What GreyStone Power members pay for electricity
GreyStone Power's 142,841 residential customers in Georgia paid an average of 12.55¢ per kWh in 2025, for an average bill of $149.26 a month on 1,189 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.
8 of 159 Georgia counties served (EIA-861 2025)
GreyStone Power's residential members paid an average of 12.55¢ per kWh in 2025, 14.9% below the Georgia average and 25th lowest of 1771 large US utilities. Two things set the cooperative apart from Georgia's other large utilities: its business accounts paid more per kWh than its homes, and its members were interrupted more often than the Georgia average yet, outside major event days, spent fewer minutes without power.
The average price per kWh in 2025
GreyStone Power, registered with EIA as GreyStone Power Corporation, is a member-owned electric cooperative. In 2025 it billed 142,841 residential members, 3.0% of Georgia's residential customers and the fifth-largest number in the state, among 156,1501 accounts of every kind.
Its residential members paid an average of 12.55¢ per kWh1 in 2025. That figure is average revenue per kWh: everything the cooperative billed to homes, fixed monthly charges included, divided by the kWh those homes used. It is the realised average, not a rate on the tariff. A member with low use pays more per kWh than this, because the fixed charge is spread over fewer kWh.
On that basis GreyStone ranked 6th lowest of the 46 Georgia utilities with 10,000 or more residential customers in 2025, 14.9% below the Georgia average (14.74¢ per kWh2, all providers). Against other cooperatives it came in 11.0% below the national average for electric cooperatives, and among the 177 US utilities with 100,000 or more residential customers it was 25th lowest of 177, below the 15.07¢ per kWh1 median of that group.
No 2026 figure exists for GreyStone alone. Form EIA-861M, EIA's monthly utility survey, covers a sample, and GreyStone is not in it; every GreyStone figure here comes from the annual Form EIA-861. For the state as a whole, Georgia's residential average across all providers was 15.17¢ per kWh3 over the 12 months September 2025 to August 2026, with the 2026 months preliminary. That number is led by Georgia Power's customers and does not describe GreyStone's members.
A smaller increase than most of Georgia's large utilities
From 2024 to 2025 GreyStone's residential average rose 2.7%, from 12.22¢ per kWh4 to 12.55¢ per kWh. Georgia's statewide residential average rose 4.7%2 over the same two years. Among the seven Georgia utilities with 100,000 or more residential customers, only Cobb EMC's average rose less (+1.2%); Sawnee EMC's rose most (+11.1%1).
Use per home barely moved: 1,186 kWh a month in 2024, 1,189 kWh in 2025. So the average bill tracked the price, going from $144.964 to $149.26 (+3.0%1). EIA's data record the size of that change, not which charges produced it; the cooperative's published rate schedules and member notices show the individual charges.
The bill: more kWh than a Georgia Power home
A GreyStone home used 1,189 kWh a month on average in 2025, against 1,077 kWh for Georgia overall and 990 kWh for a Georgia Power home. Higher use at a lower average price leaves the bills closer than the prices: GreyStone's $149.26 against $161.131 at Georgia Power and $158.705 for the state.
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 |
|---|---|
| Cobb EMC (GA) | $128.80 |
| Jackson EMC (GA) | $143.77 |
| GreyStone Power (GA) | $149.26 |
| Sawnee EMC (GA) | $152.73 |
| Georgia Power (GA) | $161.13 |
| Snapping Shoals EMC (GA) | $167.24 |
| Walton EMC (GA) | $174.78 |
These are averages over twelve months. The statewide monthly data show how far a single summer month can sit from them: Georgia's residential bill across all providers averaged $233.87 in August 2026 (preliminary), against $163.923 over the 12 months September 2025 to August 2026. EIA publishes no monthly figure for GreyStone, so the cooperative's own seasonal pattern is not in the official data.
Four of its eight counties are shared with Cobb EMC
EIA's service-territory file lists GreyStone Power in 8 counties on the western and southern side of metro Atlanta: Bartow County, Carroll County, Cobb County, Coweta County, Douglas County, Fayette County, Fulton County and Paulding County. Another utility also reports customers in every one of them. Four (Bartow, Cobb, Fulton and Paulding) also appear in Cobb EMC's list, and Fulton County has 96 distribution utilities, the most of any Georgia county.
Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 8 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 |
|---|---|
| Bartow County | Georgia Power, Cobb EMC, Central Georgia Electric Membership Corporation, Amicalola Electric Membership Corporation, City of Cartersville, City of Acworth |
| Carroll County | Georgia Power, Carroll Electric Membership Corporation |
| Cobb County | Georgia Power, Cobb EMC, City of Marietta, City of Acworth |
| Coweta County | Georgia Power, Coweta-Fayette Electric Membership Corporation, Diverse Power, Southern Rivers Energy, Newnan Wtr, Sewer & Light Comm, City of Palmetto, City of Grantville |
| Douglas County | Georgia Power |
| Fayette County | Georgia Power, Coweta-Fayette Electric Membership Corporation, Central Georgia Electric Membership Corporation |
| Fulton County | Georgia Power, Cobb EMC, Sawnee EMC, Coweta-Fayette Electric Membership Corporation, City of East Point, City of College Park, City of Fairburn, City of Palmetto |
| Paulding County | Georgia Power, Cobb EMC, Carroll Electric Membership Corporation |
Neighbors can pay noticeably different averages. In 2025, Cobb EMC's residential members averaged 11.55¢ per kWh, GreyStone's 12.55¢ per kWh and Georgia Power's 16.28¢ per kWh1.
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 residential price (bundled customers) |
|---|---|
| Cobb EMC (GA) | 11.55¢ |
| GreyStone Power (GA) | 12.55¢ |
| Georgia Power (GA) | 16.28¢ |
A home's supplier is fixed by where it sits on the territory maps, not by its county or mailing address, and Georgia has no residential retail choice. The Georgia Public Service Commission fully regulates Georgia Power but describes its authority over electric membership corporations such as GreyStone as limited, so the cooperative's own rate schedules are the record of its charges.
Business accounts pay more per kWh than homes
At Georgia's other large utilities, homes paid the highest average per kWh of the three customer classes in 2025. GreyStone's figures run the other way: its 13,211 commercial accounts paid an average of 13.23¢ per kWh, above the 12.55¢ per kWh its homes paid, with an average monthly bill of $539.87. Its 98 industrial accounts averaged 10.69¢ per kWh, with a monthly bill of $49,374.831.
| 2025 average price | Residential | Commercial | Industrial |
|---|---|---|---|
| GreyStone Power | 12.55¢ per kWh | 13.23¢ per kWh | 10.69¢ per kWh |
| Cobb EMC | 11.55¢ per kWh | 10.46¢ per kWh | 7.99¢ per kWh |
| Jackson EMC | 11.87¢ per kWh | 11.69¢ per kWh | 7.28¢ per kWh |
| Sawnee EMC | 12.82¢ per kWh | 11.78¢ per kWh | 7.64¢ per kWh |
| Georgia Power | 16.28¢ per kWh | 12.42¢ per kWh | 7.77¢ per kWh1 |
GreyStone's industrial average was also higher than that of any other utility in the table. A class average depends on which customers are in it and how much each uses, so a few large accounts can move it; EIA's data do not say what drives GreyStone's figures. Across all customer classes the cooperative averaged 12.38¢ per kWh1.
Outages: frequent, short on ordinary days
GreyStone members averaged 2.28 interruptions each in 2025, more than the Georgia average of 1.85. Counting every event, they spent 241 minutes without power, fewer than the Georgia average of 270 minutes. Leaving out major event days (days of unusually widespread outages, which IEEE 1366 sets apart), the total falls to 81 minutes, against 147 minutes statewide and 155 minutes8 at Georgia Power.
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) |
|---|---|
| Cobb EMC (GA) | 48 |
| Sawnee EMC (GA) | 66 |
| Snapping Shoals EMC (GA) | 175 |
| Jackson EMC (GA) | 217 |
| GreyStone Power (GA) | 241 |
| Georgia Power (GA) | 287 |
| Walton EMC (GA) | 307 |
Most of GreyStone's outage minutes in 2025 therefore came on major event days. Its neighbor Cobb EMC reported 48 minutes counting every event and 0.868 interruptions per member.
Smart meters, rooftop solar and help with bills
Advanced meters made up 99.9% of GreyStone's residential meters in 2025. Members had 607 net-metered rooftop solar systems, 4.2 per 1,000 residential customers, with 3.9 megawatts of capacity; Georgia Power had 5.09 per 1,000. Any time-of-use option and its hours are set out in the cooperative's rate schedules; the time-of-use guide explains how such rates change a bill.
Households behind on their bills can apply to Georgia's Low Income Home Energy Assistance Program (LIHEAP), which received $96.1 million10 in federal funds for FY2026. The Georgia page sets GreyStone beside the state's other cooperatives, municipal systems and Georgia Power.
GreyStone Power rates: common questions
What does GreyStone Power charge per kWh?
The official figure is an average, not a line from the rate schedule. In 2025, GreyStone Power's residential revenue divided by residential kWh came to 12.55¢ per kWh1, with the monthly fixed charge and any adjustments included. The per-kWh energy charge printed on the cooperative's schedule leaves those out, so it is a different number.
Did GreyStone Power raise rates for 2026?
There is no official 2026 average for GreyStone Power yet: EIA's monthly survey does not sample the cooperative, and the annual survey with 2026 data is due in August 2027. Between 2024 and 2025 the residential average rose 2.7%, from 12.22¢ per kWh4 to 12.55¢ per kWh1. Notices of new charges come from the cooperative itself.
What is the average GreyStone Power bill?
$149.26 a month in 2025, for an average of 1,189 kWh1. In 2024 it was $144.964. A home that uses more in summer pays more than this in those months; EIA publishes no monthly breakdown for GreyStone.
Can I choose GreyStone Power instead of Cobb EMC or Georgia Power?
Not by preference. Georgia has no residential retail choice (0.0%1 of residential customers bought from a supplier in 2025), so the utility whose territory covers an address serves it. GreyStone's service-area map, and its neighbors' maps, settle that address by address.
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, reliability; table Reliability_2025; 2025, final; released October 7, 2026. www.eia.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
- 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
How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.