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Sonoma Water to replace aging rooftop solar with microgrid at 404 Aviation to secure 72‑hour backup power
Summary
Sonoma Water recommended and the board approved a microgrid services agreement to replace the 20‑year rooftop solar system at 404 Aviation Boulevard with a fixed‑tilt solar and battery system to provide 72 hours of isolated power for the building, reduce generator costs and save an estimated $900,000 over 20 years.
The Sonoma County Board of Supervisors approved a Sonoma Water recommendation to enter a microgrid services agreement to replace the aging rooftop array at 404 Aviation Boulevard with a solar‑plus‑battery microgrid.
Sonoma Water Principal Engineer Dale Roberts told the board the existing 20‑year system is near the end of its useful life, is high‑maintenance, and (under current interconnection rules) does not provide power when the grid is down. "Our emergency operations center requires…
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