Arizona Public Service (APS)
CAISO
CAISO’s Western Energy Imbalance Market provided participants with $422.44 million in economic benefits during the second quarter of 2025, up 15% compared with the same period year earlier despite no change in membership.
WRA
With data centers contributing to surging load growth, a new report suggests that more Western utilities should adopt clean transition tariffs or even make the tariffs mandatory for certain large customers.
SPP
SPP secured $150 million in financing and entered the second phase of development for its day-ahead market Markets+, the grid operator announced.
WECC
Peak demand in the Western Interconnection hit a record high of 168.2 GW in 2024, reflecting “early effects” of the growth in large loads such as data centers, according to a new WECC report.
Arizona Public Service
Arizona utilities are seeking U.S. Department of Energy funding to help plan for additional nuclear power facilities in the state.
Travel Portland
Bonneville's final record of decision will come as little surprise to those who’ve been following market developments in the West.
Center for Land Use Interpretation
APS officials said they are looking to a non-coal future for the recently closed Cholla coal-fired power plant, despite President Donald Trump’s calls to keep the facility running.
© RTO Insider
FERC’s approval of SPP’s Markets+ funding agreement and its recovery mechanism came as backers of the Western centralized day-ahead market were meeting with the snow-capped Rockies as a backdrop.
New Mexico Renewable Energy Transmission Authority
The two Southwestern utilities are closer to compliance with FERC Order 2023 but still have work to do in response to orders the commission issued.
U.S. Army Corps of Engineers
BPA will be on the hook for nearly $27 million in funding for the next phase of SPP’s Markets+ — and potentially more depending on the market’s final footprint, according to a document SPP filed with FERC.
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