Lake County hears update on Poe Mountain “FLASHES” pumped-hydro microgrid project

Jul 24, 2025

County staff and Trane presented technical and funding progress on the Poe Mountain FLASHES pumped-storage hydro and solar project, which won early placement in PG&E’s Microgrid Incentive Program and aims to provide wildfire-fighting water, multi-day backup power for North Lakeport circuits and revenue to fund feasibility studies.

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Ben Rickleman, deputy county administrative officer, told the Lake County Board of Supervisors on an informational item that county staff and Trane are advancing a project known as FLASHES — “fire main linked auxiliary supply hydraulic energy storage” — centered on Poe Mountain.

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