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.
A group of environmental organizations sued the Bonneville Power Administration in the 9th Circuit Court of Appeals over the agency’s decision to join SPP’s Markets+ instead of CAISO’s Extended Day-Ahead Market.
CAISO is working on an initiative to improve the visibility of distributed battery storage resources on the grid, especially for when they are needed for resource adequacy.
Even in its nonbinding phase, the Western Power Pool’s Western Resource Adequacy Program has been a valuable tool for working toward resource adequacy goals, program participants said.
Although one of the aims of day-ahead markets in the West is to fix a fragmented transmission landscape, some islanded entities will have a tough time navigating seams issues likely to arise as markets take shape, analysts at Aurora Energy Research said during a webinar.
Public Service Company of New Mexico made it official: The utility signed an implementation agreement to begin participating in CAISO’s Extended Day-Ahead Market in fall 2027.
California’s first offshore wind project got a boost when FERC granted CalGrid an abandoned plant incentive for a set of OSW-related transmission projects in the Humboldt County area.
Local line congestion is the primary cause of renewable curtailment in California — and the amount is increasing each year, CAISO said during its second-quarter Market Performance and Planning Forum.
Portland General Electric told Oregon regulators that after decades of electricity flowing from north to south through its system during the summer, the flow on a typical summer day has reversed.
CAISO dismissed Powerex’s contention that the ISO only recently has “revealed” that participation in its EDAM is voluntary at the balancing authority level but not voluntary for “individual customers” operating within the BA participating in the market.
CAISO is soliciting bids for two transmission projects in the San Francisco Bay Area to prepare the state for more projected data center load in the coming decade.
