Navajo Tribal Utility Authority and solar
Navajo Tribal Utility Authority is a state-owned utility serving about 38,553 homes in Arizona, New Mexico, Utah. Here's what its rates and export rules mean for solar: for a typical customer, solar is a close call.
- Average price (2026 est.)
- 16.6¢8% above Arizona average
- Typical bill
- $83501 kWh a month
- Exports credited
- ~34%Net billing (reduced export credit)
- Typical payback
- 15.7 yrs3 kW, cash
Export rules for Navajo Tribal Utility Authority customers
Net billing (reduced export credit) (Arizona rule).
For APS, TEP and UNS customers, electricity you use directly saves you the full retail rate, but power you send to the grid is credited at a lower 'export rate' that is locked for 10 years from when you connect. The export rate drops up to 10% each year for new customers; it is about 5.55 cents for APS (Sept 2026 tranche) and 4.62 cents for TEP (Oct 2026 tranche). SRP, a public utility, has its own solar price plans.
Solar for a typical Navajo Tribal Utility Authority home
| System | 3 kW (88% of 501 kWh/month) |
|---|---|
| Cost | $9,800, $8,800 after incentives |
| First-year savings | $583 |
| Payback | 15.7 years |
| 25-year net | $6,260 |
Uses the utility's average price.
Solar adoption
- Homes with solar (2025)
- —
- Share of customers
- —
- Residential solar capacity
- —
- Residential customers
- 38,553
EIA-861, 2025.
Questions about Navajo Tribal Utility Authority and solar
Does Navajo Tribal Utility Authority have net metering?
Navajo Tribal Utility Authority follows Arizona's rules: For APS, TEP and UNS customers, electricity you use directly saves you the full retail rate, but power you send to the grid is credited at a lower 'export rate' that is locked for 10 years from when you connect. The export rate drops up to 10% each year for new customers; it is about 5.55 cents for APS (Sept 2026 tranche) and 4.62 cents for TEP (Oct 2026 tranche). SRP, a public utility, has its own solar price plans.
How much does electricity cost with Navajo Tribal Utility Authority?
Residential customers paid an average of 16.4¢ per kWh in 2025 (EIA), about 16.6¢ adjusted to 2026. The typical home uses 501 kWh a month, a bill of about $83.
Is solar worth it with Navajo Tribal Utility Authority?
For a typical customer, solar is a close call: a 3 kW system costing about $8,800 pays back in about 15.7 years, with $6,260 net over 25 years.
How many Navajo Tribal Utility Authority customers have solar?
Navajo Tribal Utility Authority did not report residential net-metered solar to EIA for 2025.
Legal name: Navajo Tribal Utility Authority (EIA ID 13314). Data: EIA-861 2025 and monthly data through 2026, state policy research October 2026.