投資家所有の公益事業者は公営事業者よりも電力料金を23%高く請求
Investor-owned utilities charge 23% more for electricity than public providers (kadoa.com)
要約
2025年、投資家所有の公益事業者は公営事業者や協同組合よりも電力料金を高く設定しており、その差は拡大傾向にあります。2020年以降、インフレ率24%に対し、投資家所有事業者の料金は34%、公営事業者は19%上昇しました。この価格差は、公営事業者が税金や低利での借入、連邦水力発電の利用といった利点を持つことでも説明されますが、2020年以降に特に顕著になった要因は不明確です。
全文翻訳
Investor-owned utilities charge 23% more for electricity than public ones
In 2025, homes paid 17.8¢ a kilowatt-hour at investor-owned utilities, 14.5¢ at public utilities and 14.1¢ at co-ops. Since 2020, investor-owned prices rose 34% and public ones 19%, against 24% inflation.
Average home price by utility owner
Change since 2020 against inflation, or cents per kilowatt-hour since 2015.
ViewChange since 2020Cents per kWhTabular dataDownload
Investor-ownedPublicCo-opInflation
Investor-ownedPublicCo-op
| Year | Investor-owned | Public | Co-op | Inflation since 2020 | Investor-owned, monthly bill | Public, monthly bill | Co-op, monthly bill |
|---|---|---|---|---|---|---|---|
| 2025 | 17.8¢ +34% | 14.5¢ +19% | 14.1¢ +19% | +24% | $146 | $130 | $159 |
| 2024 | 16.9¢ +28% | 13.9¢ +14% | 13.5¢ +14% | +21% | $137 | $125 | $149 |
| 2023 | 16.6¢ +25% | 13.4¢ +10% | 13.2¢ +12% | +18% | $133 | $120 | $145 |
| 2022 | 15.4¢ +17% | 13.3¢ +9.4% | 13.1¢ +11% | +13% | $130 | $124 | $150 |
| 2021 | 13.9¢ +5.1% | 12.4¢ +1.8% | 12.1¢ +2.2% | +4.7% | $116 | $113 | $136 |
| 2020 | 13.3¢ | 12.2¢ | 11.8¢ | – | $111 | $112 | $133 |
| 2019 | 13.1¢ | 12.0¢ | 11.9¢ | – | $109 | $109 | $136 |
| 2018 | 13.1¢ | 12.0¢ | 11.8¢ | – | $111 | $112 | $139 |
| 2017 | 13.3¢ | 11.8¢ | 11.9¢ | – | $106 | $106 | $130 |
| 2016 | 12.9¢ | 11.6¢ | 11.6¢ | – | $107 | $106 | $131 |
| 2015 | 12.9¢ | 11.6¢ | 11.6¢ | – | $108 | $107 | $133 |
Every year since 2015: home revenue, kWh sold, homes, price and bill by utility owner, for the US and each state, as a gzipped CSV.
Source: EIA annual survey of utilities (Form 861), homes buying supply and delivery from their utility; BLS CPI.
Home prices in 2025
Share of homes by their utility's average price per kilowatt-hour, in 2-cent bands.
ViewChartTabular data
Investor-owned 67% of homes paid 12 to 20 cents, and 11% paid 30 cents or more.
0%
10%
20%
30%
40%
50%
10¢20¢30¢+
Public 61% paid under 14 cents. The bump at the high end is LADWP and Long Island Power Authority, 13% of public homes.
0%
10%
20%
30%
40%
50%
10¢20¢30¢+
Co-op 52% paid under 14 cents.
0%
10%
20%
30%
40%
50%
10¢20¢30¢+
| Price a kWh | Investor-owned | Public | Co-op |
|---|---|---|---|
| Under 10¢ | 0.1% | 3.9% | 1.2% |
| 10 to 12¢ | 3.8% | 13.2% | 10.4% |
| 12 to 14¢ | 13.9% | 43.8% | 40.0% |
| 14 to 16¢ | 20.3% | 12.7% | 30.8% |
| 16 to 18¢ | 20.0% | 3.2% | 11.7% |
| 18 to 20¢ | 12.4% | 6.5% | 2.4% |
| 20 to 22¢ | 9.1% | 1.5% | 1.0% |
| 22 to 24¢ | 2.7% | 0.9% | 0.8% |
| 24 to 26¢ | 3.4% | 0.6% | 0.9% |
| 26 to 28¢ | 1.3% | 13.3% | 0.0% |
| 28 to 30¢ | 1.6% | 0.0% | 0.0% |
| 30¢ or more | 11.4% | 0.5% | 0.6% |
Source: EIA annual survey of utilities (Form 861), homes buying supply and delivery from their utility.
Price change by state, 2020 to 2025
States sorted by how far investor-owned prices pulled ahead of nonprofit (public and co-op) prices. The gap is widest at the top.
ViewChartTabular data
0%20%40%60%
- Maine
- Washington
- California
- New Jersey
- New York
- Ohio
- Delaware
- Oregon
- Oklahoma
- Illinois
- Pennsylvania
- Wyoming
- Hawaii
- Maryland
- Florida
- Colorado
- North Carolina
- Indiana
- Georgia
- Mississippi
- Wisconsin
- Rhode Island
- Virginia
- Montana
- Connecticut
- Alabama
- Minnesota
- Texas
- Arizona
- Utah
- North Dakota
- New Mexico
- Alaska
- New Hampshire
- Tennessee
- Nevada
- South Carolina
- Massachusetts
- Nonprofit prices rose as fast or faster in these 10
- South Dakota
- Michigan
- Louisiana
- Missouri
- Idaho
- Kansas
- Vermont
- Arkansas
- Iowa
- Kentucky
| Alabama | +33% | +22% | 17.9¢ | 13.9¢ |
| Alaska | +20% | +15% | 17.8¢ | 26.5¢ |
| Arizona | +29% | +21% | 16.6¢ | 14.0¢ |
| Arkansas | +22% | +26% | 13.1¢ | 12.6¢ |
| California | +62% | +28% | 33.9¢ | 22.7¢ |
| Colorado | +37% | +18% | 16.1¢ | 15.3¢ |
| Connecticut | +34% | +23% | 30.0¢ | 19.5¢ |
| Delaware | +48% | +17% | 18.2¢ | 14.7¢ |
| Florida | +40% | +21% | 15.7¢ | 13.8¢ |
| Georgia | +31% | +15% | 16.3¢ | 13.3¢ |
| Hawaii | +37% | +14% | 41.7¢ | 38.4¢ |
| Idaho | +19% | +20% | 12.0¢ | 11.3¢ |
| Illinois | +39% | +15% | 17.3¢ | 15.5¢ |
| Indiana | +30% | +13% | 16.6¢ | 14.5¢ |
| Iowa | +7.3% | +13% | 13.6¢ | 13.3¢ |
Showing 15 of 48
Source: EIA annual survey of utilities (Form 861), homes buying supply and delivery from their utility.
Largest utilities, 2020 to 2025
Change in the average home price at utilities with 250,000 or more homes: investor-owned, public and co-op.
ViewChartTabular data
Inflation +24%
- New York State Electric & Gas, NY+97%
- San Diego Gas & Electric (SDG&E), CA+79%
- Potomac Electric Power, DC+76%
- Rochester Gas & Electric, NY+75%
- Southern California Edison (SCE), CA+73%
- Tampa Electric, FL+72%
- Ameren Illinois, IL+72%
- Central Maine Power, ME+69%
- Baltimore Gas & Electric, MD+67%
- Pacific Gas and Electric (PG&E), CA+59%
- Appalachian Power (AEP), VA+59%
- Puget Sound Energy, WA+57%
- National Grid (Niagara Mohawk), NY+57%
- Duke Energy Ohio, OH+52%
- Portland General Electric, OR+50%
- AEP Ohio, OH+50%
- PSO (AEP), OK+50%
- Potomac Electric Power, MD+49%
- Delmarva Power, DE+48%
- Duquesne Light, PA+46%
Showing 20 of 99
| New York State Electric & Gas | NY | Investor-owned | 11.5¢ | 22.6¢ | +97% |
| San Diego Gas & Electric (SDG&E) | CA | Investor-owned | 25.5¢ | 45.8¢ | +79% |
| Potomac Electric Power | DC | Investor-owned | 11.8¢ | 20.8¢ | +76% |
| Rochester Gas & Electric | NY | Investor-owned | 12.6¢ | 22.0¢ | +75% |
| Southern California Edison (SCE) | CA | Investor-owned | 18.2¢ | 31.5¢ | +73% |
| Tampa Electric | FL | Investor-owned | 10.1¢ | 17.3¢ | +72% |
| Ameren Illinois | IL | Investor-owned | 9.7¢ | 16.7¢ | +72% |
| Central Maine Power | ME | Investor-owned | 16.2¢ | 27.4¢ | +69% |
| Baltimore Gas & Electric | MD | Investor-owned | 12.1¢ | 20.2¢ | +67% |
| Pacific Gas and Electric (PG&E) | CA | Investor-owned | 23.6¢ | 37.5¢ | +59% |
| Appalachian Power (AEP) | VA | Investor-owned | 10.8¢ | 17.2¢ | +59% |
| Puget Sound Energy | WA | Investor-owned | 10.8¢ | 17.0¢ | +57% |
| National Grid (Niagara Mohawk) | NY | Investor-owned | 12.6¢ | 19.9¢ | +57% |
| Duke Energy Ohio | OH | Investor-owned | 11.0¢ | 16.8¢ | +52% |
| Portland General Electric | OR | Investor-owned | 12.5¢ | 18.8¢ | +50% |
Showing 15 of 99
Source: EIA annual survey of utilities (Form 861), homes buying supply and delivery from their utility; BLS CPI.
Outage minutes a year by utility owner
Minutes without power for the average home, not counting major storms.
ViewChartTabular data
Investor-ownedPublicCo-op
| Year | Investor-owned | Public | Co-op |
|---|---|---|---|
| 2025 | 120 min | 80 min | 166 min |
| 2024 | 123 min | 84 min | 188 min |
| 2023 | 116 min | 85 min | 167 min |
| 2022 | 127 min | 83 min | 161 min |
| 2021 | 121 min | 80 min | 164 min |
| 2020 | 121 min | 76 min | 150 min |
| 2019 | 120 min | 73 min | 153 min |
| 2018 | 119 min | 71 min | 152 min |
| 2017 | 114 min | 78 min | 150 min |
| 2016 | 119 min | 69 min | 149 min |
| 2015 | 114 min | 68 min | 152 min |
Source: EIA annual survey of utilities (Form 861), reliability.
About the data
- Public power is common where electricity is cheap, so we also compared utilities within each state. Investor-owned utilities charged more than public utilities and co-ops in 39 of 48 states, and their prices rose faster in 38.
- Public utilities pay no income tax, borrow tax-free and often buy cheap federal hydropower. That explains part of the price gap, but not why it widened after 2020.
- Most of the gap opened from 2020 to 2023, during the energy price spike: 25% at investor-owned utilities, 11% at public utilities and co-ops. Before and since, both rose at about the same pace.
- After inflation, investor-owned prices rose 7.9%. Public and co-op prices fell 4.3%.
- Co-op homes have the highest bills, $159 a month in 2025, because they use the most power.
- Homes that buy power from a retail supplier aren't in the investor-owned figures. Counting them, prices on investor-owned lines rose 36%.
- Price is what homes paid divided by the kilowatt-hours they used, from EIA's yearly survey of utilities. Federal utilities and the smallest ones are left out.
- The data shows what homes paid, not why. Investor-owned utilities earn a return for shareholders on what they build. Public utilities and co-ops have no shareholders. See the rate cases for increases utilities are asking for now.