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Encino Reservoir Project Update
ENC's December Public Safety Committee meeting was a dedicated info session about the Encino Reservoir Floating Solar Project. Led by the committee chair, Roy Nwaisser, several members of LADWP and Encino residents gathered via Zoom to discuss the project scope and ask questions.
Project Overview
● Proposed 3–5 megawatt floating solar array with battery energy storage, located in the Encino Reservoir. It is estimated to generate 10,000 megawatts of clean, renewable energy, enough to power 2,677 homes per year. Offsetting 2,854 metric tons of carbon dioxide.
● Construction will last about one year, from Summer 2026 to Summer 2027.
● Designed as a pilot project to test floating solar in an urban environment.
● The Encino Reservoir is non-potable and not part of Encino’s drinking water supply.
Purpose of the Project
● Evaluate the safety, performance, and reliability of floating solar technology.
● Support grid resiliency and future distributed energy solutions.
● Utilize existing infrastructure and strong solar exposure.
Environmental & Health Concerns
● Residents raised questions about water quality, wildlife, algae growth, and microplastics.
● LADWP stated that only floating pontoons contact the water.
● Materials used are certified safe for drinking water applications, although the water in the Encino Reservoir is not used for drinking.
● Algae treatment would continue as needed.
● As a benefit, some studies suggest floating solar may reduce evaporation and lower water temperature.
Fire Safety & Battery Technology
● Encino residents cited fire risk concerns due to nearby wildfire history.
● Project requires approval from the Los Angeles Fire Department.
● Firefighting aircraft access to the reservoir would not be diminished; the solar project covers 8% of the reservoir.
● Battery system would use iron flow batteries, not lithium-ion. Flow batteries have lower fire risk and do not experience thermal runaway.
Maintenance, Lifespan & Cost
● Estimated project cost is approximately $25 million, initial project cost plus around 5 years of maintenance; long-term maintenance handled by LADWP.
● Expected solar panel lifespan of approximately 25 years. Panels would be replaced and repaired as needed. According to LADWP, systems would not be left in place to deteriorate if they are no longer operable.
Environmental Review & Public Process
● Project proceeding under a Mitigated Negative Declaration (MND).
● Some residents questioned why a full Environmental Impact Report (EIR) was not required. LADWP stated that environmental review is conducted by a separate internal division and is subject to oversight.
● Project requires approval by the LADWP Board of Commissioners.
● ENC plans further discussion and follow-up during the regular Board Meeting.
● No vote or position on the project by the Encino Neighborhood Council was taken at this meeting.
ENC will continue to update Encino Residents as the project progresses.
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