Tucson Electric Power (TEP), a utility in Southern Arizona with around 420,000 customers, has received approval to build two 10MW energy storage systems, including one co-located with solar, from the state’s regulator.
Arizona Corporation Commission (ACC) approved the projects on Wednesday, for which TEP had issued a request for proposals (RfP) to lease last summer. TEP reached long-term agreements with E.On Climate & Renewables, an arm of the European utility which last year split off from its parent to work on clean, sustainable technologies and innovation, and NextEra Energy Resources, a wholesale electricity supplier and itself a subsidiary of a utility, US-headquartered NextEra Energy.
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