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Utah

Rocky Mountain Power electricity rates & savings

Understand your bill, compare rate plans, optimize EV charging, and model solar savings for Rocky Mountain Power customers. Gleam helps Rocky Mountain Power customers find the cheapest times to charge an EV, compare rate plans, and optimize solar and battery usage in Utah.

Current rate plans

PlanTypeGood for
Standard / flat rateStandardHomes with steady usage across the day
EV Time-of-UseTime-of-use (TOU)EV owners who can charge overnight or on weekends

Published electricity rates

Rate tierPrice (est.)
Standard flat rate (est.)$0.10–$0.12/kWh
On-peak / peak (TOU or EV plan)$0.18–$0.22/kWh
Off-peak / super off-peak$0.04–$0.06/kWh
Solar export credit (net metering)$0.06/kWh (Net Billing (Schedule 137))

Rates last verified: July 2026. Effective March 2026.

Official sources: Residential rates, Tariff sheet, and EV program.

Is the TOU or EV plan worth it?

If you drive 700+ miles/month and can charge overnight or on weekends, Rocky Mountain Power's time-varying rate often saves money — peak rates can run 5.5× off-peak. If most of your usage happens during peak hours (often late afternoon), TOU may cost more than a flat plan.

Calculate charging, usage, and solar economics

Use rates published for Rocky Mountain Power to estimate home electricity use, EV charging, solar savings, or solar payback with rate inflation and EV impact.

Electricity usage →EV grid charging →Solar payback →Home solar savings →

Solar & net metering

Rocky Mountain Power uses Net Billing (Schedule 137) net metering with export credits around $0.06/kWh.

Example EV charging savings

Typical EV: 11,000 miles/year (3,143 kWh)

ScenarioEst. annual cost
Charge during peak ($0.22/kWh)$691/yr
Charge off-peak ($0.04/kWh)$126/yr
Estimated savings (off-peak vs peak)$565/yr

Assumes 11,000 mi/yr, 3.5 mi/kWh, and 100% of EV charging at each rate tier. Real savings depend on your driving, charger, and schedule.

Frequently asked questions

What are Rocky Mountain Power's off-peak hours?

11pm–7am

Can I switch Rocky Mountain Power rate plans anytime?

Most utilities let you change rate plans, but some TOU or EV schedules require enrollment, smart meters, or a minimum commitment. Confirm on your utility's website.

Is Rocky Mountain Power's time-of-use plan worth it for EV charging?

If you drive 700+ miles/month and can charge overnight or on weekends, Rocky Mountain Power's time-varying rate often saves money — peak rates can run 5.5× off-peak. If most of your usage happens during peak hours (often late afternoon), TOU may cost more than a flat plan.

Related guides

When Is the Cheapest Time to Charge Your EV at Home?How to Read a Time-of-Use Electric BillSolar Net Metering: Are You Exporting for Pennies?EV Rate Plan vs Standard Rate: Which Saves More?

Personalize this for your home

If you're a Rocky Mountain Power customer, add your provider in Gleam, link your EV, and upload your bill. Gleam finds off-peak charging windows, rate plan savings, and solar opportunities based on your actual usage.

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Gleam is an independent service and is not affiliated with, endorsed by, or sponsored by Rocky Mountain Power or any other utility company. Rocky Mountain Power is used descriptively to identify the service territory only. Rate information is for reference — always confirm current tariffs on your utility's official website before making billing decisions.