11 plants · 3.2 GW total capacity · across 2 states
Tucson Electric Power Co operates 11 power plants with 3.2 GW total capacity. Primarily solar (4 plants, 36 MW). Parent organization: Fortis.
Largest is Springerville (1779 MW Sub. Coal); oldest active is H Wilson Sundt Generating Station (1962); newest is Roadrunner Reserve Phase 1 (2025); top state is Arizona (10 plants).
Subsidiary of Fortis
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