Solar panels in Utah: cost, savings and payback

Production per kW
1,484 kWh
per year in Salt Lake City
System for avg home
6.4 kW
16 × 400 W panels
Estimated cost
$16,448
before incentives
Payback
13.5 yrs
year-1 savings $1,249

A south-facing solar array in Salt Lake City produces about 1,484 kWh per kW of panels each year, according to NREL's PVWatts model. The average Utah home uses about 785 kWh a month and pays 13.26¢ per kWh (12-month average). A 6.4 kW system sized to cover that use would cost about $16,448 at $2.57 per watt and save about $1,249 in the first year.

Estimated monthly production (6.4 kW system)

Jan: 478 kWh478JanFeb: 590 kWh590FebMar: 816 kWh816MarApr: 873 kWh873AprMay: 1,019 kWh1,019MayJun: 1,062 kWh1,062JunJul: 1,062 kWh1,062JulAug: 1,019 kWh1,019AugSep: 867 kWh867SepOct: 753 kWh753OctNov: 528 kWh528NovDec: 428 kWh428Dec

Is solar worth it in Utah?

Our model estimates a payback of about 13.5 years. Over 25 years the system would save about $29,644, or $13,196 after its cost. The price you are actually quoted has a big effect on payback, so compare several quotes.

Savings assume the panels' output replaces electricity you would otherwise buy at the average rate. Your utility's rules for exported power (net metering or a lower export rate) can change the real figure.

Federal tax credit and local incentives

The federal residential clean energy credit (Section 25D) does not apply to expenditures made after 31 December 2025, and for a solar system the expenditure is treated as made when installation is complete. That is why these estimates include no federal credit. State, utility and local programs may still be available: search the DSIRE incentives database (listed under Sources) for Utah, and ask installers which programs they use.

Buying vs leasing (or a PPA)

When you buy panels, you pay up front or with a loan and keep all the savings. With a lease or power purchase agreement (PPA), a solar company owns the system on your roof; you pay a monthly fee or a set price per kWh, usually with little or nothing up front. Leases and PPAs need less cash but typically save less over time and can complicate selling your home, so read the contract carefully.

Assumptions

Run the numbers for your home

Frequently asked questions

How much do solar panels cost in Utah?

At $2.57 per watt, a 6.4 kW system sized for an average Utah home would cost about $16,448 before incentives. Quotes vary by installer and roof.

How much electricity does a solar panel produce in Utah?

Each kW of panels in Salt Lake City produces about 1,484 kWh per year, according to NREL PVWatts.

How long does solar take to pay off in Utah?

About 13.5 years for an average home under our assumptions, with no federal tax credit.

Is there still a federal solar tax credit?

The residential clean energy credit (25D) does not apply to expenditures made after 31 December 2025. Check DSIRE for state and local incentives.

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Sources