HomeWattCost

MLGW RS vs RS TOU

For a typical Tennessee home using 1,198 kWh a month, RS TOU is cheaper by about $54 a year ($161 against $165 a month). RS TOU stays cheaper at every level of use from 200 to 2,500 kWh a month with the same daily pattern of use.

Utility MLGWTariffs checked 2026-09-28Typical use 1,198 kWh/mo, Tennessee

Head to head

ScenarioRSRS TOUCheaper
Typical home, per month$165$161RS TOU
All-in price per kWh13.8¢13.4¢RS TOU
Home + EV, charged at the cheapest hour$199$191RS TOU
Home + EV, plugged in at 6 pm$199$196RS TOU
Fixed charge$15.10$15.10

Typical home: Tennessee 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 RS, 12 am on RS TOU.

Month by month

Typical-home bill each month on each plan.

PlanJanFebMarAprMayJunJulAugSepOctNovDec
RS$185$214$138$127$124$169$207$216$171$136$124$171
RS TOU$177$203$131$115$113$175$215$225$178$123$112$163

RS: price by hour

July weekday.

Same price all day
12.8¢12a3a6a9a12p3p6p9p12a

RS TOU: price by hour

July weekday.

Off-peakPeak
10.9¢20.8¢10.9¢12a3a6a9a12p3p6p9p12a

How the two plans work

RS: Residential Standard

  • In July the first 500 kWh a month cost 12.9¢ each; then 12.8¢ above 500 kWh a month.
  • An average Tennessee home (1,494 kWh in July) goes past the first tier, so extra load such as an EV is priced higher.
  • Fixed charge: $15.10 a month.

RS TOU: Residential Time-of-Use

  • Peak 1 pm–7 pm on July weekdays; 6 of 24 hours carry the top price of 20.8¢.
  • The cheapest July weekday hour costs 10.9¢, so moving 1 kWh out of the top hours saves 9.9¢.
  • January weekdays range from 10.9¢ to 15.0¢.
  • Weekends follow a different schedule from weekdays.
  • Fixed charge: $15.10 a month.

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