Powin Energy Corp is to provide San Diego Gas & Electric (SDG&E) with a 6.5MW battery energy storage system in California.

The project, which requires the approval of the California Public Utilities Commission, will be located at an orange processing facility in Escondido and aims to enhance grid and electricity reliability.

The Powin Energy’s Stack140 system will optimise the output from renewable sources with grid demand that doesn’t always coincide with the intermittent production of distributed resources, the company said.

The Stack140 is a modular, purpose-built 140 kilowatt-hour battery array and is available in both indoor and NEMA 3R outdoor models.

The system is operated by Powin’s proprietary bp-OS software.

Powin Energy president Geoffrey Brown said: “I appreciate the confidence SDG&E has shown in Powin Energy by selecting us for this important project.”

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