CoServ electric rates and bills
CoServ's 310,805 residential customers in Texas paid an average of 13.18¢ per kWh in 2025, for an average bill of $157.07 a month on 1,192 kWh.1
EIA-861 2025 final, released October 7, 2026; the next annual release is due in August 2027. Averages are revenue divided by kWh, all charges included: not the rate printed in a tariff.
6 of 254 Texas counties served (EIA-861 2025)
CoServ's residential members paid less per kWh in 2025 than the year before: an average of 13.18¢ per kWh, −4.3%1 on 2024, while the Texas average rose +3.1%2. Tri-County Electric Cooperative, which also reports customers in Denton County, went the other way, and homes on Oncor's wires in the same counties buy their power from retail providers instead.
CoServ's 2025 price per kWh
CoServ, registered with EIA as Denton County Electric Cooperative (CoServ), is owned by its members and connected to the ERCOT grid; it buys the power, runs the lines and bills the customer. Its 2025 report counted 310,805 residential members and 337,0151 accounts in all.
Homes on CoServ's system paid an average of 13.18¢ per kWh1 that year. The figure is average revenue per kWh, not a tariff rate: the dollars billed to residential members divided by the kWh they consumed. Because a fixed monthly charge is spread over each home's kWh, a home that uses little electricity pays more per kWh than this average and a heavy user less.
How the 2025 average compares:
| Comparison | CoServ's position |
|---|---|
| Texas utilities with 10,000 or more residential customers | 29th lowest of 61 |
| Texas average, all providers (15.40¢ per kWh2) | 14.4% below the Texas average |
| Electric cooperatives nationwide | 6.5% below the national average for electric cooperatives |
| US utilities with 100,000 or more residential customers | 39th lowest of 1771 |
Searches for a current CoServ price per kWh run into a gap: Form EIA-861M, EIA's monthly survey, covers only a sample of utilities and leaves CoServ out, so 2025 is the newest official year. For context only, Texas homes across all providers paid 15.98¢ per kWh3 over the 12 months September 2025 to August 2026 (2026 months preliminary); that is a statewide figure, not CoServ's.
The price fell in 2025
From 2024 to 2025, CoServ's residential average went from 13.77¢ per kWh to 13.18¢ per kWh, a drop of 4.3%. Use per home also slipped, from 1,208 kWh to 1,192 kWh a month, so the average bill fell more than the price: from $166.394 to $157.07 (−5.6%1).
A neighboring co-op and the state moved differently over the same two years:
| Average price, 2024 | Average price, 2025 | Change | Average bill, 2025 | |
|---|---|---|---|---|
| CoServ | 13.77¢ per kWh | 13.18¢ per kWh | −4.3% | $157.07 |
| Tri-County Electric Cooperative | 12.65¢ per kWh4 | 15.07¢ per kWh | +19.1% | $227.781 |
| Texas, all providers | 14.94¢ per kWh | 15.40¢ per kWh | +3.1%2 | $170.955 |
In 2024, Tri-County's members paid less per kWh than CoServ's; in 2025 they paid more, and their homes used 1,512 kWh a month against CoServ's 1,192 kWh1, so the bill gap was wider still. EIA reports only revenue and sales, so these figures cannot show whether a change came from base rates, from the wholesale power cost passed through to members or from credits returned to them; CoServ's board decisions and rate schedules are published by the co-op.
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
| Utility | average monthly residential bill |
|---|---|
| Bluebonnet Electric Cooperative (TX) | $144.15 |
| Pedernales Electric Cooperative (TX) | $153.24 |
| CoServ (TX) | $157.07 |
| Tri-County Electric Cooperative (TX) | $227.78 |
Same county, a different kind of bill
CoServ reports customers in 6 counties: Collin County, Cooke County, Denton County, Grayson County, Tarrant County and Wise County6. Another distribution utility also reports service in each of them. In Denton and Collin counties, EIA's 2025 territory records list Oncor and TNMP alongside CoServ, plus other co-ops such as Tri-County in Denton County and Grayson-Collin Electric Cooperative in Collin County, and city utilities such as Denton's. A city or ZIP code does not settle which utility serves a home; CoServ's service-area map does, by address.
Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 6 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
| County | Other utilities reporting service |
|---|---|
| Collin County | Oncor, TNMP, Grayson-Collin Electric Cooperative, Farmers Electric Cooperative, Fannin County Electric Cooperative, City of Farmersville |
| Cooke County | Oncor, TNMP, Grayson-Collin Electric Cooperative, Wise Electric Cooperative, Cooke County Electric Cooperative Association |
| Denton County | Oncor, TNMP, Tri-County Electric Cooperative, City of Denton, Wise Electric Cooperative, Cooke County Electric Cooperative Association, City of Sanger |
| Grayson County | Oncor, TNMP, Grayson-Collin Electric Cooperative, Cooke County Electric Cooperative Association, Fannin County Electric Cooperative, City of Whitesboro |
| Tarrant County | Oncor, Tri-County Electric Cooperative, United Electric Cooperative Service |
| Wise County | Oncor, Tri-County Electric Cooperative, Wise Electric Cooperative, Cooke County Electric Cooperative Association, City of Bridgeport |
Which utility owns the wires changes what the bill is made of:
- On CoServ's lines, the co-op sells and delivers the power, and its members paid the single bundled average of 13.18¢ per kWh in 2025.
- On Oncor's or TNMP's lines, homes buy electricity from a retail electric provider, and the wires company bills only delivery. Oncor's delivery-only revenue averaged 5.64¢ per kWh in 2025 and TNMP's 7.09¢ per kWh. Retail providers' residential customers across Texas paid 17.23¢ per kWh1 on average that year, a past average over all their plans and not an offer. These are different parts of different bills and are not added together here; the Oncor delivery page sets out the figures for that territory.
Averages also vary widely across the state. The highest 2025 residential average among Texas utilities with 10,000 or more residential customers belonged to Grayson-Collin Electric Cooperative, at 17.04¢ per kWh; the lowest was Kerrville Public Utility Board, at 9.42¢ per kWh. Texas co-ops as a group averaged 13.17¢ per kWh, investor-owned utilities that still sell bundled service 13.70¢ per kWh, and city-owned and other public power utilities 12.63¢ per kWh1.
Rooftop solar on a large scale for Texas
CoServ members reported 9,170 net-metered rooftop solar installations in 2025, with 92.1 megawatts of capacity. That works out to 29.5 per 1,000 residential members, against 10.8 for Texas as a whole and 38.1 nationally. Tri-County's figure was 16.28. How CoServ credits power sent back to the grid is set in its tariff; the net metering guide covers the general mechanics.
Advanced meters made up 100.0% of CoServ's residential meters in 2025. Enrollment in a time-of-use rate was small: 2,593 members, or 0.8%8.
Outages: a fraction of the Texas average
The average CoServ member was without power for 49 minutes in 2025 including major events, fewer than the Texas average of 225 minutes, and 37 minutes with major event days removed (130 minutes for Texas). Interruptions per member numbered 0.40, against 1.71 statewide. These are IEEE 1366 measures. Oncor (232 minutes) and TNMP (165 minutes9) measure with another method, so their minutes are a rough rather than exact comparison.
Source: EIA-861 2025, reliability. EIA-861 2025 final. Average revenue per kWh is all charges divided by kWh; it is not a tariff rate.
Show the numbers
| Utility | outage minutes per customer (all events) |
|---|---|
| CoServ (TX) | 49 |
| TNMP (TX) | 165 |
| Tri-County Electric Cooperative (TX) | 203 |
| Oncor (TX) | 232 |
Live outages appear on CoServ's own outage map, not in EIA data.
Commercial and industrial accounts
Businesses on CoServ's lines paid different averages in 2025: 13.57¢ per kWh for 23,030 commercial accounts, whose bills averaged $332.14 a month, and 10.87¢ per kWh for 3,180 industrial accounts. Over all classes together the co-op's average was 12.67¢ per kWh1. For prices across the state, see electricity in Texas.
CoServ rates: common questions
What is CoServ's electric rate per kWh?
CoServ's residential members paid an average of 13.18¢ per kWh1 in 2025, the latest year EIA has published for the co-op. EIA computes it from the co-op's annual EIA-861 filing as residential revenue over residential kWh, so the monthly charge and power-cost adjustments are inside it; the separate charges are in CoServ's published rate schedules. CoServ is outside EIA's monthly sample, which is why no 2026 average has been published.
How much is the average CoServ electric bill?
In 2025 a CoServ home used 1,192 kWh a month and was billed $157.071 on average, down from $166.394 in 2024. Statewide, counting every provider, the 2025 residential average was $170.955.
Did CoServ raise rates in 2026?
EIA's figures for CoServ stop at 2025, and in that year the average price fell 4.3%1 from 2024. EIA's August 2027 release will carry the co-op's 2026 average. Decisions on CoServ's rates are posted by the co-op; EIA records only what was billed.
Can CoServ members choose a retail electric provider?
EIA's 2025 data count all 310,8051 homes on CoServ's lines as full-service customers of the co-op, with none buying from a retail electric provider. Homes on Oncor's or TNMP's wires in the same counties do buy from providers; the Texas retail choice guide explains where that applies.
Related pages
Sources
- EIA-861 annual electric power industry report, 2025 final; table Sales_Ult_Cust_2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA, Historical state data, annual sales, revenue and customers; table HS861 2010-.xlsx; 2010-2025, final; released October 7, 2026. www.eia.gov
- 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
- 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
- EIA-861 2025, average monthly bill by state; table Average_Bill_2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861 2025, service territory; table Service_Territory_2025; 2025, final; released October 7, 2026. www.eia.gov
- Census Bureau, Cartographic boundary file, counties; table cb_2025_us_county_5m; cb_2021_us_county_5m; 2025 (2021 for Connecticut). www.census.gov
- 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
- 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.