AltaGas Ltd. celebrated the opening of its Pomona Energy Storage Facility at the site of its existing Pomona natural gas-fired co-generation facility in the East Los Angeles Basin of Southern California.
The project has 20 MW of energy storage capacity. In addition to AltaGas constructing the Facility on time and on budget, the company completed construction of the lithium-ion battery system in less than four months.
"We are pleased to advance our California power strategy by bringing 20 MW of battery storage online within a precedent setting four months," said David Harris, President and CEO of AltaGas. "Providing energy from electricity stored in lithium-ion batteries provides clean reliable energy that complements California's renewable energy portfolio while adding to the versatility of our asset base which is well situated for pursuing other energy storage developments."
In August 2016, AltaGas' unit, AltaGas Pomona Energy Storage Inc., signed a 10-year energy storage resource adequacy purchase agreement with Southern California Edison for 20 MW of energy storage at AltaGas' existing Pomona facility.
Under the terms of the ESA, AltaGas will provide SCE with 20 MW of resource adequacy capacity for a continuous four-hour period, which represents the equivalent of 80 MWh of energy discharging capacity.
AltaGas will receive fixed monthly resource adequacy payments under the ESA and will retain the rights to earn additional revenue from the energy and ancillary services provided by the lithium-ion batteries. Commercial operations of the Facility under the terms of the ESA began on December 31, 2016.
"Offsetting periods of peak power with 80 MWh from battery storage is enough power to feed the electricity needs of approximately 15,000 homes over the four-hour period," said Harris.