Georgia Power Overnight Advantage (TOU-OA-15): What Will It Cost You?
Overnight Advantage is a residential rate of the Georgia Power Company (Georgia Power). Enter your monthly usage to see your estimated bill on this plan and how it compares with Georgia Power’s standard Residential Service.
Sources, dates, and what’s not included
Rate schedules
- Nights & Weekends (TOU-REO-19): rates in effect from June 1, 2026, checked against the official schedule on October 5, 2026. Sources: Schedule TOU-REO-19 (Time of Use - Residential Energy Only), Schedule TOU-FCR-7 (Time of Use Fuel Cost Recovery), Schedule ECCR-15 (Environmental Compliance Cost Recovery), Schedule DSM-R-16 (Demand Side Management Residential), Schedule MFF-11 (Municipal Franchise Fee).
- Overnight Advantage (TOU-OA-15): rates in effect from June 1, 2026, checked against the official schedule on October 5, 2026. Sources: Schedule TOU-OA-15 (Time of Use – Overnight Advantage), Schedule TOU-FCR-TP-5 (Time of Use Fuel Cost Recovery Three-Part), Schedule ECCR-15 (Environmental Compliance Cost Recovery), Schedule DSM-R-16 (Demand Side Management Residential), Schedule MFF-11 (Municipal Franchise Fee).
- Residential Service (R-31): rates in effect from June 1, 2026, checked against the official schedule on October 5, 2026. Sources: Schedule R-31 (Residential Service), Schedule FCR-27 (Fuel Cost Recovery), Schedule ECCR-15 (Environmental Compliance Cost Recovery), Schedule DSM-R-16 (Demand Side Management Residential), Schedule MFF-11 (Municipal Franchise Fee).
Account questions
- City limits (Nights & Weekends (TOU-REO-19), Overnight Advantage (TOU-OA-15), and Residential Service (R-31)): Inside City Limits applies in cities that have a franchise agreement with Georgia Power. Cities without one are billed as Outside City Limits. If you aren’t sure, contact Georgia Power at 1-888-660-5890. Sources: Schedule MFF-11 (Municipal Franchise Fee), Georgia Public Service Commission, Georgia Power Bill Calculator.
Not included
- Local Tax Adjustment (Schedule LT-1), which passes payments to local governments on to customers in that area, at amounts that vary by place (Georgia Power, Schedule LT-1 (Local Tax Adjustment))
- State and local sales tax (the “Sales Tax” line on Georgia Power’s sample bill) (Georgia Power, Understanding Your Bill (sample bill))
- Discounts and charges for the conditions listed under “Account conditions this estimate can’t cover” in the calculator.
Notes
- Annual amounts are estimates at current rates, not a forecast of future bills. Monthly amounts are the year’s total divided by 12.
- Overnight Advantage: Fuel is estimated at the three-period TOU-FCR-TP prices. If your bill uses the two-period TOU-FCR prices, the fuel price for Off-Peak and Super Off-Peak hours differs.
- Residential Service: Seasons and rate versions are applied by calendar month of use. Georgia Power applies them by billing month, and each bill covers use since the previous meter reading, so bills for months near a season change (May and June, September and October) or a rate change can differ from this estimate.
- Holidays listed in the rate schedules are billed like weekends. Usage on those days is also spread like a weekend day.
- In 2026, Independence Day falls on Saturday, July 4, so Friday, July 3 is billed as the holiday.
- Your monthly kWh is spread over the hours of the day with a typical hourly pattern for homes in nine counties served by Georgia Power (Fulton, DeKalb, Chatham, Clayton, Muscogee, Richmond, Bibb, Columbia, and Clarke), GA, derived from the End-Use Load Profiles for the U.S. Building Stock. The pattern comes from building energy models calibrated to measured data, not from your own meter, so your bill can differ.
- The apartment pattern is based on 1,519 building models, compared with 3,201 for houses, so it is less certain.
- Data includes information from the ResStock™ dataset developed by the National Laboratory of the Rockies (NLR) with funding from the U.S. Department of Energy (DOE). Licensed under CC BY 4.0.
- See the methodology for how the usage patterns are made and what the estimates include.
- Choose your Type of home and enter your Monthly usage in kWh.
- Optionally, choose how much evening use you could move to overnight. Time-of-day plans cost less when more of your use falls outside the peak hours.
- Answer the questions under Your account.
- Read the result: your estimated bill on this plan first, then the other plans with the difference from the standard rate, where the cheapest plan changes, and a line-by-line breakdown.
Overnight Advantage rates
Rate versions are applied by calendar month of use. Georgia Power applies them by billing month, and each bill covers use since the previous meter reading, so the bill for a month when rates change can differ from this estimate. (Sources: Schedule TOU-OA-15 (Time of Use – Overnight Advantage), Rules, Regulations and Rate Schedules for Electric Service)
You can’t switch to another plan for 12 months after you sign up. (Sources: Schedule TOU-OA-15 (Time of Use – Overnight Advantage), Terms & Conditions, Time-of-Use Overnight Advantage Tariff)
Only homes with a smart (AMI) meter installed can take Overnight Advantage. (Source: Terms & Conditions, Time-of-Use Overnight Advantage Tariff)
Fuel is estimated at the three-period TOU-FCR-TP prices. If your bill uses the two-period TOU-FCR prices, the fuel price for Off-Peak and Super Off-Peak hours differs. (Sources: Schedule TOU-FCR-TP-5 (Time of Use Fuel Cost Recovery Three-Part), Schedule TOU-FCR-7 (Time of Use Fuel Cost Recovery), Overnight Advantage)
Rates in effect from June 1, 2026. Checked against the official rate schedule on October 5, 2026.
- Basic Service Charge: $0.4603 a day, whatever you use.
- Time of Use Fuel Cost Recovery Three-Part: $0.052269 per kWh for Peak use, $0.03869 per kWh for Off-Peak use, and $0.034747 per kWh for Super Off-Peak use.
- Environmental Compliance Cost Recovery: 13.0205% of the base bill (Basic Service Charge and electricity usage).
- Demand Side Management Residential: 1.1969% of the base bill (Basic Service Charge and electricity usage).
- Municipal Franchise Fee: 3.0843% (Inside City Limits) or 1.1995% (Outside City Limits) of all other charges, before taxes.
October–May
| Period | Price | Hours |
|---|---|---|
| Off-Peak | $0.103598/kWh | Every day 7 a.m.–11 p.m. |
| Super Off-Peak | $0.022272/kWh | Every day midnight–7 a.m., 11 p.m.–midnight |
June–September
| Period | Price | Hours |
|---|---|---|
| Peak | $0.303495/kWh | Weekdays 2 p.m.–7 p.m. |
| Off-Peak | $0.103598/kWh | Weekdays 7 a.m.–2 p.m., 7 p.m.–11 p.m.; weekends and holidays 7 a.m.–11 p.m. |
| Super Off-Peak | $0.022272/kWh | Every day midnight–7 a.m., 11 p.m.–midnight |
Holidays
These days are billed like weekends. If a holiday on a set date falls on a Saturday, the Friday before is billed as the holiday. If it falls on a Sunday, the following Monday is.
| Holiday | Date |
|---|---|
| Independence Day | July 4 |
| Labor Day | First Monday in September |
What an EV adds on this plan
A house that uses 750 kWh a month adds an EV that needs 200 kWh a month at home, charged midnight–6 a.m. every day. Annual estimate at current rates, shown as a monthly average:
| Case | Per month | Increase |
|---|---|---|
| Without the EV | $134.57 | — |
| With the EV | $146.97 | $12.41 a month ($148.89 a year) |
These figures use the default City limits “Inside City Limits” for Overnight Advantage. To use yours, choose it under Your account in the calculator.
To try your own vehicle, mileage, and charging hours, and to compare plans with the EV, use the EV charging cost calculator.
How the estimate works
- For each month of the current year, your monthly kWh is spread over the days and hours with the typical hourly pattern for your type of home. Weekdays and weekends have different patterns, and holidays use the weekend pattern.
- If you shift evening use, that share of each day’s use from 5 p.m.–9 p.m. moves evenly to midnight–6 a.m., and your total use stays the same.
- Each hour is matched to the plan’s time period for that month and day, priced at the plan’s rate, and added up. The fixed charge (a monthly amount, or a daily amount times the days in the month), the per-kWh adjustment, and any credit you qualify for are separate lines. Each line is rounded to the cent, and the bill is the sum of the lines.
- On a tiered plan, the price depends on the month’s total kWh, not the hour. Use up to the tier limit is priced at the first tier’s rate, and use above it at the next tier’s rate.
- Some plans add charges that are a percentage of other charges: of the base bill (the fixed charge and electricity usage), or of all the charges before them, before taxes. These come after the other lines and are figured on the rounded amounts, then rounded to the cent. When a percentage depends on one of your answers in the calculator, the percentage for your answer is used.
- The annual estimate adds up 12 monthly bills at the rates in effect now. Every plan gets the same usage, so the differences come only from the rates.
- If a plan’s rates are being rechecked, for example after a scheduled rate change, the calculator shows its estimate at the last checked rates and stops ranking it until the check is done.