City of Idaho Falls and solar
City of Idaho Falls is a municipal utility serving about 29,403 homes in Idaho. Here's what its rates and export rules mean for solar: for a typical customer, solar is not worth it.
- Average price (2026 est.)
- 10.3¢19% below Idaho average
- Typical bill
- $95925 kWh a month
- Exports credited
- ~44%Varies by utility
- Typical payback
- 22.6 yrs3.9 kW, cash
Export rules for City of Idaho Falls customers
Varies by utility (Idaho rule).
Idaho has no statewide net metering law; each utility's rules are set by the PUC. Idaho Power moved new customers to real-time net billing, paying time-varying export rates (for June 2025-May 2026 roughly 15.7 cents on summer peak but about 3 cents most of the year). Avista still offers net metering; Rocky Mountain Power's Idaho terms have been under review.
Solar for a typical City of Idaho Falls home
| System | 3.9 kW (50% of 925 kWh/month) |
|---|---|
| Cost | $15,005, $9,003 after incentives |
| First-year savings | $464 |
| Payback | 22.6 years |
| 25-year net | $1,027 |
Uses the utility's average price.
Solar adoption
- Homes with solar (2025)
- 254
- Share of customers
- 0.9%
- Residential solar capacity
- 2 MW
- Residential customers
- 29,403
EIA-861, 2025.
Questions about City of Idaho Falls and solar
Does City of Idaho Falls have net metering?
City of Idaho Falls follows Idaho's rules: Idaho has no statewide net metering law; each utility's rules are set by the PUC. Idaho Power moved new customers to real-time net billing, paying time-varying export rates (for June 2025-May 2026 roughly 15.7 cents on summer peak but about 3 cents most of the year). Avista still offers net metering; Rocky Mountain Power's Idaho terms have been under review.
How much does electricity cost with City of Idaho Falls?
Residential customers paid an average of 9.6¢ per kWh in 2025 (EIA), about 10.3¢ adjusted to 2026. The typical home uses 925 kWh a month, a bill of about $95.
Is solar worth it with City of Idaho Falls?
For a typical customer, solar is not worth it: a 3.9 kW system costing about $9,003 pays back in about 22.6 years, with $1,027 net over 25 years.
How many City of Idaho Falls customers have solar?
About 254 homes had net-metered solar at the end of 2025, roughly 0.9% of residential customers (EIA-861).
Legal name: City of Idaho Falls - (ID) (EIA ID 9187). Data: EIA-861 2025 and monthly data through 2026, state policy research October 2026.