Solar in Georgia: payback, sun by city and utility-scale capacity
Across 5 Georgia cities, yearly output runs from 1,398 kWh per kW in Columbus to 1,453 in Augusta. May is the best month at 148 kWh per kW and Dec the worst at 88. Georgia pays back in 14.4 years at $3.00 a watt (rank 31 of 51), 0.9 years longer than the middle state. 1,413 kWh per kW (rank 16) at 14.73 ¢ (rank 32 from the top): sunshine drives it. Utility-scale solar in Georgia: 5,414 MW in 152 plants, 7.6% of 2025 generation; 4,130 MW more under construction or planned.
Best and worst month in Georgia: May 148, Dec 88 kWh per kW
| Georgia month | kWh per kW | Price ¢ | Value per kW | kWh per kW per sun unit |
|---|---|---|---|---|
| Jan | 97.1 | 13.50 | $13.11 | 0.79 |
| Feb | 92.8 | 13.56 | $12.58 | 0.77 |
| Mar | 122.3 | 14.69 | $17.97 | 0.76 |
| Apr | 131.8 | 14.82 | $19.53 | 0.74 |
| May | 147.5 | 14.98 | $22.10 | 0.72 |
| Jun | 139.4 | 15.96 | $22.25 | 0.71 |
| Jul | 134.0 | 15.56 | $20.85 | 0.70 |
| Aug | 128.4 | 15.43 | $19.81 | 0.70 |
| Sep | 118.2 | 15.30 | $18.08 | 0.71 |
| Oct | 112.9 | 14.53 | $16.40 | 0.74 |
| Nov | 100.4 | 14.42 | $14.48 | 0.77 |
| Dec | 87.9 | 13.67 | $12.02 | 0.79 |
Georgia: December to February give 20% of a year (rank 44 of 51, 1 = most winter); the best month is 1.7 times the worst. Output per unit of sun is highest in Jan (0.79) and lowest in Jul (0.70); PVWatts lowers cell output when the panel is hot, and the sun angle changes with the season. Our runs use one fixed 14% loss figure for every place, so snow or soiling in Georgia is not modelled separately.
Sun inside Georgia: 5 cities, 4% apart
| Georgia city | kWh per kW a year | Against state point | Sun, kWh/m2 a day | Payback at $3.00 | Residents |
|---|---|---|---|---|---|
| Atlanta | 1,416 | +0.2% | 5.18 | 14.4 | 499,287 |
| Columbus | 1,398 | -1.1% | 5.31 | 14.6 | 204,383 |
| Augusta | 1,453 | +2.9% | 5.29 | 14.0 | 201,504 |
| Macon | 1,414 | +0.1% | 5.35 | 14.4 | 156,543 |
| Savannah | 1,436 | +1.6% | 5.34 | 14.2 | 147,546 |
Georgia state point 33.28, -83.81; city points Atlanta 33.76, -84.42; Columbus 32.51, -84.88; Augusta 33.37, -82.07; Macon 32.81, -83.69; Savannah 32.02, -81.20. Panel and method: solar method.
Output by month in Georgia cities: 12 rows
| Georgia month | Atlanta | Columbus | Augusta | Macon | Savannah |
|---|---|---|---|---|---|
| Jan | 91.6 | 96.9 | 98.4 | 96.1 | 99.3 |
| Feb | 94.2 | 90.1 | 100.4 | 94.7 | 100.0 |
| Mar | 118.2 | 118.6 | 125.3 | 123.3 | 134.7 |
| Apr | 136.1 | 127.4 | 147.0 | 133.7 | 130.4 |
| May | 145.2 | 146.5 | 150.5 | 146.5 | 146.7 |
| Jun | 134.3 | 130.0 | 134.1 | 135.3 | 134.8 |
| Jul | 139.6 | 134.9 | 137.9 | 133.1 | 138.5 |
| Aug | 134.0 | 127.4 | 128.8 | 130.7 | 127.9 |
| Sep | 119.4 | 119.5 | 122.5 | 120.1 | 116.6 |
| Oct | 119.3 | 117.1 | 119.3 | 116.1 | 119.9 |
| Nov | 95.8 | 100.7 | 103.1 | 98.7 | 104.5 |
| Dec | 87.9 | 88.7 | 86.1 | 85.7 | 82.5 |
Georgia: 5 cities, best month 150 and worst 82 kWh per kW across them.
CSVGeorgia: payback 14.4 years, rank 31 of 51
| Measure | Value | Rank of 51 | Median state |
|---|---|---|---|
| Output of 1 kW a year, kWh | 1,413 | 16 | 1,372 |
| Home price, ¢ per kWh | 14.73 | 32 | 15.37 |
| Value of 1 kW a year | $208 | 31 | $222 |
| Payback at $3.00 a watt | 14.4 years | 31 | 13.5 years |
EIA-861 (2024): 22,579 home net-metered systems in Georgia, 4.7 per 1,000 accounts (rank 42), average 6.5 kW.
Sizes and prices per watt in Georgia
| Georgia kW | kWh a year | Value a year | Cost at $2.50 | At $3.00 | At $3.50 | t CO2 |
|---|---|---|---|---|---|---|
| 4 | 5,651 | $832 | $10,000 | $12,000 | $14,000 | 1.8 |
| 6 | 8,477 | $1,249 | $15,000 | $18,000 | $21,000 | 2.7 |
| 8 | 11,302 | $1,665 | $20,000 | $24,000 | $28,000 | 3.7 |
| 10 | 14,128 | $2,081 | $25,000 | $30,000 | $35,000 | 4.6 |
| 12 | 16,954 | $2,497 | $30,000 | $36,000 | $42,000 | 5.5 |
| Georgia $ per watt | 100% retail | 75% | 50% | 25% |
|---|---|---|---|---|
| $2.00 | 9.6 | 12.8 | 19.2 | 38.4 |
| $2.50 | 12.0 | 16.0 | 24.0 | 48.1 |
| $3.00 | 14.4 | 19.2 | 28.8 | 57.7 |
| $3.50 | 16.8 | 22.4 | 33.6 | 67.3 |
| $4.00 | 19.2 | 25.6 | 38.4 | 76.9 |
Georgia: 1,413 kWh/kW × 14.73 ¢ = 208 a year per kW; the 30% column (10.1 years at $3.00) is arithmetic only.
CSVUtility-scale solar in Georgia: 5,414 MW
Georgia: 5,414 MW of operable utility-scale solar in 152 plants across 75 counties (EIA-860, 2025), rank 7 of 51; 500 W per resident, rank 15. Solar made 7.6% of Georgia's net generation in 2025 (EIA-923), rank 17, +0.8 points against the national share. Biggest plants: Wadley Solar in Jefferson County, 260 MW (2025); SR Toombs, LLC in Montgomery County, 250 MW (2025); Cool Springs Solar (Hybrid) in Decatur County, 213 MW (2021). By county: Decatur 517 MW, Mitchell 440 MW, Jeff Davis 412 MW, Taylor 406 MW. Proposed: 82 MW under construction (2 plants) and 4,048 MW planned (17 plants); batteries 146 MW running and 1,251 MW proposed.
| Georgia year | MW added | Cumulative share of today's MW |
|---|---|---|
| 2019 | 442 | 8% |
| 2020 | 732 | 22% |
| 2021 | 870 | 38% |
| 2022 | 563 | 48% |
| 2023 | 508 | 58% |
| 2024 | 638 | 69% |
| 2025 | 650 | 81% |
Net metering and CO2 in Georgia
EIA-861 (2024): 22,579 home net-metered systems in Georgia, 4.7 per 1,000 accounts (rank 42), average 6.5 kW.
6 kW in Georgia: 8,477 kWh a year displaces 2.7 t CO2 at 0.324 kg per kWh, -0.3 t against the average state.
Georgia utilities and solar payback
| Georgia utility | Homes | Price ¢ | Value of 1 kW | Payback at $3.00 |
|---|---|---|---|---|
| Georgia Power Co | 2,452,488 | 15.49 | $219 | 13.7 yr |
| Jackson Electric Member Corp | 239,558 | 11.38 | $161 | 18.7 yr |
| Cobb Electric Membership Corp | 200,601 | 11.41 | $161 | 18.6 yr |
| Sawnee Electric Membership Corporation | 181,600 | 11.54 | $163 | 18.4 yr |
| GreyStone Power Corporation | 139,028 | 12.22 | $173 | 17.4 yr |
| Walton Electric Member Corp | 131,915 | 12.99 | $183 | 16.4 yr |
| Snapping Shoals El Member Corp | 105,253 | 12.37 | $175 | 17.2 yr |
| North Georgia Elec Member Corp | 90,182 | 12.18 | $172 | 17.4 yr |
| Flint Electric Membership Corp | 83,739 | 13.57 | $192 | 15.7 yr |
| Coweta-Fayette El Member Corp | 83,001 | 12.80 | $181 | 16.6 yr |
| Colquitt Electric Membership Corp | 65,743 | 13.20 | $186 | 16.1 yr |
| Central Georgia El Member Corp | 61,155 | 12.24 | $173 | 17.3 yr |
Georgia among its neighbours
| Closest to Georgia | Payback, years | kWh per kW | Price, ¢ | Utility-scale solar, points of generation | Miles away |
|---|---|---|---|---|---|
| Georgia (this page) | 14.4 | 1,413 | 14.73 | 7.6 | - |
| Alabama | -0.9 | -30 | +1.37 | -6.7 | 170 |
| South Carolina | -0.7 | +50 | +0.23 | -4.5 | 172 |
| Tennessee | +2.0 | -28 | -1.55 | -6.0 | 239 |
| North Carolina | +0.7 | -1 | -0.71 | +1.3 | 283 |
Georgia against its neighbours in the payback ranking
Your numbers for Georgia
Limits in Georgia
Georgia: with the old 30% credit (IRS, ended 2025) payback would be 10.1 years instead of 14.4, so the calculator starts at 0%. No Georgia export rates in our data: output counts at 14.73 ¢. All limits.
Sources for Georgia
- PVWatts v8 (NLR), 5 Georgia cities and one state point: 1,413 kWh per kW
- EIA-860 2025 and EIA-923 2025: 5,414 MW of solar in Georgia
- EIA-861 2024: 22,579 net-metered systems in Georgia
- EIA retail sales 2025: 14.73 ¢ per kWh in Georgia
- IRS 25D (ended 2025): 10.1 years in Georgia with it; licences and periods for Georgia
More about Georgia
Georgia electricity hub, Georgia EV charging: 2,378 stations, where Georgia ranks for rooftop solar, 14.4 years against 51 states, Georgia calculators.
Questions
Winter cut in Georgia solar output?
December to February give 20% of the year; May makes 148 kWh per kW and Dec 88.
Where in Georgia is solar best?
Yes: 4% between Columbus and Augusta in yearly output.
Net metering in Georgia?
22,579 systems, 4.7 per 1,000 accounts, rank 42.
Georgia utility-scale solar capacity?
5,414 MW in 152 plants (EIA-860), 500 W per resident, rank 15; 4,130 MW proposed.
Georgia sunshine for solar panels?
1,413 kWh per kW a year at the state point, rank 16 of 51; from 1,398 in Columbus to 1,453 in Augusta.
Georgia electricity from solar, what share?
7.6% of 2025 net generation, rank 17 of 51, +0.8 points against the nation.
Solar payback in Georgia?
14.4 years at $3.00 a watt; 12.0 at $2.50; 16.8 at $3.50; 1,413 kWh per kW at 14.73 ¢.
Georgia pays half price for exports?
Payback 28.8 years at a 50% retail share.
CO2 displaced in Georgia?
2.7 t a year on 6 kW at 0.324 kg per kWh.
Federal solar credit in Georgia: still available?
Ended 2025 (IRS 25D); with it Georgia payback would be 10.1 years, not 14.4.