Shanghai Yitian Mechanical and Electrical Technology Co., Ltd. (ETENZ)

ETENZ, founded in Shanghai in 2002, builds prefabricated enclosures and integrates five systems inside them: electrical, thermal management, environmental control, fire protection and security.

Its battery-ready BESS enclosures take the customer's packs and can come with in-house racks, liquid cooling to each rack, fire protection, LV auxiliary power and DC busbars to the output terminals, checked by enclosure-level factory tests. Products include 5 and 6.25 MWh enclosures, MV direct-connect and 10 ft all-in-one cabins, and BESS step-up substation enclosures.

Supply ranges from bare enclosures to OEM/ODM. 70,000 m² factory, 500+ employees, ISO 9001/14001/45001, ABS factory approval.