Flow battery firm Redflow has completed installation of a 2MWh energy storage system for Anaergia in California, US— the Australian firm’s largest single sale of zinc bromide batteries to date.
The energy storage system is designed to reduce peak energy use at clean energy, fertilizer, and recycled water company Anaergia’s Rialto Bioenergy Facility as part of a microgrid.
The system comprises of 192 zinc-bromine flow batteries, housed in 12 160kWh Redflow Energy Pods and clustered into four strings tied to four 125kW Dynapower inverters.
The microgrid project, funded in part by a grant from the California Energy Commission, consists of the batteries, a biogas conditioning system to support a 2MW biogas-fuelled cogeneration unit and a microgrid control system.
Each of the four battery strings have been successfully charged and discharged and have passed critical acceptance testing criteria.
The final test of the system will be in January when Siemens plans to integrate the battery into the microgrid controller and the facility can absorb the entire 2MWh load.