Namibia's power utility, NamPower, on Wednesday signed an agreement with two Chinese companies for the development of the country's first 54MW/54MWH utility-scale Battery Energy Storage System (BESS). The projected BESS enables electricity to be stored and dispatched when required. (Xinhua/Chen Cheng) WINDHOEK, Dec. The two Chinese. The Erongo Battery Energy Storage System, also Erongo BESS, is a planned 58 MW (78,000 hp) battery energy storage system installation in. The BESS, the first of its kind in the country and in the region, will be capable of providing 72MWh of clean energy to the Namibian grid.