Board backs pre-development of 'Flashes' microgrid project using CPUC MIP grants; $3.7M pre-dev funding anticipated

Jun 23, 2026

Supervisors approved Microgrid Incentive Program (MIP) agreements and reimbursement contracts to begin two-site "Flashes" pre-development work (Hartley and Lucerne). The project would provide 24-hour microgrids and potential revenue but would require extensive hydrologic, FERC and CEQA work before construction.

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The Board of Supervisors approved two Microgrid Incentive Program agreements with PG&E and development reimbursement agreements with Trane to begin pre-development work on the Flashes (Fire-main Linked Auxiliary Supply Hydraulic Energy Storage) project at Hartley and Lucerne. The motions passed 4-0.

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