The more than 5,000 MW of batteries connected to the CAISO grid are playing in increasing role in maintaining reliability, a report from the ISO's Market Monitor shows.

Low hydro output, a summer heat wave and high prices during evening ramps helped boost CAISO’s load-serving costs by 3% last year despite lower gas prices.

CAISO’s Market Monitor found no evidence of market manipulation or strategic outages during the rolling blackouts of mid-August.

CAISO won FERC approval for its second effort to allow generators to recover the costs of higher natural gas prices.

CAISO presented the Western Energy Imbalance Market’s Governing Body its plan for accommodating hybrid generation and storage resources.

CAISO’s congestion revenue rights auction continued to lose money in 2019 but less than in prior years, the Department of Market Monitoring said.

CAISO reported lower wholesale electricity prices during the third quarter, driven by lower natural gas costs and fewer transmission constraints.

CAISO is moving ahead with a plan to stem systemwide market power, even though not everyone is convinced the effort is necessary.

FERC approved CAISO’s proposal to limit the megawatt quantity of the bid adder for the Western Energy Imbalance Market.

FERC approved CAISO’s plan to reduce the capacity available in its congestion revenue rights auctions but rejected a proposal to cut CRR payments.