January 24, 2025

Western Energy Imbalance Market (WEIM)

CAISO
CAISO Revises Policy Roadmap to Highlight Priorities
CAISO revamped its policy initiatives roadmap to reflect its to top strategic goals including ensuring resource adequacy and expanding its Western market role.
Steven Baltakatei Sandoval, CC BY-SA 4.0, via Wikimedia Commons
FERC OKs WEIM Changes for Washington Cap-and-trade Costs
The Western EIM tariff changes allow generators to include the costs of GHG compliance associated with Washington’s cap-and-trade program in their energy bids.
© RTO Insider LLC
Washington Poised to Become Net Electricity Importer by 2050
The push for decarbonization will transform Washington from a key exporter of electricity to a net importer by mid-century, a state agency has found.
© RTO Insider LLC
CAISO Approves Day-ahead Market for Western EIM
CAISO's Board of Governors and the Western Energy Imbalance Market Governing Body approved an extended day-ahead market for the WEIM, calling it a milestone.
Washington State Democrats
Wash. Bill Seeks to Accelerate Renewable Buildout
A bill to boost construction of renewable power in Washington picked up support — ranging from strong to conditional — at a key Senate hearing.
© RTO Insider LLC
NV Energy Blames ‘Heavy Wet Snow’ for New Year’s Outages
NV Energy told Nevada regulators that “extreme weather” and wet snow caused outages that cut power to nearly 124,000 customers at the start of the year.
New Mexico Public Regulation Commission
New NM Commissioner Steps Down over Qualifications
Less than two weeks after the governor appointed new members to the New Mexico PRC, one member has resigned and a replacement has been named.
©RTO Insider LLC
FERC, PacifiCorp Reach $4.4M Settlement in Tx Ratings Probe
FERC approved a $4.4 million settlement with PacifiCorp that ends an enforcement probe into the utility’s transmission line rating practices.
California Assembly
Plans Revive to Make CAISO a Western RTO
A new legislative push for multi-state CAISO governance and the ISO's drive to add an extended day ahead market top this year's agenda.
New Mexico Public Regulation Commission
NM Rings in New Year with Reconfigured Utility Commission
New Mexico Gov. Michelle Lujan Grisham appointed three members to the state’s revamped Public Regulation Commission, which previously had five elected members.

Want more? Advanced Search