Mississippi · Investor Owned · serves 94 ZIP codes
Mississippi Power Co rate plans
2 residential plans are currently open to new customers. It does not price by hour, so shifting when you use power won’t change your bill here.
What does Mississippi Power cost at a normal month’s usage?
A household using 1,000 kWh a month pays about $4,405 a year on the cheapest of the 2 plans we can price here — Residential Electric Service (R-60) Single-Phase — and $4,405 on the priciest. Same house, same wires.
| A month of | Cheapest, a year | On which plan | Priciest |
|---|---|---|---|
| 500 kWh | $3,678 | Residential Electric Service (R-60) Single-Phase | $3,678 |
| 1,000 kWh | $4,405 | Residential Electric Service (R-60) Single-Phase | $4,405 |
| 2,000 kWh | $5,968 | Residential Electric Service (R-60) Single-Phase | $5,968 |
The same plan is cheapest at every level of use here, so the answer does not turn on how much you use. Estimates from the filed tariff, priced hour by hour on a household with central air — not a quote.
What does Mississippi Power Co's residential rate cost?
Mississippi Power Co files a single residential tariff, so there is no plan to choose between — everyone served here is on the same terms. That makes this page short on comparison and long on one question instead: what does that tariff actually do to a bill?
Priced hour by hour across a full year, a small apartment on this tariff comes to about $3,557 and a three-bedroom house with central air to about $4,077 — an effective 73.1¢ and 43.1¢ per kilowatt-hour once the fixed charge is spread across everything used.
With one plan and no hourly pricing, the only lever left is using less. Moving laundry or car charging to the middle of the night changes nothing here, which is worth knowing before you rearrange your evenings for no reason.
Expect the bill to swing with the weather rather than with anything you decide: the same house costs around $385 in July and $296 in February. Budget against the higher figure and the summer bill stops being a surprise.
Which plan would cost you least?
No bill upload, no sign-up. Tell us roughly what a month costs you and what runs on electricity — we price every plan against the same household and show you the gap.
That adds up to 609 kWh a year. Compare it to the total on your bill and adjust until it’s close.
| Plan | Per year | Vs best |
|---|---|---|
| Residential Electric Service (R-60) Single-PhaseThe hour never matters here — only the season. Rates peak December–March. | $3,108 | — |
| Residential Electric Service (R-60) Three-PhaseThe hour never matters here — only the season. Rates peak December–March. | $3,108 | +$0 |
An estimate, not a quote. Supply charges move month to month, and your real usage pattern is not exactly this one. What it does show reliably is the gap between plans — both are priced off the same assumptions.
Making sense of the bill
- How to read your electric bill
Four kinds of charge, only two of which you can do anything about.
- Fixed charges on your electric bill: what they are and why they matter
The line that makes cents-per-kilowatt-hour comparisons quietly wrong.
- How to compare electricity plans without getting it wrong
Six things that break a comparison, and the order to check them in.
Residential Electric Service (R-60) Single-Phase
The only residential plan Mississippi Power currently files that we can price — everything about it is on this page.
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¢
Weekends are off-peak all day — the cheapest time to run anything you can schedule.
What does Residential Electric Service cost a year?
| Household | Uses | A month | Per year | Works out to |
|---|---|---|---|---|
| Apartment One or two people, no central air, no electric heat | 4,866 kWh | $296 | $3,557 | 73.1¢ / kWh |
| Family home Three or four people with central air conditioning | 9,453 kWh | $340 | $4,077 | 43.1¢ / kWh |
| Home with an EV Same house, plus an electric car charging overnight | 13,103 kWh | $379 | $4,543 | 34.7¢ / 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
| Period | Rate | Applies when |
|---|---|---|
| off-peak | 10.53¢ up to 650 kWh12.61¢ up to 1000 kWh13.97¢ | midnight–midnight, June–September |
| off-peak | 10.53¢ up to 650 kWh12.13¢ up to 1000 kWh12.13¢ | midnight–midnight, April–May, October–November |
| off-peak | 10.53¢ 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.
Who can be on Mississippi Power’s Residential Electric Service (R-60) Single-Phase?
Eligibility is not our judgement — it is written into the tariff Mississippi Power filed. This is what that document says:
This rate schedule applies to electric service used by one customer in a single family dwelling on one premise for residential purposes only. Residential purposes may include rental to roomers of not more than four rooms in such dwelling, and serving meals to not more than eight boarders.
Quoted from the filed tariff. Your utility decides eligibility, not us; check with them before you switch.
If this is new to you
- Tiered billing for electricity: why the last kWh costs more
A cheap allowance, then a cliff. Where the cliff sits is the whole game.
- Should you switch to a time-of-use electricity plan?
A wide peak-to-off-peak gap is a lever, not a saving. Levers need something to move.
- Why is my electric bill so high in summer?
Usually three causes at once, and only one of them is your air conditioner.
- Why is my electric bill so high? Seven causes, in the order to check them
Seven causes, ranked by how often they are the answer. Only two are about using more.
Where this comes from
- Effective
- 2026-01-13
the date this tariff took effect
- Covers
- delivery + supply
the ZIP-code service map lists this territory as bundled, so the utility sells delivery and supply together
- 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