City of San Leandro Public Works
WWTP Energy Efficiency and Resiliency Improvements

The project consists of plant energy efficient upgrades in conformance with the sewage treatment plant’s long-term capital program.  Project elements include a new 500kW/1.1MWh battery system for plant peak demand shaving, energy arbitrage and serve as the primary backup power (up to the BESS rated capacity) during public safety power shutoff (PSPS) and other power grid interruptions; new High Strength Waste (HSW) Receiving Facility for food processing waste reception; new Biogas system to produce RNG (Renewable Natural Gas); new Digester Mixer Replacement with high efficiency propeller Mixers; blower replacement to a new high efficiency turbo blower; and new shelter structure with pad. The existing 5 HP Heat Loop pumps will be replaced with new high efficiency pumps. Project requires coordination with PG&E, Bay Area Air Quality Management District and plant operations management.