Navajo Tribal Utility Authority
Navajo Tribal Utility Authority (NTUA) is a not-for-profit enterprise of the Navajo Nation serving about 43,250 electric customers across the reservation in Arizona, New Mexico, and Utah. NTUA is owned by the Navajo Nation rather than being an investor-owned utility. Its published electric rate schedules include no EV-specific or time-of-use rate, and its site lists no residential or commercial charger rebate and no managed-charging program. Its Light Up Navajo project connects homes that have no electricity. Federal resources for tribal EV charging include technical assistance from the U.S. Department of Energy Joint Office of Energy and Transportation and state-administered NEVI funding.
At a glance
Municipal- Serves
- Arizona, New Mexico, Utah
- Customers
- 43,250
- EV rate plan
- –
- EVSE rebate
- –
- Managed-charging program
- –
NTUA does not offer an EV-specific or time-of-use electricity rate. Residential customers pay a standard rate built from a fixed monthly service charge ($5.75) plus a per kilowatt-hour energy charge ($0.0740) and a purchased power cost adjustment, with no cheaper overnight window for charging an electric vehicle. That means the cost to charge at home is the same at midnight as it is at 6pm. An EV owner on NTUA service should budget against the standard residential energy charge rather than expect off-peak savings, because no separate vehicle rate exists to enroll in.
NTUA's site lists no rebates for home or commercial charging equipment, so there is nothing to stack with a rate plan and no enrollment requirement to weigh. Drivers seeking help with charger costs should ask NTUA directly and look at federal resources for tribal nations, such as the U.S. Department of Energy Joint Office of Energy and Transportation, rather than expect a utility incentive.
NTUA describes itself as a not-for-profit enterprise of the Navajo Nation, not an investor-owned utility. Across much of its territory the core challenge is first-time grid access: the Light Up Navajo effort still connects homes that have never had electricity. The federal NEVI program provides its funding to states, so public EV charging along highways on Navajo land depends on state NEVI awards, while the Joint Office offers technical assistance to tribal nations on planning and installing chargers.
Service territory
Arizona
- Apache
- Coconino
- Navajo
New Mexico
- McKinley
- San Juan
Utah
- San Juan
Sources
- NTUA, Electric service and ratesRetrieved Oct 2026
- NTUA, Utility RatesRetrieved Oct 2026
- NTUA, About UsRetrieved Oct 2026
- U.S. Energy Information Administration, Form EIA-861 annual data, data year 2025 (customer counts and service-territory counties)Retrieved Oct 2026
- NTUA, Light Up Navajo (rural electrification context)Retrieved Oct 2026
- U.S. DOE Joint Office of Energy and Transportation, Technical Assistance and Resources for Tribal NationsRetrieved Oct 2026
- U.S. Bureau of Indian Affairs, National Electric Vehicle Initiative (NEVI) for Tribal NationsRetrieved Oct 2026
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