Fox ESS Achieves Record 97% Energy Storage Efficiency under HTW Rankings

2026-03-07 - 13:36

BERLIN, March 7, 2026 /PRNewswire/ — Fox ESS, a leading provider of renewable energy solutions, has announced a significant milestone in energy storage efficiency. The company has achieved a record System Performance Index (SPI) of 97%, securing the top position and earning an Efficiency Class A ranking in the storage category by HTW Berlin and AQUU