AVANGRID has joined the California Independent System Operator’s (CAISO) Western Energy Imbalance Market (WEIM) as the first generation-only entity. As a WEIM market participant, AVANGRID will support and strengthen the energy system of 11 Western states with almost 2 GW of installed emissions-free capacity from facilities that the company operates in the region.

“Joining the WEIM as the first generation-only entity represents a meaningful milestone for the CAISO and for us, and we’re proud of the work that our team has done to help strengthen the West’s energy system,” said Pedro Azagra, CEO of AVANGRID. “As the third largest renewable energy operator in the U.S., we are proud to contribute to the country’s energy transition with clean, affordable, and reliable power.”

The WEIM is a real-time wholesale energy trading market that enables its participants in the West to buy and sell energy when needed and uses advanced market systems to find the lowest-cost option to serve customer demand in real time.

Regional coordination in generating and delivering the lowest-cost energy to participants, enhances reliability while providing environmental benefits by integrating renewable energy into the grid more efficiently.