HomeWattCost

Rate changes, August 2026

US residential electricity was +3.4% on a year earlier. Hawaii rose most, +22.5%; 18 states rose less than 3%, and 7 fell.

State prices EIA, August 2026Tariffs checked November 12, 2026

Largest year-over-year increases

Average residential price, August 2026 against the same month a year earlier.

Hawaii+22.5%
Maine+14.1%
New Hampshire+13.1%
District of Columbia+12.1%
Virginia+11.3%
Delaware+11.0%
Michigan+10.9%
Idaho+10.7%
Ohio+10.4%
Iowa+10.2%

Every state, August 2026 against August 2025

Average residential price, ¢/kWh (EIA). The 10-year trend is the yearly change of the 12-month average price over ten years. Smallest changes: Connecticut -18.8%, California -3.8%, Utah -2.3%.

StateAugust 2026August 2025Change10-year trend
Hawaii47.1838.53+22.5%+4.9%/yr
Maine32.1128.14+14.1%+6.6%/yr
New Hampshire27.6424.44+13.1%+4.1%/yr
District of Columbia25.9823.18+12.1%+6.9%/yr
Virginia17.6415.85+11.3%+3.8%/yr
Delaware18.7016.85+11.0%+2.9%/yr
Michigan22.9920.73+10.9%+3.6%/yr
Idaho13.3712.08+10.7%+2.6%/yr
Ohio19.3817.55+10.4%+3.8%/yr
Iowa17.0615.48+10.2%+1.8%/yr
Pennsylvania21.7719.93+9.2%+4.1%/yr
Montana15.5714.29+9.0%+2.5%/yr
South Dakota15.1513.90+9.0%+2.3%/yr
Vermont23.8422.10+7.9%+3.3%/yr
Arkansas14.3713.33+7.8%+3.2%/yr
Maryland21.4019.89+7.6%+4.0%/yr
New York28.6526.64+7.5%+5.0%/yr
Illinois19.3218.03+7.2%+4.2%/yr
Washington14.6313.65+7.2%+4.2%/yr
Rhode Island28.1826.53+6.2%+4.5%/yr
Mississippi14.4313.61+6.0%+3.3%/yr
Colorado17.1716.21+5.9%+3.3%/yr
Alaska29.4127.79+5.8%—
Nebraska13.5412.80+5.8%+1.7%/yr
Kansas15.4714.65+5.6%+1.6%/yr
Kentucky13.8013.10+5.3%+3.0%/yr
Wisconsin19.4118.44+5.3%+2.9%/yr
Indiana17.0216.21+5.0%+3.8%/yr
Missouri16.0215.32+4.6%+2.1%/yr
West Virginia16.3115.62+4.4%+3.3%/yr
South Carolina15.7615.16+4.0%+2.2%/yr
New Mexico16.5115.98+3.3%+2.5%/yr
Texas15.9115.40+3.3%+3.7%/yr
Oklahoma14.8214.42+2.8%+3.1%/yr
North Dakota13.3112.97+2.6%+2.2%/yr
Louisiana12.8712.55+2.5%+3.4%/yr
North Carolina14.9514.59+2.5%+2.8%/yr
Tennessee13.4213.09+2.5%+2.8%/yr
Georgia15.9015.55+2.3%+2.8%/yr
Minnesota17.2016.89+1.8%+2.7%/yr
Nevada12.7212.54+1.4%+1.4%/yr
Wyoming14.4314.33+0.7%+2.4%/yr
Alabama16.3316.26+0.4%+3.3%/yr
Oregon15.9215.85+0.4%+3.9%/yr
Massachusetts30.4830.55-0.2%+4.9%/yr
Arizona15.0515.09-0.3%+2.4%/yr
New Jersey24.6124.70-0.4%+4.2%/yr
Florida14.9915.33-2.2%+3.3%/yr
Utah13.3113.62-2.3%+1.9%/yr
California29.7530.92-3.8%+6.4%/yr
Connecticut24.5130.17-18.8%+3.1%/yr

Tariff changes

Every week HomeWattCost re-reads each modeled plan and records when a new tariff version replaces the one on file; checked plans are re-transcribed from the utility’s sheets on their review dates.

CheckedPlanChangeTypical ¢/kWh
November 12, 2026TEP TRRESNew version, effective October 15, 202616.4 → 16.6
November 12, 2026TEP TRRESTNew version, effective October 15, 202615.8 → 15.9
November 12, 2026Con Edison SC-1 Rate INew version, effective November 12, 202637.7 → 37.8
November 12, 2026Con Edison SC-1 Rate IIINew version, effective November 12, 202634.9 → 34.9
November 12, 2026CEMC RSNew version, effective November 1, 202613.8 → 14.4
November 12, 2026Central Hudson SC1New version, effective November 11, 202633.9 → 28.8
November 12, 2026Central Hudson SC6New version, effective November 11, 202628.6 → 26.4
November 12, 2026Central Hudson SC6 EVNew version, effective November 11, 202628.1 → 25.9
November 7, 2026Duke Energy Carolinas RSNew version, effective November 1, 202615.7 → 16.3
November 7, 2026Duke Energy Carolinas RSTCNew version, effective November 1, 202615.2 → 15.7
November 7, 2026Duke Energy Carolinas RT-EVNew version, effective November 1, 202615.7 → 16.3
November 5, 2026Huntsville Utilities RSNew version, effective November 1, 202611.8 → 12.4
November 5, 2026Pepco RNew version, effective November 1, 202624.7 → 24.1
November 5, 2026Pepco R-TOU-PNew version, effective November 1, 202623.7 → 23.1
November 5, 2026Pepco R-PIVNew version, effective November 1, 202624.8 → 24.2
November 4, 2026NES RSNew version, effective November 1, 202613.1 → 13.7
November 4, 2026MLGW RSNew version, effective October 30, 202612.9 → 13.5
November 4, 2026MLGW RS TOUNew version, effective October 30, 202612.1 → 12.7
November 4, 2026Appalachian Power RSNew version, effective November 1, 202616.9 → 16.9
November 4, 2026Appalachian Power RS-TODNew version, effective November 1, 202617.0 → 17.0
November 3, 2026Hawaiian Electric Schedule RNew version, effective November 1, 202649.2 → 52.1
November 3, 2026Hawaiian Electric TOU-RNew version, effective November 1, 202646.8 → 49.6
November 3, 2026Ameren Illinois DS-1 / BGS-1New version, effective November 1, 202620.5 → 20.8
November 3, 2026KU RSNew version, effective October 29, 202612.8 → 12.5
November 3, 2026KU RTOD-EnergyNew version, effective October 29, 202611.9 → 11.7
November 3, 2026LG&E RSNew version, effective October 29, 202613.0 → 12.8
November 3, 2026LG&E RTOD-EnergyNew version, effective October 29, 202612.5 → 12.3
November 3, 2026Entergy Louisiana RSNew version, effective October 30, 202614.1 → 14.1
November 3, 2026PSEG Long Island 180New version, effective November 1, 202629.1 → 29.5
November 3, 2026PSEG Long Island 194New version, effective November 1, 202628.7 → 29.0
November 3, 2026Delmarva Power RNew version, effective November 1, 202624.9 → 24.5
November 3, 2026Delmarva Power R-TOU-NDNew version, effective November 1, 202624.7 → 24.2
November 3, 2026Delmarva Power R-PIVNew version, effective November 1, 202625.2 → 24.7
November 3, 2026Entergy New Orleans RES-25New version, effective November 1, 202613.9 → 13.6
November 3, 2026EPB RSNew version, effective November 1, 202612.5 → 13.1
November 3, 2026EPB TRSNew version, effective November 1, 202612.2 → 12.8
November 3, 2026EPB NRSNew version, effective November 1, 202612.4 → 13.0
November 3, 2026Middle Tennessee Electric RSNew version, effective November 1, 202612.1 → 12.7
November 3, 2026Middle Tennessee Electric NITEFLEXNew version, effective November 1, 202612.1 → 12.7
November 3, 2026NIPSCO Rate 611New version, effective November 1, 202624.0 → 25.3
November 1, 2026PSO RSNew version, effective October 28, 202616.6 → 16.6
November 1, 2026PSO RSTODNew version, effective October 28, 202616.2 → 16.2
November 1, 2026PSO RSEVNew version, effective October 28, 202616.0 → 16.0
October 31, 2026Alliant Energy 400New version, effective November 1, 202619.4 → 18.7
October 31, 2026Alliant Energy 407New version, effective November 1, 202619.2 → 18.5
October 31, 2026Xcel Energy D01New version, effective November 1, 202613.2 → 14.2
October 31, 2026Xcel Energy D02New version, effective November 1, 202613.0 → 14.0
October 31, 2026Con Edison SC-1 Rate INew version, effective November 1, 202636.9 → 37.5
October 31, 2026Con Edison SC-1 Rate IIINew version, effective November 1, 202634.2 → 34.8
October 31, 2026CPS Energy RENew version, effective November 1, 202613.3 → 13.0
October 31, 2026AES Indiana RSNew version, effective October 30, 202617.4 → 17.6
October 30, 2026Xcel Energy A01New version, effective October 1, 202617.5 → 17.3
October 30, 2026Xcel Energy A02New version, effective October 1, 202617.0 → 16.8
October 30, 2026MDU Rate 10New version, effective November 1, 202613.0 → 12.6
October 30, 2026MDU Rate 16New version, effective November 1, 202612.5 → 12.2
October 30, 2026Avista Schedule 1New version, effective November 1, 202614.1 → 14.1
October 29, 2026SRP E-23New version, effective November 1, 202614.5 → 14.7
October 29, 2026SRP E-28New version, effective November 1, 202614.4 → 14.6
October 29, 2026JEA RSNew version, effective November 1, 202614.2 → 14.9
October 29, 2026OUC RSNew version, effective November 1, 202613.5 → 13.4
State¢/kWhvs. year ago
Hawaii47.18+22.5%
Maine32.11+14.1%
New Hampshire27.64+13.1%
District of Columbia25.98+12.1%
Virginia17.64+11.3%
Delaware18.70+11.0%
Michigan22.99+10.9%
Idaho13.37+10.7%
Ohio19.38+10.4%
Iowa17.06+10.2%
Pennsylvania21.77+9.2%
Montana15.57+9.0%
South Dakota15.15+9.0%
Vermont23.84+7.9%
Arkansas14.37+7.8%
Maryland21.40+7.6%
New York28.65+7.5%
Illinois19.32+7.2%
Washington14.63+7.2%
Rhode Island28.18+6.2%
Mississippi14.43+6.0%
Colorado17.17+5.9%
Alaska29.41+5.8%
Nebraska13.54+5.8%
Kansas15.47+5.6%
Kentucky13.80+5.3%
Wisconsin19.41+5.3%
Indiana17.02+5.0%
Missouri16.02+4.6%
West Virginia16.31+4.4%
South Carolina15.76+4.0%
New Mexico16.51+3.3%
Texas15.91+3.3%
Oklahoma14.82+2.8%
North Dakota13.31+2.6%
Louisiana12.87+2.5%
North Carolina14.95+2.5%
Tennessee13.42+2.5%
Georgia15.90+2.3%
Minnesota17.20+1.8%
Nevada12.72+1.4%
Wyoming14.43+0.7%
Alabama16.33+0.4%
Oregon15.92+0.4%
Massachusetts30.48-0.2%
Arizona15.05-0.3%
New Jersey24.61-0.4%
Florida14.99-2.2%
Utah13.31-2.3%
California29.75-3.8%
Connecticut24.51-18.8%