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Balance of Plant (BOP) San Diego Gas & Electric Microgrid

San Diego, CA

Four microgrids at SDG&E substations used Mitsubishi storage to provide islanding power and support CAISO during normal ops as part of the OIR Track 4 project.

Details

Description

The four microgrids were part of the Microgrid OIR (“OIR Track 4”) designed for reliability and resiliency. They provide power during islanding events to customers and critical facilities and contribute energy to the California Independent System Operator (CAISO) during non-islanding events. Located adjacent to SDG&E substations on utility-owned land, the microgrids did not require major or minor use permits, though ministerial permits or consultations with governing authorities (SDG&E as the AHJ) may have been necessary. Each microgrid included up to 10MW/40MWh of energy storage from Mitsubishi, and the sites used laydown yards as their footprint.

Market Sectors

Energy
Microgrids

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