Richardson Electronics, Ltd. (NASDAQ: RELL) announced the addition of two commercial battery energy storage systems, the RESS211 and RESS422, to its Richardson Energy Storage Solutions (RESS) portfolio, according to a press release dated Aug. 4, 2026.

The new systems offer 211 kWh and 422 kWh capacities, respectively, and join the previously released RESS760, a 760 kWh platform. The three products form a scalable lineup targeting commercial and industrial customers.

The systems are available as standalone DC battery blocks or as fully integrated turnkey units. Stated use cases include peak demand management, backup power, renewable energy integration, and participation in utility demand response programs.

Greg Peloquin, Executive Vice President and General Manager of Power & Microwave Technologies and Green Energy Solutions at Richardson Electronics, said, "The addition of the RESS211 and RESS422 systems expands our commercial energy storage portfolio and reinforces our commitment to delivering engineered energy storage solutions for commercial and industrial customers."

Richardson Electronics is headquartered in LaFox, Ill., and its common stock trades on the Nasdaq Global Select Market under the ticker RELL.