Clean power and home prices: the link across states is weak
Vermont makes 100% of its power from renewables and nuclear. Delaware makes 4%. Plotted against home price, the 51 points give a correlation of -0.07.
What we found
On the fitted line, ten more points of clean share go with a 0.20 cent lower price. Without Hawaii, which relies on imported fuel and sits far from the rest, the correlation is 0.01.
A correlation shows that two numbers move together. It does not show that one causes the other. Fuel mix, wires, weather and state policy all differ at once.
Map
- 4% to 22%
- 22% to 39%
- 39% to 49%
- 49% to 62%
- 62% to 100%
The two numbers plotted together
Highest and lowest
Ten highest clean shares
Ten lowest clean shares
How we computed it
- Clean share = wind + solar + hydro + other renewables + nuclear, as a share of the state's net generation (EIA-923, 2025).
- Pair it with the home price for the same state and year. 51 places have both.
- Pearson correlation of the two lists: r = -0.067. Without Hawaii: 0.008.
- Least-squares slope × 10 = -0.20 cents per ten points of clean share.
Formula: r = Pearson correlation(clean share, home price) over states
All 51 places
| Vermont | 1 | 99.8% | 99.8% | 0.0% | 22.92 |
|---|---|---|---|---|---|
| Washington | 2 | 80.8% | 73.2% | 7.6% | 13.11 |
| South Dakota | 3 | 79.5% | 79.5% | 0.0% | 13.38 |
| New Hampshire | 4 | 69.7% | 12.6% | 57.1% | 24.56 |
| Idaho | 5 | 68.5% | 68.5% | 0.0% | 11.82 |
| Illinois | 6 | 67.7% | 16.7% | 50.9% | 17.69 |
| Oregon | 7 | 64.5% | 64.5% | 0.0% | 15.37 |
| California | 8 | 63.9% | 55.3% | 8.6% | 32.54 |
| Kansas | 9 | 62.9% | 48.0% | 14.9% | 14.56 |
| Iowa | 10 | 62.0% | 62.0% | 0.0% | 13.72 |
| South Carolina | 11 | 60.7% | 6.3% | 54.4% | 14.96 |
| Maine | 12 | 57.8% | 57.8% | 0.0% | 27.78 |
| Montana | 13 | 56.3% | 56.3% | 0.0% | 12.98 |
| Minnesota | 14 | 56.1% | 33.7% | 22.5% | 15.82 |
| New Mexico | 15 | 52.9% | 52.9% | 0.0% | 15.08 |
| Tennessee | 16 | 52.5% | 13.9% | 38.6% | 13.18 |
| Nebraska | 17 | 50.5% | 33.1% | 17.4% | 12.34 |
| New York | 18 | 50.3% | 28.7% | 21.6% | 26.39 |
| Maryland | 19 | 49.6% | 10.2% | 39.3% | 19.48 |
| New Jersey | 20 | 49.3% | 3.6% | 45.6% | 22.63 |
| Georgia | 21 | 47.8% | 12.8% | 35.0% | 14.73 |
| Arizona | 22 | 47.2% | 20.3% | 26.9% | 15.32 |
| North Carolina | 23 | 45.8% | 13.8% | 32.0% | 14.02 |
| Oklahoma | 24 | 45.3% | 45.3% | 0.0% | 13.12 |
| Nevada | 25 | 44.2% | 44.2% | 0.0% | 13.15 |
| Colorado | 26 | 43.2% | 43.2% | 0.0% | 15.85 |
| District of Columbia | 27 | 43.2% | 43.2% | 0.0% | 21.94 |
| Connecticut | 28 | 41.8% | 3.6% | 38.2% | 29.38 |
| North Dakota | 29 | 40.6% | 40.6% | 0.0% | 11.81 |
| Texas | 30 | 39.9% | 33.0% | 7.0% | 15.47 |
| Alabama | 31 | 39.0% | 9.1% | 29.8% | 16.10 |
| Virginia | 32 | 38.5% | 12.4% | 26.2% | 15.28 |
| Arkansas | 33 | 36.3% | 14.1% | 22.2% | 12.84 |
| Pennsylvania | 34 | 34.3% | 3.9% | 30.4% | 19.30 |
| Michigan | 35 | 33.8% | 12.5% | 21.3% | 20.01 |
| Wyoming | 36 | 30.8% | 30.8% | 0.0% | 13.38 |
| Wisconsin | 37 | 28.9% | 13.6% | 15.4% | 18.16 |
| Alaska | 38 | 25.8% | 25.8% | 0.0% | 26.09 |
| Missouri | 39 | 23.0% | 13.1% | 10.0% | 13.49 |
| Utah | 40 | 22.2% | 22.2% | 0.0% | 13.07 |
| Florida | 41 | 22.0% | 10.6% | 11.4% | 15.24 |
| Hawaii | 42 | 21.7% | 21.7% | 0.0% | 40.59 |
| Mississippi | 43 | 21.1% | 6.0% | 15.1% | 14.03 |
| Louisiana | 44 | 20.0% | 5.1% | 14.9% | 12.57 |
| Ohio | 45 | 19.9% | 8.1% | 11.8% | 16.96 |
| Massachusetts | 46 | 17.2% | 17.2% | 0.0% | 30.48 |
| Indiana | 47 | 16.2% | 16.2% | 0.0% | 16.23 |
| Rhode Island | 48 | 11.1% | 11.1% | 0.0% | 29.46 |
| Kentucky | 49 | 8.7% | 8.7% | 0.0% | 13.24 |
| West Virginia | 50 | 6.8% | 6.8% | 0.0% | 15.41 |
| Delaware | 51 | 4.2% | 4.2% | 0.0% | 17.13 |
51 rows. Also as a plain file: facts/data/clean-power-and-price.csv.
CSVWhat this does not show
Generation inside a state is not the same as the power its customers buy: states import and export. Some states sell most of what their nuclear plants make to others.
Sources, dates and licences
| Source | Data period | Retrieved | Licence |
|---|---|---|---|
| EIA-923 generation (2025 final) and EIA-860 generator file (2025) | data year 2025 | 2 Oct 2026 | U.S. government data, public domain; cite EIA |
| EIA electricity retail sales, annual and monthly (API v2) | annual 2010 to 2025, monthly to Jul 2026 | 1 Oct 2026 | U.S. government data, public domain; cite EIA |
All source data are U.S. government publications. The tables and charts on this page are our own computations from them; how the sources are joined.
Related
Cleanest electricity by state · Citing this page · Facts feed
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Questions
What counts as clean here?
Wind, solar, hydro, other renewables and nuclear. Gas with carbon capture is not in the data.
Does clean power raise prices?
This data cannot say. The correlation is -0.07, and many other things differ between states.
Which state has the highest clean share?
Vermont, at 100% of generation.
Why show a version without Hawaii?
Hawaii has the highest fuel costs and a small grid. Removing it moves r from -0.07 to 0.01.
Where does the generation data come from?
EIA-923 plant reports, summed by state.