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Tariff data · 2026-08-26
Mississippi Power Co · MS

Residential Electric Service (R-60) Three-Phase

When does peak hit on Mississippi Power Co’s Residential Electric Service? The hour never matters here — only the season. Rates peak December–March.

  • off-peak10.53¢
Weekdays
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Weekends
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Weekends are off-peak all day — the cheapest time to run anything you can schedule.

What does Residential Electric Service cost a year?

Treat these figures with care: its fixed charge works out to $3,044 a year, far above the $5–40 a month most US residential tariffs charge. That is sometimes real — island and rural cooperatives do bill this much — and sometimes a unit error in the source database. We have not changed the published value, and we leave this plan out of the plan-to-plan comparisons. Check the tariff document below before relying on it.
HouseholdUsesPer yearWorks out to
Apartment

One or two people, no central air, no electric heat

4,866 kWh$3,55773.1¢ / kWh
Family home

Three or four people with central air conditioning

9,453 kWh$4,07743.1¢ / kWh
Home with an EV

Same house, plus an electric car charging overnight

13,103 kWh$4,54334.7¢ / kWh

Estimates, not quotes. We run three made-up but realistic households through this tariff hour by hour for a full year — including the way air conditioning loads the afternoon and an EV loads the small hours. Your own bill depends on when you actually use electricity, which is exactly the thing a per-kWh number hides.

What you actually pay

PeriodRateApplies when
off-peak10.53¢ up to 650 kWh12.61¢ up to 1000 kWh13.97¢midnight–midnight, June–September
off-peak10.53¢ up to 650 kWh12.13¢ up to 1000 kWh12.13¢midnight–midnight, April–May, October–November
off-peak10.53¢ up to 650 kWh12.49¢ up to 1000 kWh12.49¢midnight–midnight, December–March

Plus a fixed charge of $8.34 per day — so longer months cost more before you use a single kWh.

Should you be on Residential Electric Service?

The hour of day does not change what you pay here — the month does. Running the same house through the full year, July costs about $385 and February about $296. That $88 swing is part rate and part weather, and it is the reason a budget built on your spring bill will break in July.

There is a usage cliff to watch. The first 650 kWh each month are billed at 10.5¢; past that line the rate steps up to 12.6¢ — 20% more for every unit after. The last kilowatt-hour of a heavy month is the expensive one, which is why cutting a little off a big month saves more than cutting the same amount off a small one.

Before a single kilowatt-hour moves, this plan charges $3,044 a year in fixed fees. On the apartment above that is 86% of the whole bill; on the house with a car charging in it, 67%. Fixed charges are invisible in a cents-per-kWh comparison and they punish small users hardest — if you use very little electricity, the headline rate is the least important number on this page.

If this is new to you

Where this comes from

Effective
2026-01-13

the date this tariff took effect

Covers
delivery + supply

우편번호 매핑에서 이 지역 서비스 종류가 Bundled — 배달과 공급을 함께 판다

Enrollment
open to new customers

Tariff document: https://www.mississippipower.com/content/dam/mississippi-power/business/pricing-and-rates/2026/residential/1_Sch%201%20R-62I_ESB_JAL.pdf