Utah · Idaho · Wyoming
Wattsmart Battery
Rocky Mountain Power
A utility-controlled battery program for eligible Rocky Mountain Power customers in Utah, Idaho and Wyoming. July 2026 changes limit enrollment incentives and ongoing bill credits.
Last reviewed November 10, 2026 · Published by VPPdirectory. Confirm current terms with the administrator.
Published rates
Residential enrollment incentive from July 1, 2026
$1,000 below 10 kW; $2,000 at 10 kW or greater
The single-battery output threshold applies. Multiple smaller batteries do not combine into a higher award: the notices give two 5 kW batteries as a $1,000 example. One enrollment incentive per residential system.
Scope: Residential
Primary source for this rateResidential ongoing bill credit
$15/kW-year from year two, capped at $100/year
After the four-year agreement, continued participation can receive $50/kW-year, capped at $250/year. Credits are spread monthly, apply only to energy charges and do not roll over.
Scope: Residential
Primary source for this rateCommercial enrollment
$200/kW for qualifying systems up to 30 kW
Larger systems need utility pre-approval and a custom incentive offer. Confirm treatment of a system exactly at 30 kW before relying on an ongoing-credit schedule.
Scope: Commercial
Primary source for this rateUtah commercial ongoing bill credit
$15/kW-year from year two, capped at $300/year
For systems smaller than 30 kW. After the five-year agreement, continued participation can receive $50/kW-year, capped at $750/year. Monthly energy-charge credits do not roll over.
Scope: UT · Commercial
Primary source for this rateIdaho and Wyoming commercial ongoing bill credit
$15/kW-year from year two, capped at $250/year
For systems smaller than 30 kW. After the five-year agreement, continued participation can receive $50/kW-year, capped at $750/year. Monthly energy-charge credits do not roll over.
Scope: ID, WY · Commercial
Primary source for this rateThese are published program terms, not a guaranteed payment. Actual earnings depend on measured performance, event counts, and what your aggregator passes through.
Before you enroll
- Utility and account
- An eligible Rocky Mountain Power account in Utah, Idaho or Wyoming. This guide does not establish another utility's offer.
- Equipment
- Use the state's exact approved battery/inverter list. Powerwall 3's listed route requires new batteries through the customer-generation application.
- Enrollment status
- Utility approval and onboarding are required. July 2026 incentive changes apply; earlier transition deadlines have passed.
- Dispatch
- The utility can remotely charge and discharge enrolled batteries for grid management. This is not a fixed per-event payment offer.
- Backup and controls
- Only energy remaining when an outage begins is available for backup. Confirm reserve settings and any manufacturer fees before agreeing to utility control.
- Your net payment
- Ask who receives the incentive, what provider or financing charges apply, and when your share is paid. Published rates are not a personal earnings quote.
How the program works
The utility coordinates enrolled batteries for grid management. New projects must use the current state notice and an approved equipment configuration. The older incentive transition required application, Permission to Operate and onboarding deadlines ending November 1, 2026; it is not an available shortcut for a new application today.
This guide covers Rocky Mountain Power's three-state offer. It does not establish Pacific Power eligibility in Oregon. Reported Idaho dispatch operations describe past performance, not capacity reserved for a new participant. Ask the utility to confirm the current account, equipment and contract before installation.
Who qualifies
- An eligible Rocky Mountain Power service account in Utah, Idaho or Wyoming; a state address alone is insufficient.
- The exact battery/inverter must be approved for the state. The published lists differ; do not assume every product from a listed brand qualifies.
- Complete customer-generation approval, installation, program application and utility onboarding. The listed Powerwall 3 route is limited to new batteries submitted through the customer-generation application.
How to enroll
Review the state-specific notice with a qualified installer. Confirm equipment eligibility and interconnection before purchase, then follow the utility's customer-generation and Wattsmart application steps. Request the final incentive, term, bill-credit cap and any manufacturer charges in writing.
Questions buyers ask
Does a larger battery always produce a larger residential rebate?
No. The July 2026 notices use a single-battery output threshold and a capped residential award. They explicitly say multiple smaller batteries do not qualify for more than one incentive merely by adding their ratings together.
Is the ongoing payment a per-event incentive?
No. The notices describe annual bill-credit rates divided across monthly bills, with annual caps and no rollover. Use the agreement's qualifying output and customer category, not a generic payment for each event.
Will the battery always be full during an outage?
No guarantee is made. The terms give the utility remote control and state that backup depends on the energy remaining when an outage begins. Review access, connectivity, backup needs, additional manufacturer fees and early-exit repayment conditions before enrolling.