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Electricity Rate Change Trends
Rate changes between snapshot v1 and v20260515. Deltas reflect the difference in average residential electricity rate (¢/kWh) between the two data versions.
Largest rate increases
| State | Old rate | New rate | Change |
|---|---|---|---|
| Hawaii | 46.62 | 52.00 | +5.38 |
| Illinois | 20.47 | 23.85 | +3.38 |
| North Dakota | 12.35 | 13.61 | +1.26 |
| South Dakota | 14.52 | 15.73 | +1.21 |
| Rhode Island | 28.30 | 29.46 | +1.16 |
| Alaska | 27.35 | 28.23 | +0.88 |
| Montana | 13.90 | 14.67 | +0.77 |
| West Virginia | 16.06 | 16.80 | +0.74 |
| Michigan | 21.39 | 22.01 | +0.62 |
| Delaware | 18.79 | 19.38 | +0.59 |
Largest rate decreases
| State | Old rate | New rate | Change |
|---|---|---|---|
| Connecticut | 32.24 | 27.37 | -4.87 |
| California | 35.25 | 33.25 | -2.00 |
| North Carolina | 16.25 | 15.09 | -1.16 |
| New Mexico | 15.15 | 14.12 | -1.03 |
| South Carolina | 17.06 | 16.18 | -0.88 |
| Nevada | 14.29 | 13.60 | -0.69 |
| Kansas | 15.78 | 15.13 | -0.65 |
| Alabama | 17.41 | 16.77 | -0.64 |
| Massachusetts | 29.45 | 28.82 | -0.63 |
| Mississippi | 16.76 | 16.16 | -0.60 |