Redflow Limited and Ameresco Inc. announced that Redflow has signed a $2.83 million contract with the United States Department of Defense's (DOD) Defense Innovation Unit (DIU) to deliver a prototype microgrid using a 1.2 to 1.4 MWh Redflow non-lithium long duration energy storage (LDES) system. Redflow's subcontracted engineering partner for the project is Ameresco. The project, which aims to extend the duration of energy storage for existing installations, will repower a solar- powered microgrid currently located at the Stewart Air National Guard Base in New York state.

The repowered microgrid project scope will integrate Redflow's 1.2 - 1.4 MWh LDES solution, enabling the microgrid to provide a dispatchable solar + storage resource for peak shaving and energy resilience. Redflow's solution will demonstrate scalable flow batteries at MWh scale to restore microgrid- controllable renewables at a military industrial scale for integration with the Air Force base, with the objective of delivering a stronger base of power for improved returns on existing investments to enhance resilience. This project comes from Redflow's selection for participation in DIU's Extended Duration Storage for Installations program.

The program is designed to match innovative LDES technologies to projects that demonstrate additional technological capability by providing energy resilience and power backup across the DOD's 450+ global bases.