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PSO (Public Service Company of Oklahoma) rates and bills

PSO's 506,245 residential customers in Oklahoma paid an average of 14.23¢ per kWh in 2025, for an average bill of $145.20 a month on 1,020 kWh.1 Over the last 12 months (Sep 2025–Aug 2026) the average was 15.89¢, and 18.42¢ in August 2026.2

EIA-861 2025 final (released October 7, 2026) and EIA's monthly utility survey through August 2026 (preliminary); next monthly update expected November 24, 2026. Averages are revenue divided by kWh, all charges included: not the rate printed in a tariff.

46 of 77 Oklahoma counties served (EIA-861 2025)

PSO's average residential price has risen in every period EIA reports: 12.73¢ per kWh7 in 2024, 14.23¢ per kWh1 in 2025 and 15.89¢ per kWh over the 12 months to August 2026. Over the same 12 months OG&E's homes averaged 12.50¢ per kWh2: the gap between Oklahoma's two large utilities has widened in each period, and it shows most in summer bills.

PSO's price per kWh: annual, 12-month and latest month

Public Service Company of Oklahoma, part of American Electric Power (AEP), delivered and sold electricity to 506,245 homes in 2025, 28.2% of Oklahoma's residential customers and second only to OG&E1. EIA publishes three averages for those homes, and each answers a different question:

  • Calendar 2025 (EIA-861, final): 14.23¢ per kWh1, the figure used for rankings.
  • Last 12 months, September 2025 to August 2026 (EIA-861M, 2026 months preliminary): 15.89¢ per kWh, the best guide to what PSO homes pay now.
  • August 20263 alone (EIA-861M, preliminary): 18.42¢ per kWh, +6.5%2 against August 2025.

All three are average revenue per kWh: what PSO billed residential customers in total, divided by the kWh they used. The monthly service charge, the fuel cost adjustment and riders are inside the number; most taxes are not. A tariff's energy charge is only one of those pieces, so it will not match, and a small household pays more per kWh than the average because its fixed charge is spread over fewer kWh. A summer month such as August should only be compared with the same month a year earlier, never with the annual figure.

The average PSO bill, month by month

The 2025 average bill was $145.20 for 1,020 kWh1 a month. Over the 12 months from September 2025 to August 2026 it averaged $163.99 on 1,032 kWh, but few months look like that average. Use per home bottomed at 647 kWh in November 2025, when the computed average bill was $91.20, and peaked at 1,751 kWh in August 2026, when it reached $322.592.

PSO: average residential use and bill by month

Source: EIA-861M monthly sales and revenue by utility. kWh per residential customer in each month (EIA-861M; months since January 2026 preliminary). The table adds the average bill and price for the month.

Show the numbers
MonthkWh per customerBill per customer¢/kWh
September 20251,000$182.5518.26¢
October 2025828$145.3617.56¢
November 2025647$91.2014.10¢
December 20251,022$127.4912.47¢
January 20261,125$137.7912.24¢
February 2026830$109.6213.21¢
March 2026745$120.1816.12¢
April 2026707$99.1714.03¢
May 2026839$135.5216.15¢
June 20261,237$209.5516.95¢
July 20261,649$286.2117.36¢
August 20261,751$322.5918.42¢

The peak comes with the cooling season. Oklahoma recorded 1,978 cooling degree days a year on average over 2016 to 2025 in NOAA's data, 9th highest4 among the 48 states with data, and cooling took 22%5 of Oklahoma homes' electricity in EIA's 2020 household survey. A household that budgets on the annual average will be short in July and August. Oklahoma received $41.0 million6 in federal LIHEAP energy-assistance funds for fiscal 2026; the Oklahoma page covers help with bills.

A rise in every period since 2024

From 2024 to 2025, PSO's residential average rose 11.8%, from 12.73¢ per kWh to 14.23¢ per kWh. Oklahoma's statewide residential average rose 7.9%8 that year and OG&E's 6.0%. Use per home fell from 1,047 kWh to 1,020 kWh a month, so the bill rose less than the price: from $133.197 to $145.20 (+9.0%1).

EIA's monthly survey shows the climb continuing into 2026. The 12 months to August 2026 averaged 15.89¢ per kWh, above the 2025 figure, on slightly more use per home. The chart shows PSO's monthly average against Oklahoma's. PSO's average per kWh is not flat through the year: it runs highest in late summer and early autumn and lowest in winter, so summer bills grow faster than summer use. August 20263's 18.42¢ per kWh was +6.5%2 on August 2025.

PSO: residential price each month, Jan 2025 to Aug 2026
PSO: residential price each month, Jan 2025 to Aug 20267.5¢10¢12.5¢15¢17.5¢20252026

Source: EIA-861M monthly sales and revenue by utility; EIA, Electric Power Monthly / EIA-861M sales and revenue by state. Residential revenue divided by kWh in each month, as reported to EIA's monthly survey (EIA-861M; months since January 2026 preliminary).

Show the numbers
MonthPSO (¢/kWh)kWh per customerBill per customer
January 20259.68¢1,312$127.05
February 202511.43¢987$112.78
March 202512.15¢798$97.02
April 202514.12¢605$85.47
May 202513.81¢823$113.74
June 202515.03¢1,196$179.74
July 202514.74¢1,612$237.54
August 202517.30¢1,415$244.75
September 202518.26¢1,000$182.55
October 202517.56¢828$145.36
November 202514.10¢647$91.20
December 202512.47¢1,022$127.49
January 202612.24¢1,125$137.79
February 202613.21¢830$109.62
March 202616.12¢745$120.18
April 202614.03¢707$99.17
May 202616.15¢839$135.52
June 202616.95¢1,237$209.55
July 202617.36¢1,649$286.21
August 202618.42¢1,751$322.59

EIA's figures record what customers paid, not why. PSO is one of three investor-owned utilities whose prices the Oklahoma Corporation Commission sets through rate case investigations and hearings, so base-rate changes, fuel adjustments and their reasons are in the commission's case files. The guide to rate increases explains how such a decision becomes a line on a bill.

PSO and OG&E: the same summer, different bills

PSO and OG&E serve most of Oklahoma's homes between them, and their customers use similar amounts of electricity. Their average prices have drifted apart:

PeriodPSOOG&E
2024, average price12.73¢ per kWh11.78¢ per kWh7
2025, average price14.23¢ per kWh12.49¢ per kWh1
12 months, September 2025 to August 202615.89¢ per kWh12.50¢ per kWh
August 2026, preliminary18.42¢ per kWh13.53¢ per kWh
August 2026, use per home1,751 kWh1,766 kWh
August 20263, average bill$322.59$239.022

In August 20263 the two utilities' homes used almost the same electricity, yet PSO's average bill was the larger by a wide margin. Over the full 12 months PSO's homes paid $163.99 a month on average and OG&E's $133.312.

Within Oklahoma, PSO's 2025 average was the 5th highest of the 25 utilities with 10,000 or more residential customers and 7.7% above the Oklahoma average. Those utilities ranged from 10.73¢ per kWh (City of Edmond) to 15.93¢ per kWh1 (Tri-County Electric Cooperative). Nobody chooses between them: in all 469 counties where PSO reports customers, at least one other utility also does, and the utilities' own service maps decide which one serves an address.

Counties where PSO reports customers in Oklahoma
Counties where PSO reports customers in OklahomaAdair County: not served by PSOAlfalfa County: not served by PSOAtoka County: PSO reports service, with 5 other utilitiesBeaver County: not served by PSOBeckham County: PSO reports service, with 3 other utilitiesBlaine County: PSO reports service, with 6 other utilitiesBryan County: not served by PSOCaddo County: PSO reports service, with 5 other utilitiesCanadian County: not served by PSOCarter County: not served by PSOCherokee County: PSO reports service, with 6 other utilitiesChoctaw County: PSO reports service, with 3 other utilitiesCimarron County: not served by PSOCleveland County: not served by PSOCoal County: PSO reports service, with 3 other utilitiesComanche County: PSO reports service, with 3 other utilitiesCotton County: PSO reports service, with 2 other utilitiesCraig County: PSO reports service, with 2 other utilitiesCreek County: PSO reports service, with 6 other utilitiesCuster County: PSO reports service, with 4 other utilitiesDelaware County: PSO reports service, with 4 other utilitiesDewey County: PSO reports service, with 5 other utilitiesEllis County: not served by PSOGarfield County: not served by PSOGarvin County: not served by PSOGrady County: PSO reports service, with 6 other utilitiesGrant County: not served by PSOGreer County: PSO reports service, with 5 other utilitiesHarmon County: PSO reports service, with 2 other utilitiesHarper County: not served by PSOHaskell County: PSO reports service, with 2 other utilitiesHughes County: PSO reports service, with 4 other utilitiesJackson County: PSO reports service, with 5 other utilitiesJefferson County: PSO reports service, with 4 other utilitiesJohnston County: PSO reports service, with 4 other utilitiesKay County: PSO reports service, with 8 other utilitiesKingfisher County: not served by PSOKiowa County: PSO reports service, with 3 other utilitiesLatimer County: PSO reports service, with 2 other utilitiesLe Flore County: PSO reports service, with 7 other utilitiesLincoln County: not served by PSOLogan County: not served by PSOLove County: not served by PSOMcClain County: PSO reports service, with 5 other utilitiesMcCurtain County: PSO reports service, with 3 other utilitiesMcIntosh County: PSO reports service, with 3 other utilitiesMajor County: not served by PSOMarshall County: not served by PSOMayes County: PSO reports service, with 4 other utilitiesMurray County: not served by PSOMuskogee County: not served by PSONoble County: not served by PSONowata County: PSO reports service, with 3 other utilitiesOkfuskee County: PSO reports service, with 3 other utilitiesOklahoma County: not served by PSOOkmulgee County: PSO reports service, with 3 other utilitiesOsage County: PSO reports service, with 8 other utilitiesOttawa County: PSO reports service, with 3 other utilitiesPawnee County: not served by PSOPayne County: not served by PSOPittsburg County: PSO reports service, with 4 other utilitiesPontotoc County: PSO reports service, with 2 other utilitiesPottawatomie County: not served by PSOPushmataha County: PSO reports service, with 2 other utilitiesRoger Mills County: PSO reports service, with 2 other utilitiesRogers County: PSO reports service, with 4 other utilitiesSeminole County: not served by PSOSequoyah County: not served by PSOStephens County: PSO reports service, with 6 other utilitiesTexas County: not served by PSOTillman County: PSO reports service, with 4 other utilitiesTulsa County: PSO reports service, with 6 other utilitiesWagoner County: PSO reports service, with 4 other utilitiesWashington County: PSO reports service, with 2 other utilitiesWashita County: PSO reports service, with 4 other utilitiesWoods County: not served by PSOWoodward County: not served by PSO

Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 46 counties. Counts whole counties even where the utility serves only part of one; check the utility's own service-area map for an address.

Show the numbers
CountyOther utilities reporting service
Atoka CountyOG&E, Choctaw Electric Cooperative, Kiamichi Electric Cooperative, Southeastern Electric Cooperative, People's Electric Cooperative
Beckham CountyOG&E, Northfork Electric Cooperative, Harmon Electric Association
Blaine CountyOG&E, CKenergy Electric Cooperative, Cimarron Electric Cooperative, City of Watonga, City of Geary, Okeene Public Works Authority
Caddo CountyOG&E, Oklahoma Electric Cooperative, CKenergy Electric Cooperative, Cotton Electric Cooperative, Anadarko Public Works Authority
Cherokee CountyOG&E, Northeast Oklahoma Electric Co, Lake Region Electric Cooperative, Cookson Hills Electric Cooperative, Ozarks Electric Cooperative Corp, Tahlequah Public Works Authority
Choctaw CountyOG&E, Choctaw Electric Cooperative, Southeastern Electric Cooperative
Coal CountyOG&E, Southeastern Electric Cooperative, People's Electric Cooperative
Comanche CountyCKenergy Electric Cooperative, Cotton Electric Cooperative, Rural Electric Cooperative
Cotton CountyCotton Electric Cooperative, Walters Public Works Authority
Craig CountyNortheast Oklahoma Electric Co, Empire District Electric Co
Creek CountyOG&E, East Central Oklahoma Electric Cooperative, Canadian Valley Electric Cooperative, Central Rural Electric Cooperative, Indian Electric Cooperative, Town of Mannford
Custer CountyOG&E, CKenergy Electric Cooperative, Cimarron Electric Cooperative, Northfork Electric Cooperative
Delaware CountyNortheast Oklahoma Electric Co, Lake Region Electric Cooperative, Ozarks Electric Cooperative Corp, Empire District Electric Co
Dewey CountyOG&E, CKenergy Electric Cooperative, Cimarron Electric Cooperative, Northwestern Electric Cooperative, Northfork Electric Cooperative
Grady CountyOG&E, Oklahoma Electric Cooperative, CKenergy Electric Cooperative, Cotton Electric Cooperative, Rural Electric Cooperative, City of Marlow
Greer CountyNorthfork Electric Cooperative, Southwest Rural Electric Association, Harmon Electric Association, City of Mangum, City of Granite
Harmon CountyNorthfork Electric Cooperative, Harmon Electric Association
Haskell CountyOG&E, Cookson Hills Electric Cooperative
Hughes CountyOG&E, Canadian Valley Electric Cooperative, People's Electric Cooperative, City of Wetumka
Jackson CountyCity of Altus, Southwest Rural Electric Association, Harmon Electric Association, City of Olustee, City of Eldorado
Jefferson CountyOG&E, Cotton Electric Cooperative, Red River Valley Rrl Electric Association, Town of Ryan
Johnston CountyOG&E, Red River Valley Rrl Electric Association, Southeastern Electric Cooperative, People's Electric Cooperative
Kay CountyOG&E, Indian Electric Cooperative, City of Ponca City, Kay Electric Cooperative, City of Blackwell, City of Tonkawa, City of Newkirk, Town of Braman
Kiowa CountyCKenergy Electric Cooperative, Southwest Rural Electric Association, Harmon Electric Association
Latimer CountyKiamichi Electric Cooperative, Cookson Hills Electric Cooperative
Le Flore CountyOG&E, Choctaw Electric Cooperative, Kiamichi Electric Cooperative, Cookson Hills Electric Cooperative, Arkansas Valley Electric Cooperative Corp, Town of Spiro, Rich Mountain Electric Cooperative
Mayes CountyNortheast Oklahoma Electric Co, Lake Region Electric Cooperative, City of Pryor, Grand River Dam Authority
McClain CountyOG&E, Oklahoma Electric Cooperative, People's Electric Cooperative, Rural Electric Cooperative, City of Purcell
McCurtain CountyChoctaw Electric Cooperative, Rich Mountain Electric Cooperative, Southwest Arkansas E C C
McIntosh CountyOG&E, East Central Oklahoma Electric Cooperative, Canadian Valley Electric Cooperative
Nowata CountyNortheast Oklahoma Electric Co, Verdigris Valley Electric Cooperative, Town of South Coffeyville
Okfuskee CountyOG&E, East Central Oklahoma Electric Cooperative, Canadian Valley Electric Cooperative
Okmulgee CountyOG&E, East Central Oklahoma Electric Cooperative, Canadian Valley Electric Cooperative
Osage CountyOG&E, Verdigris Valley Electric Cooperative, Indian Electric Cooperative, City of Ponca City, Kay Electric Cooperative, City of Skiatook, City of Pawhuska, City of Hominy
Ottawa CountyNortheast Oklahoma Electric Co, Miami Special Utility Authority, Empire District Electric Co
Pittsburg CountyOG&E, Kiamichi Electric Cooperative, Cookson Hills Electric Cooperative, People's Electric Cooperative
Pontotoc CountyOG&E, People's Electric Cooperative
Pushmataha CountyChoctaw Electric Cooperative, Kiamichi Electric Cooperative
Roger Mills CountyOG&E, Northfork Electric Cooperative
Rogers CountyNortheast Oklahoma Electric Co, Verdigris Valley Electric Cooperative, Lake Region Electric Cooperative, City of Claremore
Stephens CountyOG&E, Cotton Electric Cooperative, Rural Electric Cooperative, City of Duncan, City of Marlow, City of Comanche
Tillman CountyCotton Electric Cooperative, Southwest Rural Electric Association, City of Frederick, City of Manitou
Tulsa CountyOG&E, Verdigris Valley Electric Cooperative, East Central Oklahoma Electric Cooperative, Indian Electric Cooperative, City of Collinsville, City of Skiatook
Wagoner CountyOG&E, East Central Oklahoma Electric Cooperative, Lake Region Electric Cooperative, Wagoner Public Works Authority
Washington CountyVerdigris Valley Electric Cooperative, Copan Public Works Authority
Washita CountyOG&E, CKenergy Electric Cooperative, Northfork Electric Cooperative, City of New Cordell

Below the national median, and below most of AEP

Nationally, PSO's 2025 average ranked 75th lowest of 177 large utilities and was 20.0% below the national average for investor-owned utilities; the median large utility averaged 15.07¢ per kWh. Among AEP's operating utilities the range was wide, from 12.14¢ per kWh at SWEPCO (Arkansas) to 18.97¢ per kWh at AEP Ohio. PSO sat above all three SWEPCO jurisdictions in 2025 (Arkansas 12.14¢ per kWh, Texas 12.60¢ per kWh, Louisiana 13.85¢ per kWh) and below Kentucky Power (15.95¢ per kWh) and Appalachian Power in Virginia (17.16¢ per kWh1).

PSO and AEP's other operating utilities: average residential price, 2025
SWEPCO (AR)12.14¢
SWEPCO (TX)12.60¢
SWEPCO (LA)13.85¢
PSO (OK)14.23¢
Kentucky Power (KY)15.95¢
Appalachian Power (WV)16.97¢
Indiana Michigan Power (IN)17.16¢
Appalachian Power (VA)17.16¢
AEP Ohio (OH)18.97¢

Source: EIA-861 annual electric power industry report, 2025 final. EIA-861 2025 final. Average revenue per kWh is all charges divided by kWh; it is not a tariff rate.

Show the numbers
Utilityaverage residential price (bundled customers)
SWEPCO (AR)12.14¢
SWEPCO (TX)12.60¢
SWEPCO (LA)13.85¢
PSO (OK)14.23¢
Kentucky Power (KY)15.95¢
Appalachian Power (WV)16.97¢
Indiana Michigan Power (IN)17.16¢
Appalachian Power (VA)17.16¢
AEP Ohio (OH)18.97¢

The AEP page compares all of the company's utilities, including the 12-month figures.

Time-of-use enrollment and rooftop solar

PSO reported 504,772 residential customers enrolled in a time-varying rate for 2025, 99.7% of the homes on its wires, all under time-of-use programs; OG&E reported 12.2%. Advanced meters, which time-based billing needs, covered 99.9%11 of PSO's residential meters. These are the counts PSO filed with EIA; which plan applies to a home and its peak hours are set out in PSO's tariff, and the time-of-use guide shows how peak hours change a bill. Because nearly all PSO homes are counted as enrolled, the averages on this page are effectively averages of time-of-use customers.

Rooftop solar is less common than on OG&E's system: 4,653 net-metered residential installations in 2025, 9.2 per 1,000 customers, with 32.4 megawatts of capacity, against 13.711 per 1,000 at OG&E.

Outages

Under the IEEE 1366 standard, PSO customers averaged 200 minutes without power in 2025 including major events, fewer than the Oklahoma average of 286 minutes, and 98 minutes excluding them, with 1.4812 interruptions per customer.

Commercial and industrial customers

PSO's 76,872 commercial customers paid 9.15¢ per kWh on average in 2025 and its 5,824 industrial accounts 6.28¢ per kWh, against 14.23¢ per kWh for homes; across all 588,941 customers the average was 9.91¢ per kWh. Larger users spread fixed costs over many more kWh, which lowers their average. PSO operates in the SPP1 (Southwest Power Pool) wholesale market, according to its EIA filing.

PSO rates and bills: questions

What is PSO's rate per kWh?

EIA's figures are averages, not tariff lines: PSO's residential customers paid 15.89¢ per kWh over the last 12 months (September 2025 to August 2026, 2026 months preliminary), 14.23¢ per kWh1 in calendar 2025 and 18.42¢ per kWh2 in August 20263 alone. Each is total residential revenue divided by kWh sold, so the monthly service charge, fuel recovery and riders are included and most taxes are not.

What is the average PSO electric bill?

$145.20 a month in 2025 for 1,020 kWh1, and $163.99 on average over the 12 months from September 2025 to August 2026. The month matters more than the average: EIA's monthly data put the computed average bill at $91.20 in November 2025 and $322.59 in August 20262.

Did PSO raise rates in 2026?

The average price PSO's homes paid kept rising after 2025: 15.89¢ per kWh over the 12 months to August 2026 against 14.23¢ per kWh1 for 2025, and +6.5%2 in August 20263 on the same month a year earlier (preliminary). EIA's data show the result, not the decisions; approved base-rate and fuel changes are in the Oklahoma Corporation Commission's case files.

Is PSO part of AEP?

Yes. PSO is the trading name of Public Service Company of Oklahoma, a subsidiary of American Electric Power (AEP), and EIA reports it under that legal name. It serves Oklahoma only.

Can I buy electricity from someone other than PSO?

No. Oklahoma has no residential retail choice: EIA counted 01 residential customers with a competitive supplier in 2025. The utility whose territory covers an address supplies it.

Related pages

Sources

  1. EIA-861 annual electric power industry report, 2025 final; table Sales_Ult_Cust_2025; 2025, final; released October 7, 2026. www.eia.gov
  2. EIA-861M monthly sales and revenue by utility; table sales_ult_cust_2025 and _2026; released October 23, 2026. www.eia.gov
  3. EIA, Electric Power Monthly / EIA-861M sales and revenue by state; table sales_revenue.xlsx (EPM Table 5.6.A); January 2001 to 2026-08; months since January 2026 preliminary; released October 23, 2026. www.eia.gov
  4. NOAA, Climate Prediction Center population-weighted degree days by state; table daily state files, base 65°F; 2016-2025 annual sums; 1981-2010 CPC normals; released November 13, 2026. ftp.cpc.ncep.noaa.gov
  5. EIA, Residential Energy Consumption Survey 2020, state data; table CE4.1.EL.ST, CE5 state tables, state highlights; released June 28, 2023. www.eia.gov
  6. HHS, LIHEAP funding releases to states; table FY2027 first release; FY2026 final; FY2027 first release (October 9, 2026); FY2026 total; released October 9, 2026. acf.gov
  7. EIA-861 annual electric power industry report, 2024 final; table Sales_Ult_Cust_2024; 2024, final (file updated December 3, 2025); released December 3, 2025. www.eia.gov
  8. EIA, Historical state data, annual sales, revenue and customers; table HS861 2010-.xlsx; 2010-2025, final; released October 7, 2026. www.eia.gov
  9. EIA-861 2025, service territory; table Service_Territory_2025; 2025, final; released October 7, 2026. www.eia.gov
  10. Census Bureau, Cartographic boundary file, counties; table cb_2025_us_county_5m; cb_2021_us_county_5m; 2025 (2021 for Connecticut). www.census.gov
  11. EIA-861 2025, advanced meters, dynamic pricing and net metering; table Advanced_Meters, Dynamic_Pricing, Net_Metering 2025; 2025, final; released October 7, 2026. www.eia.gov
  12. EIA-861 2025, reliability; table Reliability_2025; 2025, final; released October 7, 2026. www.eia.gov

How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.