Grid & off-grid

Net metering calculator, Utah

Model your solar bill under Rocky Mountain Power's Schedule 137, where new customers earn a modest Export Credit Rate rather than the retail-based net metering older accounts still keep.

Your numbers

1 Project details Optional
Shown on your exported report. Leave blank to skip.
2 Your usage and system
Find this on a recent utility bill, usually labeled kWh used.
Use your quoted or planned system size. Panel count times panel wattage divided by 1,000 gives a rough figure.
Solar production swings seasonally; pick a specific month type to see how your bill shifts.
Most utilities charge a flat customer or connection fee regardless of usage.
3 Your location and rate
Defaulted to Utah's average peak sun hours. Adjust if you know your local figure.
Defaulted to Utah's current average residential rate. Your utility's actual rate may differ.
Utah typically credits exports around 60% of retail. Export credit set below retail under the transitional export rate approved by the Utah PSC.
Some utilities charge progressively higher per-kWh rates as monthly usage climbs into higher tiers.
Accounts for inverter loss, wiring loss, dust, and temperature derate combined.
Informational only. A monthly cycle means unused export credit does not carry to the next bill; annual and rolling cycles do.

How it works

Three steps to your Utah solar bill estimate

Step 1

Enter your usage, system size, and season

Pull your monthly kWh from a recent bill and enter your planned or quoted system size in kW. Since Schedule 137's export rate is lower in winter than summer, try modeling both seasons separately rather than relying on a single annual average. Select a season to model a specific month rather than only an annual average.

Step 2

Confirm your rate, tier, and export credit

A typical Rocky Mountain Power residential rate is filled in by default. Since Schedule 137's Export Credit Rate sits well below retail, choose the export credit level closest to it rather than assuming full 1:1 crediting.

Step 3

Compare the result to a full retail scenario

Run the net billing vs net metering comparison tool to see how much Schedule 137's Export Credit Rate costs you compared to the older Schedule 135's full 1:1 crediting.

How net metering works in Utah

Rocky Mountain Power's original net metering closed years ago

Rocky Mountain Power (PacifiCorp), Utah's only investor-owned utility, closed its original net metering program, Schedule 135, to new applicants back in November 2017. A transitional program, Schedule 136, briefly followed but also closed, in October 2020. Every new residential solar customer since then falls under Schedule 137, Net Billing Service, the utility's current export structure.

Net Billing Service credits exports at a rate below retail

Under Schedule 137, excess generation is credited at an Export Credit Rate rather than the previous retail-based structure. As of March 1, 2026, the Utah Public Service Commission's approved rate is 4.855 cents/kWh for June through September and 4.033 cents/kWh for October through May, both down from the prior year's rate, a gap wide enough that a self-consumption battery often pays for itself faster than exporting the same production would. This rate is reviewed annually, so it doesn't stay fixed the way older grandfathered accounts do. The net billing vs net metering comparison tool can help you compare this current rate against what the older Schedule 135 offered. Against the 13 cent retail rate, those export credits work out to about 37 percent in summer and 31 percent in winter, so pick the 30 percent option in the export credit dropdown, worth about 3.9 cents, as the closest match; the 60 percent typical rate option would overstate the credit by about 3 to 4 cents.

A handful of Utah municipalities offer their own programs

While not required by state law, some Utah municipalities have voluntarily developed their own net metering programs outside of Rocky Mountain Power's structure, including the City of St. George and Murray City Power. If either serves your address, their locally set terms may differ meaningfully from Rocky Mountain Power's Schedule 137, and the tax credit and rebate estimator for Utah can total up what's available regardless of which one applies to you.

Existing Schedule 135 and 136 customers keep their original terms

If you installed solar before either closure date and enrolled under Schedule 135 or the transitional Schedule 136, your original terms continue rather than automatically shifting to the newer Net Billing Service. Confirming exactly which schedule an existing system is on matters if you're evaluating a home with solar already installed. Compare this with self-consumption battery before you choose a path.

Interconnection and the off-grid comparison

Whether you fall under Schedule 137 or a municipal program, connecting a system still requires a standard interconnection application; the grid interconnection cost estimator covers what to expect there. And even at Utah's reduced export rate, staying grid-tied remains far cheaper than going fully off-grid, and the grid tie vs off grid comparison tool shows how much cheaper. If any term on this page is unfamiliar, the buy-all sell-all entry in our Glossary explains it in plain English.

Questions

Frequently asked

Rocky Mountain Power's original Schedule 135 net metering closed in 2017. New customers now fall under Schedule 137, Net Billing Service, credited at a lower Export Credit Rate reviewed periodically by the Utah PSC. Some cities like St. George offer their own separate programs.

The average residential rate in Utah runs about 11.5 to 13.4 cents per kWh, depending on usage tier and the source cited, and has been rising after a recent rate case. Rocky Mountain Power's new customers fall under Schedule 137, Net Billing Service, which credits exports below retail.

Schedule 137, Net Billing Service, is the current tariff for new Rocky Mountain Power solar customers, replacing the older Schedule 135 net metering program that closed to new applicants in November 2017. It credits exports at an Export Credit Rate that's periodically reviewed by the Utah Public Service Commission, rather than a fixed retail-based rate.

Yes, though not required by state law. The City of St. George and Murray City Power have both voluntarily developed their own net metering programs, separate from Rocky Mountain Power's Schedule 137. If either serves your address, checking their specific locally set terms is worth doing.

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