HomeWattCost

Georgia Power R-31 vs TOU-OA-15

For a typical Georgia home using 1,080 kWh a month, R-31 is cheaper by about $76 a year ($177 against $183 a month). R-31 is cheaper below about 2,150 kWh a month and TOU-OA-15 above it, with the same daily pattern of use.

Utility Georgia PowerTariffs checked 2026-09-28Typical use 1,080 kWh/mo, Georgia

Head to head

ScenarioR-31TOU-OA-15Cheaper
Typical home, per month$177$183R-31
All-in price per kWh16.4¢16.9¢R-31
Home + EV, charged at the cheapest hour$220$200TOU-OA-15
Home + EV, plugged in at 6 pm$220$239R-31
Fixed charge$16.00$16.00

Typical home: Georgia average use by month (EIA), shaped hour by hour (NREL ResStock), before taxes. EV: Tesla Model Y Long Range AWD, 1,000 miles a month; cheapest start any hour on R-31, 12 am on TOU-OA-15.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
R-31$181$159$128$123$141$220$278$277$196$130$128$160
TOU-OA-15$171$159$126$125$146$243$293$294$222$134$125$156

R-31: price by hour

July weekday.

Same price all day
21.0¢12a3a6a9a12p3p6p9p12a

TOU-OA-15: price by hour

July weekday.

Off-peakMid-peakPeak
6.0¢15.7¢39.9¢15.7¢6.0¢12a3a6a9a12p3p6p9p12a

R-31 or TOU-OA-15: common questions

Is R-31 or TOU-OA-15 cheaper?

For a typical Georgia home using 1,080 kWh a month, R-31 is cheaper by about $76 a year ($177 against $183 a month). R-31 is cheaper below about 2,150 kWh a month and TOU-OA-15 above it, with the same daily pattern of use. Adding an EV driven 1,000 miles a month and charged at each plan’s cheapest hour, TOU-OA-15 gives the lower total ($200 against $220 a month).

What is the difference between R-31 and TOU-OA-15?

R-31 is tiered: the price per kWh rises with monthly use, with a fixed charge of $16.00 a month. TOU-OA-15 is time-of-use (summer weekdays: Mid-peak 7 am–2 pm, Peak 2 pm–7 pm, Mid-peak 7 pm–11 pm; lowest price 11 pm–7 am next day), with a fixed charge of $16.00 a month.

More Georgia Power comparisons

How the two plans work

R-31: Residential Service

  • In July the first 650 kWh a month cost 13.8¢ each; then 20.5¢ above 650 kWh a month, then 21.0¢ above 1,000 kWh a month.
  • An average Georgia home (1,478 kWh in July) goes past the first tier, so extra load such as an EV is priced higher.
  • Fixed charge: $16.00 a month.

TOU-OA-15: Overnight Advantage

  • Mid-peak 7 am–2 pm, Peak 2 pm–7 pm, Mid-peak 7 pm–11 pm on July weekdays; 5 of 24 hours carry the top price of 39.9¢.
  • The cheapest July weekday hour costs 6.0¢, so moving 1 kWh out of the top hours saves 33.9¢.
  • January weekdays range from 6.0¢ to 15.7¢.
  • Summer pricing applies Jun–Sep; winter pricing Oct–May.
  • Weekends differ: Mid-peak 7 am–11 pm.
  • Fixed charge: $16.00 a month.

Your own pattern of use decides the winner: compare every Georgia Power plan on your usage, or see all Georgia Power plans, sources and peak hours.