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Tucson Electric Power: California ISO Welcomes BPA and Tucson Electric Power to the WEIM
May 04, 2022
TUCSON, Arizona, May 4 -- Tucson Electric Power issued the following news release:

The Bonneville Power Administration (BPA) and Tucson Electric Power (TEP) have become the newest participants in the Western Energy Imbalance Market (WEIM), with both utilities formally joining today.

"We are honored to welcome the Bonneville Power Administration and Tucson Electric Power to the Western Energy Imbalance Market," said California Independent System Operator (ISO) . . .

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