generation curtailment
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.
SPP
SPP stakeholders rejected an urgent proposed tariff revision that would help the grid operator connect generation more quickly.
The Brattle Group
California Energy Commission staff presented a study on the size of CAISO’s Extended Day-Ahead Market, finding more benefits as the market’s footprint increases.
© RTO Insider
The PJM Market Implementation Committee discussed a proposal to allow demand response resources to participate in the regulation market when there are energy injections at the same point of interconnection to the distribution grid.
EIA
CAISO’s curtailment of solar and wind power is on the rise, and about three-quarters of curtailments so far this year have been from transmission congestion.
Regenerate California
California's gas-fired power plants experienced a surge of curtailments and spiking emissions during last summer's heat wave, according to the report from an in-state environmental coalition.
MISO’s system can operate on 50% renewable generation if the RTO greenlights dramatically more transmission and its members embrace new technologies.
EIM transfers out of CAISO were on the upswing in March, re-establishing a pattern first seen last spring with California’s growing solar surpluses.
CAISO is curtailing an increasing volume of renewable generation this spring as the ISO sees its “duck curve” already dipping to levels forecast in 2021.
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