UT · Solar

Solar quotes in Layton, UT.

One real quote from a vetted local Layton installer, sized to your roof, your bill, and every federal + state rebate you qualify for.

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8 kW
Average system size: $2.65/W
Average cost (USD): 11 yrs
Average payback: 130+
Local installers

Why solar in Layton

If you are buying a Layton home that already has solar, one date decides much of what the array is worth to you: whether the interconnection was applied for before or after October 30, 2020. Systems from before that date sit on the older arrangement; systems from after it are on Schedule 137 Net Billing, where exports earn about a third of the retail rate. It is not visible from the roof and it will not be in the listing.

The date that separates two tariffs

Rocky Mountain Power Schedule 137 Net Billing Service applies to customers who applied for interconnection after October 30, 2020. Applications before that date fall under the earlier arrangement.

The difference is substantial. Net billing nets generation against consumption instantaneously and pays the export credit for surplus, about 4.855 cents per kWh in summer and 4.033 in winter as of March 1, 2026, against a retail rate around 12 to 13 cents.

So two identical arrays on two identical houses can produce quite different bills depending only on when the interconnection application was filed.

Ask the seller for the interconnection application date and the programme the system is on, and ask to see the documentation rather than accepting a description.

Whether it transfers, and for how long

Ask specifically whether the arrangement transfers to a new owner on sale, what has to be done to effect that, and by when. An arrangement that does not survive the transaction is worth nothing to you.

Ask whether there is a defined term. Some legacy arrangements run for a fixed number of years from interconnection, and the remaining term is a specific number worth establishing rather than assuming.

Note that the Schedule 137 export credit itself is recalculated every March and the new rate applies to existing customers, so even a net billing system does not have a fixed rate for its life.

Get the answers from Rocky Mountain Power rather than from the seller or the listing agent. It is the organisation that will actually administer the account.

The rest of the checks on an existing array

Ask for production history rather than a production estimate. An installed system has real data, and real data is worth far more than a model.

Ask for the installation date, the equipment make and model, and what warranty remains on the panels, the inverter and the workmanship. Inverters typically have shorter lives than panels.

Ask about the roof underneath. A system on a roof near the end of its life implies a removal and reinstallation cost that belongs in your purchase arithmetic rather than arriving later as a surprise.

Ask whether the system is owned outright, financed, or on a lease or power purchase agreement. Those are entirely different things to inherit, and only the first is straightforwardly an asset.

Rebuilding the estimate from current figures

For a new system, the 30 percent federal Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025, and the Utah residential solar tax credit reached zero for systems installed from 2024 onward.

Section 48E survives at 30 percent for third-party owners under leases and power purchase agreements.

A new system goes onto Schedule 137 Net Billing: retail value for what you consume as it is generated, the seasonal export credit for the rest, reset each March.

For an existing system, start with the interconnection application date and whether the arrangement transfers. That single fact changes what the array is worth to you more than any other, and it should be established before you agree a price.

Incentives & rebates

Net metering: Schedule 137 Net Billing, instantaneous, annually reset

Utah no longer offers net metering to new residential solar customers on Rocky Mountain Power. Anyone who applied for interconnection after October 30, 2020 is on Schedule 137 Net Billing Service. Net billing differs from net metering in a way that changes how a system should be designed: generation is netted against household consumption instantaneously rather than across a billing period, so electricity you are using at the moment it is generated displaces the full retail rate, while anything beyond your instantaneous demand is exported and earns the export credit rate instead. As of March 1, 2026 that credit was approximately 4.855 cents per kWh for summer exports, defined as June through September, and 4.033 cents per kWh for winter exports from October through May, against a Utah residential retail rate around 12 to 13 cents. So an exported kilowatt hour is worth roughly a third of a self-consumed one. The second feature matters as much as the first. The export credit is recalculated annually and takes effect each March 1, and the revised rate applies to existing customers as well as new ones. Customers do not lock in a rate at installation, and the figure has fallen across successive recalculations. Utah municipal utilities such as Provo City Power and Murray City Power are outside Schedule 137 and set their own terms.

Related Utah resources

Utah solar incentives & rebates Full breakdown of federal, provincial, and utility programs.

How payback works in Utah

System cost: $21,200
Estimated net cost: $21,200
Estimated payback: ~13.1 years
25-year net savings: ~$19,300

These figures are illustrative; your actual quote reflects your roof, sun exposure, and local utility rates.

Frequently asked questions

Why does October 30, 2020 matter?

Rocky Mountain Power Schedule 137 Net Billing applies to customers who applied for interconnection after that date. Applications before it fall under the earlier arrangement, which values exported electricity differently.

I am buying a house with solar. What should I ask?

The interconnection application date, which programme the system is on, whether the arrangement transfers to a new owner, what has to be done to effect that, and whether there is a defined remaining term. Ask to see documentation, not a description.

Does a legacy arrangement lock in a rate?

Ask, and get the answer from Rocky Mountain Power. Note that the Schedule 137 export credit is recalculated every March and applies to existing customers, so a net billing system does not have a fixed rate for its life.

What else should I check on an existing array?

Production history rather than an estimate, the installation date, equipment models and remaining warranties, the condition of the roof underneath, and whether the system is owned outright, financed, or on a lease or power purchase agreement.