December 09, 2022
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A newly updated WEIM map includes WAPA's Desert Southwest Region. | CAISO

WAPA Desert Southwest Region to Join Western EIM

Federal Power Marketing Administration Split Between CAISO and SPP Markets

Sep 16, 2021
Hudson Sangree
Company News / Western Energy Imbalance Market (WEIM) / FERC & Federal

WAPA's Desert Southwest Region said it plans to join CAISO's Western Energy Imbalance Market, further splitting the PMA's regions between the ISO and SPP.

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