Arizona Public Service and Puget Sound Energy have moved a step closer to linking up with CAISO’s Energy Imbalance Market (EIM).

Present and former regulators debated the costs and benefits of rooftop solar and the pros and cons of net metering at the NARUC Summer Meetings.

The western Energy Imbalance Market continued to boost demand for California’s surplus renewable generation last quarter.

Berkshire Hathaway Energy is contesting FERC’s June decision to revoke the ability of the company’s subsidiaries to sell power at market-based rates.

FERC rejected the CAISO proposal to prohibit EIM participants from implementing economic bidding at the market’s external interties.

CAISO's Department of Market Monitoring reported that solar power surpassed wind in 2015, becoming the largest source of renewable generation.

FERC  revoked authorization for Berkshire Hathaway Energy subsidiaries to sell wholesale power at market-based rates in four  balancing authority areas.

FERC upheld a decision that prohibits two companies’ generating units from offering energy into the Western EIM at prices above default energy bids.

The expanded western EIM provided California a new outlet for surplus renewables, according to CAISO.

Idaho Power signed an agreement with CAISO to become the sixth utility to join the western Energy Imbalance Market.