Energy Payoff

What home solar actually costs you in 2026

The 30% federal tax credit ended on 31 December 2025. Most solar calculators still subtract it, which makes every payback figure they print about three years too short. This one does not.

Your house

State15.3 cents per kWh, 1,450 kWh a year per installed kW.Average monthly electricity bill

Take twelve months of bills and divide by twelve. One summer bill will overstate it.Installed cost$2.90 per wattThe national average is around $2.90 a watt before any incentive. A quote is the real number.Utility price rise3% a yearElectricity has risen about 3% a year over the long run, faster than that since 2021.

Pays for itself in

12 yr

At today's bill, rising

System you need

8.8 kW

about 22 panels

Cost after credits

$25,412

no federal credit in 2026

25 year net gain

$40,862

savings minus what it cost

What you have saved, year by year

Your monthly bill

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On grid power you pay $180 a month, every month, for as long as you live there.

An 8.8 kW system in Texas makes about 12,706 kWh a year, which covers most of the 14,118 kWh your house uses. It costs $25,412 installed, and because the federal credit ended on 31 December 2025 that is also what you pay. Over 25 years you would otherwise hand the utility $78,752.

Where solar pays back fastest

Not the sunniest states, the expensive ones. Solar competes against the price of the power you are buying now, so a moderate roof in a state with costly electricity beats a perfect roof where power is cheap.

Solar panel cost in Hawaii5 yr, 42.5 cents a kWh
Solar panel cost in California6 yr, 31.8 cents a kWh
Solar panel cost in Connecticut8 yr, 28.5 cents a kWh
Solar panel cost in Massachusetts8 yr, 30.5 cents a kWh
Solar panel cost in Rhode Island8 yr, 28 cents a kWh
Solar panel cost in Maine9 yr, 24 cents a kWh

See all 51 states ranked

Why every other calculator is wrong this year

Section 25D, the 30 percent residential clean energy credit, ended on December 31, 2025 under the One Big Beautiful Bill. There was no phase down to 26 percent and then 22 percent the way earlier expirations worked. It went from 30 to zero on one day.

Most solar calculators were written while the credit existed and still subtract it. On a $25,412 system that is about $7,624 of imaginary money, which shortens the payback by roughly three years. If the payback you were shown somewhere else looked much better than the one above, that is almost certainly why.

State and utility incentives are a separate matter and some are still running. Those are worth chasing, and they are specific to where you live, so ask your own utility rather than trusting a national figure.