, -74% vs median; $18 apart from New Jersey; Output 1,225, -11% vs median |
| 12 | Maryland | 271 | 1,388 | 19.53 | 44.1 | 7.8 | $8 apart from Vermont; Median household 101,652, +35% vs median |
| 13 | Arizona | 267 | 1,750 | 15.26 | 101.2 | 8.1 | Cooling degree-days 3,063, +251% vs median; $4 apart from Maryland; Output 1,750, +28% vs median |
| 14 | Alaska | 266 | 1,017 | 26.11 | 9.3 | 5.4 | Output 1,017, -26% vs median; $1 apart from Arizona; Home price 26.11, +70% vs median |
| 15 | New Mexico | 265 | 1,784 | 14.85 | 53.6 | 6.2 | Output 1,784, +30% vs median; $1 apart from Alaska; Median household 62,125, -18% vs median |
| 16 | Michigan | 256 | 1,280 | 20.03 | 5.7 | 6.6 | $9 apart from New Mexico; Output 1,280, -7% vs median |
| 17 | Nevada | 241 | 1,818 | 13.26 | 102.4 | 7.6 | Output 1,818, +33% vs median; $15 apart from Michigan; Home systems 102.4, +565% vs median |
| 18 | Colorado | 241 | 1,534 | 15.69 | 71.3 | 6.0 | Median household 92,470, +22% vs median; $0 apart from Nevada; Home systems 71.3, +363% vs median |
| 19 | Wisconsin | 239 | 1,324 | 18.08 | 6.7 | 7.3 | $1 apart from Colorado; Cooling degree-days 513, -41% vs median |
| 20 | Pennsylvania | 239 | 1,241 | 19.29 | 14.8 | 8.3 | $0 apart from Wisconsin; Output 1,241, -10% vs median |
| 21 | Delaware | 237 | 1,383 | 17.15 | 29.9 | 8.0 | $2 apart from Pennsylvania; Median household 82,855, +10% vs median |
| 22 | Florida | 235 | 1,546 | 15.21 | 27.8 | 9.3 | Cooling degree-days 3,581, +310% vs median; $2 apart from Delaware; Output 1,546, +13% vs median |
| 23 | Illinois | 231 | 1,308 | 17.67 | 25.2 | 7.4 | $4 apart from Florida; Output 1,308, -5% vs median |
| 24 | Texas | 231 | 1,498 | 15.40 | 10.9 | 8.0 | $0 apart from Illinois; Cooling degree-days 2,808, +222% vs median |
| 25 | Alabama | 223 | 1,383 | 16.09 | 0.0 | 12.7 | Median household 62,027, -18% vs median; $8 apart from Texas; Cooling degree-days 1,946, +123% vs median |
| 26 | South Carolina | 221 | 1,463 | 15.12 | 9.9 | 7.3 | Cooling degree-days 1,945, +123% vs median; $1 apart from Alabama; Median household 66,818, -12% vs median |
| 27 | Indiana | 219 | 1,370 | 15.96 | 3.7 | 8.7 | $3 apart from South Carolina; Home systems 3.7, -76% vs median |
| 28 | Minnesota | 214 | 1,353 | 15.83 | 9.2 | 9.0 | Cooling degree-days 455, -48% vs median; $4 apart from Indiana; Median household 87,556, +16% vs median |
| 29 | Kansas | 214 | 1,482 | 14.44 | 5.7 | 7.5 | $0 apart from Minnesota; Home systems 5.7, -63% vs median |
| 30 | Ohio | 210 | 1,244 | 16.90 | 4.8 | 7.4 | $4 apart from Kansas; Output 1,244, -9% vs median |
| 31 | Georgia | 208 | 1,413 | 14.74 | 4.7 | 6.5 | $2 apart from Ohio; Cooling degree-days 1,726, +98% vs median |
| 32 | Wyoming | 207 | 1,549 | 13.37 | 6.7 | 6.8 | Cooling degree-days 278, -68% vs median; $1 apart from Georgia; Output 1,549, +13% vs median |
| 33 | Virginia | 205 | 1,343 | 15.28 | 19.0 | 7.4 | $2 apart from Wyoming; Median household 90,974, +20% vs median |
| 34 | Utah | 201 | 1,541 | 13.02 | 63.8 | 7.1 | Median household 91,750, +21% vs median; $5 apart from Virginia; Output 1,541, +12% vs median |
| 35 | North Carolina | 198 | 1,411 | 14.00 | 11.4 | 7.3 | $3 apart from Utah; Median household 69,904, -7% vs median |
| 36 | Oklahoma | 197 | 1,495 | 13.21 | 10.5 | 6.8 | Median household 63,603, -16% vs median; $0 apart from North Carolina; Cooling degree-days 1,919, +120% vs median |
| 37 | Mississippi | 192 | 1,370 | 14.03 | 1.3 | 6.1 | Median household 54,915, -27% vs median; $5 apart from Oklahoma; Cooling degree-days 2,181, +150% vs median |
| 38 | Iowa | 187 | 1,373 | 13.62 | 12.5 | 7.4 | $5 apart from Mississippi; Home price 13.62, -12% vs median |
| 39 | South Dakota | 186 | 1,400 | 13.32 | 1.1 | 8.5 | Home price 13.32, -13% vs median; $0 apart from Iowa; Home systems 1.1, -93% vs median |
| 40 | Louisiana | 186 | 1,484 | 12.52 | 16.0 | 6.2 | Cooling degree-days 2,695, +209% vs median; $1 apart from South Dakota; Median household 60,023, -21% vs median |
| 41 | West Virginia | 184 | 1,199 | 15.39 | 1.1 | 8.5 | Median household 57,917, -23% vs median; $1 apart from Louisiana; Output 1,199, -13% vs median |
| 42 | Missouri | 184 | 1,386 | 13.30 | 10.5 | 10.0 | Home price 13.30, -14% vs median; $0 apart from West Virginia; Median household 68,920, -9% vs median |
| 43 | Tennessee | 183 | 1,385 | 13.22 | 0.0 | 6.9 | Median household 67,097, -11% vs median; $1 apart from Missouri; Home price 13.22, -14% vs median |
| 44 | Arkansas | 177 | 1,372 | 12.87 | 11.3 | 10.6 | Median household 58,773, -22% vs median; $7 apart from Tennessee; Cooling degree-days 1,763, +102% vs median |
| 45 | Kentucky | 176 | 1,340 | 13.13 | 4.9 | 8.4 | Median household 62,417, -17% vs median; $1 apart from Arkansas; Home price 13.13, -15% vs median |
| 46 | Oregon | 175 | 1,130 | 15.46 | 17.7 | 7.5 | Output 1,130, -18% vs median; $1 apart from Kentucky; Cooling degree-days 232, -73% vs median |
| 47 | Nebraska | 173 | 1,439 | 12.05 | 4.1 | 7.5 | $1 apart from Oregon; Home price 12.05, -22% vs median |
| 48 | Montana | 171 | 1,316 | 12.99 | 17.4 | 7.0 | Cooling degree-days 195, -78% vs median; $3 apart from Nebraska; Home price 12.99, -16% vs median |
| 49 | Idaho | 162 | 1,371 | 11.83 | 21.9 | 7.7 | Home price 11.83, -23% vs median; $9 apart from Montana; Cooling degree-days 488, -44% vs median |
| 50 | North Dakota | 157 | 1,326 | 11.82 | 0.6 | 5.6 | Home price 11.82, -23% vs median; $5 apart from Idaho; Cooling degree-days 444, -49% vs median |
| 51 | Washington | 140 | 1,062 | 13.17 | 17.1 | 7.3 | Output 1,062, -23% vs median; $17 apart from North Dakota; Median household 94,952, +26% vs median |
Hawaii $692 to Washington $140; 51 rows in the CSV.
CSVWhy the top and the bottom differ
Output is NLR PVWatts for one point per state (population-weighted center), a 20 degree south-facing roof and 14% losses. The sunniest and the cloudiest state differ by 1.79 times, the highest and lowest price by 3.4 times. Adoption (home net-metered systems per 1,000 accounts) is highest in Hawaii (220).
| Measure | First 10 (Hawaii to New Jersey) | Last 10 (Missouri to Washington) | All 51 |
|---|---|---|---|
| Value of 1 kW a year, $ | 397 | 170 | 247 |
| Output, kWh per kW a year | 1,377 | 1,313 | 1,389 |
| Home price 2025, ¢/kWh | 28.40 | 12.98 | 17.86 |
| Home systems per 1,000 accounts | 75.3 | 10.6 | 29.9 |
| Cooling degree-days (normal) | 579 | 821 | 1,098 |
| Median household income, $ | 93,544 | 72,808 | 78,195 |
Across the states, best states for rooftop solar moves most closely with (r, a pattern and not a cause; glossary):
- industry price: r = +0.90 across 51 states
- monthly home use: r = -0.67 across 51 states
- petroleum share of generation: r = +0.67 across 51 states
- median household income: r = +0.54 across 51 states
Best states for rooftop solar: regions and residents
By Census division, Pacific comes first on best states for rooftop solar (mean $360) and West North Central last ($188). Between Pacific and West North Central the means are $172 apart; Hawaii and Washington are $553 apart: most of the spread sits between states, not between regions.
| Census division | States | Mean, best states for rooftop solar | Ranked highest | Ranked lowest | Median rank |
|---|---|---|---|---|---|
| New England | 6 | $347 | Massachusetts $388 | Vermont $279 | 6 |
| Middle Atlantic | 3 | $291 | New York $336 | Pennsylvania $239 | 10 |
| East North Central | 5 | $231 | Michigan $256 | Ohio $210 | 23 |
| West North Central | 7 | $188 | Minnesota $214 | North Dakota $157 | 39 |
| South Atlantic | 9 | $229 | District of Columbia $305 | West Virginia $184 | 26 |
| East South Central | 4 | $193 | Alabama $223 | Kentucky $176 | 40 |
| West South Central | 4 | $198 | Texas $231 | Arkansas $177 | 38 |
| Mountain | 8 | $219 | Arizona $267 | Idaho $162 | 25 |
| Pacific | 5 | $360 | Hawaii $692 | Washington $140 | 14 |
One vote per state or one per resident? On best states for rooftop solar the answers are the median state $221, the plain state mean $247, weighted by residents $273.
| Group | Residents | Share of ranked residents | Mean of states | Mean weighted by residents |
|---|---|---|---|---|
| First 10: Hawaii to New Jersey | 85 million | 26% | $397 | $433 |
| Middle 31: Vermont to West Virginia | 209 million | 63% | $224 | $226 |
| Last 10: Missouri to Washington | 38 million | 12% | $170 | $170 |
Biggest steps between neighbours in this order:
- 1st to 2nd: Hawaii to California, $164 apart
- 2nd to 3rd: California to Massachusetts, $141 apart
- 7th to 8th: New York to New Hampshire, $27 apart
- 5th to 6th: Connecticut to Maine, $25 apart
Within 10% of leader Hawaii ($692): 0 other places; within 25%: 1. The tenth place, New Jersey, is $395 from the leader and the last, Washington, $553.
Home price 2025, ¢/kWh against Solar output, kWh per kW a year
51 dots, one per state; Hawaii is highest on home price 2025, ¢/kWh and North Dakota lowest. Fit line r = -0.08.
51 states: first 8 of 51 rows
| State | Solar output, kWh per kW a year | Home price 2025, ¢/kWh |
|---|---|---|
| Hawaii | 1713.90 | 40.40 |
| California | 1687.10 | 31.35 |
| Massachusetts | 1277.10 | 30.41 |
| Rhode Island | 1294.70 | 29.48 |
| Connecticut | 1282.20 | 29.31 |
| Maine | 1266.90 | 27.69 |
| New York | 1273.10 | 26.39 |
| New Hampshire | 1258.10 | 24.53 |
Hawaii is highest on the vertical axis (40), North Dakota lowest (12).
CSVTry your own numbers
What a system earns at the 2025 home price.
Sources
From PVWatts, EIA retail sales, EIA-861.
Output: PVWatts v8, 1 kW, fixed roof, 20 degree tilt, south, 14% losses, one point per state. Value = output times the EIA 2025 home price. Adoption: EIA-861 2024 home net-metered systems per 1,000 home accounts.
Periods, retrieval dates and licences: data sources.
Related to best states for rooftop solar
Questions
Which state is best for rooftop solar?
By value of output at full retail price, Hawaii ($692 per kW a year), then California ($529) and Massachusetts ($388).
Which state has the most sunshine for panels?
Nevada: 1,818 kWh per kW a year in PVWatts, against 1,017 in Alaska.
Does the federal tax credit apply?
The 30% residential credit (Section 25D) ended after 31 December 2025, so it is not in this table. See the solar payback guide.
Is full retail credit realistic?
Under traditional net metering yes; under net billing or time-varying export rates the credit for exported power is lower. The value here is an upper bound.
Where do most homes have solar?
By home net-metered systems per 1,000 accounts: Hawaii (220), California (148). EIA-861 2024.
How accurate is the solar output?
One site per state, typical weather: a rough comparison of states, not a quote for your roof. Use PVWatts with your address for that.
Why does Hawaii rank first?
Hawaii has the highest home price (40.40 ¢) and 1,714 kWh of output per kW.