CAISO/WEIM

The California Independent System Operator serves about 80% of California's electricity demand, including the service areas of the state's three investor-owned utilities. It also operates the Western Energy Imbalance Market, an interstate real-time market covering territory that accounts for 80% of the load in the Western Interconnection.
EMC Engineering Services
D.C. Circuit Upholds FERC PURPA Decision Without Chevron Deference
The D.C. Circuit Court of Appeals upheld an earlier decision that sided with FERC on a PURPA case without using Chevron deference, agreeing with the commission's statutory interpretation.
Enel North America
Google, SRP Team up on Long-duration Storage
SRP and Google are partnering to study the real-world performance of non-lithium-ion, long-duration energy storage technologies.
CAISO
CAISO Price Formation Proposal Looks to Reduce ‘Unnecessary’ Market Mitigation

After years in the making, CAISO released a price formation proposal intended to reduce “unnecessary” market power mitigation, strengthen reliability and provide consistent pricing incentives in the WEIM and future EDAM.

Office of Sen. Jeff Merkley
West Coast Senators Urge Passage of Calif. Pathways Bill
Six Western U.S. senators came out in support of the California legislation needed to transform CAISO’s market into an independent regional energy market, saying in a letter to Gov. Gavin Newsom the bill promises "improved grid reliability and significant energy cost savings.”
U.S. Army Corps of Engineers
BPA Transmission Pause Questioned During Workshop
The Bonneville Power Administration estimates it would take up to seven years and billions of dollars in upgrades for the agency to handle the 65 GW of transmission service requests in the queue. 
Shutterstock
West Must Step up Gas-electric Coordination, WECC Panelists Say
Coordination between the gas and electric industries is becoming increasingly crucial to meet demand and to tackle extreme weather events, panelists participating in a WECC webinar argued.
PG&E
Western Utilities Set Sights on RTO After DAM Choice
Four Western utility executives participating in an Energy Bar Association webinar presented their reasoning for why they ultimately chose either SPP’s Markets+ or CAISO’s EDAM, with some eyeing the creation of a full regional transmission organization in the future.
© RTO Insider LLC
Pathways Initiative Unveils RO Proposed Name, Bylaws
The West-Wide Governance Pathways Initiative is preparing to file the incorporation documents for the independent RO that will govern CAISO’s energy markets, while funding challenges remain.
Shutterstock
CAISO’s EDAM Scores Simultaneous Wins at FERC

CAISO’s EDAM clinched a set of wins when FERC approved the market’s revised congestion revenue allocation model and authorized participation for the EDAM’s first two members — PacifiCorp and Portland General Electric.

Lawrence Berkley National Lab
New Data Show Queues Shrank in 2024 as Reforms Implemented
Two new data sets show the industry has started to cut back on record high interconnection queue levels from last year as reforms have started to take hold.

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