Home Batteries in Idaho Falls: What to Know
Idaho Falls averages about 3 hours of grid outages a year, which is the main reason homeowners here install storage. A standard 13.5 kWh battery runs your essentials (fridge, lights, internet) for roughly 15 hours and installs for around $14,000.
On bills, a battery in Idaho Falls saves about $176 a year by storing cheap power and using it at peak times (a $0.04/kWh local peak-to-off-peak gap), or roughly -$10,734 over 15 years. Note: the 30% federal battery tax credit expired at the end of 2025, so Idaho state and utility programs are now the main incentives. The local utility is Rocky Mountain Power. Most homeowners buy storage for resilience first — the bill savings are a bonus.
Cost & Backup Breakdown
Standard 13.5 kWh battery in Idaho Falls
15-Year Bill Savings Projection
Time-of-use arbitrage only — the backup/resilience value is on top of this.
Available Rebates
Common Questions
How much does a home battery cost in Idaho Falls?
A standard 13.5 kWh home battery in Idaho Falls, Idaho costs about $14,000 installed. The federal 25D battery credit expired December 31, 2025.
How much backup power does a battery give in Idaho Falls?
A 13.5 kWh battery runs a Idaho Falls home's essentials for about 15 hours. Idaho Falls averages roughly 3 hours of grid outages a year, so a single battery covers most events.
Will a battery save money in Idaho Falls?
On time-of-use bills, a 13.5 kWh battery saves about $176 per year in Idaho Falls — around -$10,734 over 15 years. Most Idaho Falls homeowners buy a battery primarily for backup power; the bill savings are a bonus.
Compare Battery Costs Near Idaho Falls
Planning other home-energy upgrades?
Solar, batteries, heat pumps and EV chargers all work together. Run the numbers on the rest of your electrification plan: