A BESS stores excess energy generated by the solar array during the day. Grid Connection: The factory remains. What is a battery energy storage system (BESS)? Overview. What is Bess & why. Burundi is embracing cutting‑edge solar solutions to boost industrial growth and supercharges communities. eco° SOLAR is proud to stand alongside partners advancing clean, reliable energy access across the nation. We provide comprehensive technologies — from commercial BESS (battery energy storage. ve challenges of the power sector in the cou gy that could electrify all Burundian facilities. "We expect the station to be ready by November 2021 as l"s local subsidiary Gigawatt Global Burundi SA. A solar panel factory is unlike a typical assembly plant. 5 MW solar PV plant has increased Burundi's generation capacity by over 10%, and is the country's first substantial energy generation project to go online in over three decades, supplying clean power to tens of thousands of homes and.