Wärtsilä delivers energy storage system in California to REV Renewables

Wärtsilä has reached substantial completion on a 125 MW/250 MWh energy storage system project in Calexico, California, USA, for REV Renewables. 

The construction of the facility, called the LeConte energy storage project, is part of the LeConte system that was approved by the California Public Utilities Commission in early 2022. The energy storage system for REV Renewables helps fulfill the resource adequacy obligations of California utilities and supports various ancillary efforts for CAISO.

Located near the California/Mexico border, the LeConte facility is situated at a major junction point for energy producers in the CAISO and San Diego Gas & Electric territories that are importing and exporting energy between the U.S. and Mexico. Moreover, the facility will be used to follow the automatic generation control signal to maintain system frequency and perform peak day operations to relieve congestion on transmission lines from the abundance of solar photovoltaic resources in the area.