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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)

458 pointsby hubraumhugo314 コメント

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

YearInvestor-ownedPublicCo-opInflation since 2020Investor-owned, monthly billPublic, monthly billCo-op, monthly bill
202517.8¢ +34%14.5¢ +19%14.1¢ +19%+24%$146$130$159
202416.9¢ +28%13.9¢ +14%13.5¢ +14%+21%$137$125$149
202316.6¢ +25%13.4¢ +10%13.2¢ +12%+18%$133$120$145
202215.4¢ +17%13.3¢ +9.4%13.1¢ +11%+13%$130$124$150
202113.9¢ +5.1%12.4¢ +1.8%12.1¢ +2.2%+4.7%$116$113$136
202013.3¢12.2¢11.8¢–$111$112$133
201913.1¢12.0¢11.9¢–$109$109$136
201813.1¢12.0¢11.8¢–$111$112$139
201713.3¢11.8¢11.9¢–$106$106$130
201612.9¢11.6¢11.6¢–$107$106$131
201512.9¢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.

Download CSV (gzip)

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 kWhInvestor-ownedPublicCo-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 more11.4%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%

  1. Maine
  2. Washington
  3. California
  4. New Jersey
  5. New York
  6. Ohio
  7. Delaware
  8. Oregon
  9. Oklahoma
  10. Illinois
  11. Pennsylvania
  12. Wyoming
  13. Hawaii
  14. Maryland
  15. Florida
  16. Colorado
  17. North Carolina
  18. Indiana
  19. Georgia
  20. Mississippi
  21. Wisconsin
  22. Rhode Island
  23. Virginia
  24. Montana
  25. Connecticut
  26. Alabama
  27. Minnesota
  28. Texas
  29. Arizona
  30. Utah
  31. North Dakota
  32. New Mexico
  33. Alaska
  34. New Hampshire
  35. Tennessee
  36. Nevada
  37. South Carolina
  38. Massachusetts
  39. Nonprofit prices rose as fast or faster in these 10
  40. South Dakota
  41. Michigan
  42. Louisiana
  43. Missouri
  44. Idaho
  45. Kansas
  46. Vermont
  47. Arkansas
  48. Iowa
  49. 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%

  1. New York State Electric & Gas, NY+97%
  2. San Diego Gas & Electric (SDG&E), CA+79%
  3. Potomac Electric Power, DC+76%
  4. Rochester Gas & Electric, NY+75%
  5. Southern California Edison (SCE), CA+73%
  6. Tampa Electric, FL+72%
  7. Ameren Illinois, IL+72%
  8. Central Maine Power, ME+69%
  9. Baltimore Gas & Electric, MD+67%
  10. Pacific Gas and Electric (PG&E), CA+59%
  11. Appalachian Power (AEP), VA+59%
  12. Puget Sound Energy, WA+57%
  13. National Grid (Niagara Mohawk), NY+57%
  14. Duke Energy Ohio, OH+52%
  15. Portland General Electric, OR+50%
  16. AEP Ohio, OH+50%
  17. PSO (AEP), OK+50%
  18. Potomac Electric Power, MD+49%
  19. Delmarva Power, DE+48%
  20. Duquesne Light, PA+46%

Showing 20 of 99

New York State Electric & GasNYInvestor-owned11.5¢22.6¢+97%
San Diego Gas & Electric (SDG&E)CAInvestor-owned25.5¢45.8¢+79%
Potomac Electric PowerDCInvestor-owned11.8¢20.8¢+76%
Rochester Gas & ElectricNYInvestor-owned12.6¢22.0¢+75%
Southern California Edison (SCE)CAInvestor-owned18.2¢31.5¢+73%
Tampa ElectricFLInvestor-owned10.1¢17.3¢+72%
Ameren IllinoisILInvestor-owned9.7¢16.7¢+72%
Central Maine PowerMEInvestor-owned16.2¢27.4¢+69%
Baltimore Gas & ElectricMDInvestor-owned12.1¢20.2¢+67%
Pacific Gas and Electric (PG&E)CAInvestor-owned23.6¢37.5¢+59%
Appalachian Power (AEP)VAInvestor-owned10.8¢17.2¢+59%
Puget Sound EnergyWAInvestor-owned10.8¢17.0¢+57%
National Grid (Niagara Mohawk)NYInvestor-owned12.6¢19.9¢+57%
Duke Energy OhioOHInvestor-owned11.0¢16.8¢+52%
Portland General ElectricORInvestor-owned12.5¢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

YearInvestor-ownedPublicCo-op
2025120 min80 min166 min
2024123 min84 min188 min
2023116 min85 min167 min
2022127 min83 min161 min
2021121 min80 min164 min
2020121 min76 min150 min
2019120 min73 min153 min
2018119 min71 min152 min
2017114 min78 min150 min
2016119 min69 min149 min
2015114 min68 min152 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.