Is solar worth it in Mississippi?

What drives solar payback in Mississippi

Mississippi homeowners pay about 14.7¢/kWh, which is 3.7¢ below the national average. A rooftop here generates roughly 1300 kWh per kW each year — about the typical US figure. On exports, Mississippi offers limited net metering: Exports credited below retail, and with the federal credit gone since 2025 payback rests on self-consumption — check your utility’s terms.

A worked example

For a Mississippi home with a $129/month power bill (typical household usage at Mississippi’s rate):

That nets out to a payback of about 22.8 years — shorter than simply dividing net cost by year-one savings, because power prices climb ~2.5%/yr so your savings grow each year. Year-one savings already reflect Mississippi’s below-retail export rate (you save full value on the power you use as it’s made, less on what you export), which is why they’re lower than the bill. Assumes 3.00 $/W installed before incentives and a typical 40% self-consumption; your actual cost, roof and usage will differ — adjust the calculator above.

Who supplies your power in Mississippi

Mississippi has two investor-owned utilities: Entergy Mississippi, covering the western half and the Jackson metro, and Mississippi Power, a Southern Company subsidiary serving the south-east and Gulf Coast. Beyond them, a large share of the state is served by electric cooperatives supplied through Cooperative Energy (formerly South Mississippi Electric), and the northern counties fall under the Tennessee Valley Authority via local power distributors. The Mississippi Public Service Commission sets net-metering terms for the two IOUs and the co-ops it regulates; TVA-area customers instead follow TVA's own connection and generation programmes, which differ, so confirm which grid you are actually on before you size anything.

What you’re paid for what you export

Don't be fooled by the name of Mississippi's rule: the PSC calls it Net Metering, but it's net billing in practice, and the difference costs you. Exported kilowatt-hours are credited at roughly the utility's avoided cost — near wholesale, well below the 14.5-cent retail rate you pay coming the other way. The rule softens this with a modest per-kilowatt-hour adder, plus a further adder for low-income participants, and those enhancements are locked in as long-running legacy credits once you sign up. Softened, though, is all it is: power you send out earns a fraction of what power you use on-site saves you, so self-consumption is the whole game here. And if you're in TVA territory, your co-op handles all this differently again — read your actual tariff.

Mississippi incentives & taxes in 2026

Mississippi offers you almost nothing on top. No state income-tax credit, no rebate for a typical home system, no SREC market — and since the federal residential credit is no longer available for 2026 installs, there's no cushion from Washington either. The one exception, a low-income provision folded into the PSC's net-metering rule, won't apply to most homeowners. Payback therefore rests almost entirely on the retail purchases you avoid by using your own power. One loose end: some sources cite a sales-tax exemption on solar equipment and others dispute it, so confirm that point directly with Entergy, Mississippi Power or your co-op before it features in your maths.

The 30% federal credit ended on 31 December 2025 and can now only reach a homeowner indirectly through a lease or PPA. Check the current state and utility programs on DSIRE’s Mississippi list, then type any incentive into the calculator above to see how it shortens your payback.

What solar costs in Mississippi

The South's cheaper labour and lighter permitting show up in the quotes: $2.40 to $2.90 a watt is the going rate for good residential work here, undercutting most of the country, though small systems and premium kit push past that. For a 7-8 kW home system, expect $17,000 to $23,000 before financing — and since there's nothing to subtract from it, that figure is essentially the real one. Several itemised quotes are worth the effort.

The honest verdict for Mississippi

The sun does its part in Mississippi — around 1,300 kWh per installed kW each year — but the rules don't. Export credits sit near wholesale and no meaningful incentive props up the numbers, so everything turns on how much of your own generation you use. Homes with heavy daytime load — air-conditioning grinding through those long, hot summers — can still come out ahead over the long run, but payback stretches well past the sub-decade timelines that incentive-rich states enjoy. Size conservatively to what you actually consume, and treat anything exported as a bonus, not the plan.

Driving electric — or heating electric — in Mississippi?

Your home electricity rate also sets what it costs to charge an EV and whether a heat pump beats a gas furnace. See the Mississippi EV charging cost and the Mississippi heat pump vs gas comparison.

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