Adding a battery backup to your solar panel system can help you store electricity for later use, provide backup power during outages, and potentially earn incentives from your utility company. For Utah homeowners, one of the most important programs to investigate in 2026 is Rocky Mountain Power’s Wattsmart Battery Program.
However, federal tax credits and state incentives have changed, so it is important to understand which benefits may still be available before investing in a home battery system.
Rocky Mountain Power’s Wattsmart Battery Program
Rocky Mountain Power offers incentives to eligible residential customers who install qualifying battery storage systems and enroll in its Wattsmart Battery Program.
The program is designed to help support the electrical grid by allowing participating batteries to be managed during certain periods of high electricity demand. In exchange, homeowners may receive an upfront incentive and ongoing bill credits.
Upfront battery incentives
Depending on the battery model and its qualifying power rating, the program has listed the following example incentives:
| Battery model | Example upfront incentive |
|---|---|
| Tesla Powerwall 3 | $2,000 |
| FranklinWH aPower 2 | $2,000 |
| FranklinWH aPower X | $1,000 |
| SolarEdge Energy Bank | $1,000 |
| Fortress Power Envy True | $1,000 |
| Sonnen Core | $1,000 |
These amounts are examples from the program’s eligible battery listings and are subject to change. Always verify the current incentive, model eligibility, and program requirements before purchasing equipment.
Ongoing annual bill credits
In addition to the upfront incentive, participating homeowners may qualify for annual bill credits.
The program has listed the following credit structure for eligible residential batteries:
- Years 2–4: $15 per kilowatt (kW) annually, up to $100 per year.
- Year 5 and beyond: $50 per kW annually, up to $250 per year.
The exact compensation depends on the applicable program terms and the qualifying battery rating. Enrollment also involves a multiyear commitment, so homeowners should review the participation requirements before signing up.
To learn more or check current eligibility, visit the Rocky Mountain Power Wattsmart Battery Program.
Are Federal Tax Credits Still Available for Solar Batteries?
Federal tax incentives have changed significantly for residential clean energy systems.
The federal Residential Clean Energy Credit, which previously allowed eligible homeowners to claim a tax credit of up to 30% of qualifying solar and battery storage expenses, is no longer available for new residential clean energy property expenditures under the current law for property placed in service after December 31, 2025.
This means homeowners planning a new battery installation in 2026 should not assume they can deduct 30% of the project cost through this former residential tax credit.
Because tax circumstances can vary, homeowners with installations completed in earlier years or projects spanning different tax years should consult the IRS guidance or a qualified tax professional.
Does Utah Offer a State Tax Credit for Solar Batteries?
Utah homeowners should also investigate state incentives before purchasing a battery.
The former Utah residential renewable energy systems tax credit is not currently available for new residential installations in 2026. As a result, the Rocky Mountain Power Wattsmart Battery Program may be one of the more relevant incentives for eligible homeowners considering battery storage.
State and utility programs can change, so check current requirements rather than relying on older solar incentive articles or estimates from previous years.
Is a Solar Battery Worth It?
The value of a battery depends on how you use electricity, your utility rate plan, the size of your solar system, and what you want the battery to accomplish.
A home battery can offer several benefits:
Backup power during outages. A properly configured battery can keep selected appliances and essential circuits operating when the grid goes down. The amount of time your home can run on battery power depends on your available storage, electricity consumption, and the equipment installed.
Greater use of your own solar electricity. Instead of sending all excess solar production to the grid, you may be able to store some of that energy for use in the evening or at other times when your panels are not producing enough electricity.
Potential utility incentives. Eligible homeowners may receive upfront payments and recurring bill credits through programs such as Wattsmart.
However, batteries have significant upfront costs. The value of the incentives should be weighed against the purchase price, installation costs, equipment lifespan, and the amount of electricity you expect to use.
A battery purchased primarily for backup power may provide peace of mind even when the financial payback is relatively long. A battery purchased primarily to save money should be evaluated using actual utility rates and expected savings.
What to Check Before Adding a Battery to Existing Solar Panels
If your solar panels are already installed, there are several important questions to ask your installer.
- Is your existing system compatible? Some installations can accommodate an additional battery relatively easily, while others may require a different inverter, additional electrical equipment, or other modifications.
- Will the battery provide backup power? Not every battery installation automatically powers your home during an outage. Ask whether the system includes the necessary transfer equipment and which circuits will remain operational.
- Does the battery qualify for utility incentives? Verify the exact model, power rating, enrollment requirements, and current incentive amount before signing a contract.
- How will utility participation affect your battery? Understand when the utility may manage battery charging or discharging, what that means for your available backup reserve, and whether you can set a minimum backup charge.
- What is the total installed cost? Request an itemized estimate that includes the battery, inverter or electrical upgrades, labor, permits, and any additional backup equipment.
- What are the ongoing savings? Ask for an estimate based on your actual electricity bills and utility rate plan, rather than a generic payback calculation.
Final Thoughts
For Utah homeowners considering a solar battery in 2026, Rocky Mountain Power’s Wattsmart Battery Program is worth investigating. Eligible systems may qualify for an upfront incentive and ongoing annual bill credits, helping offset some of the cost of battery storage.
At the same time, the former federal residential clean energy tax credit and Utah’s former residential renewable energy tax credit are not available for new residential installations under the current 2026 rules.
The best next step is to confirm your utility eligibility, compare the current incentives for qualifying battery models, and obtain an installation estimate tailored to your existing solar system.
Important: Incentive amounts, eligible equipment, and program rules may change. Verify all program details directly with Rocky Mountain Power before making a purchase deci
