Headquartered in Rotterdam, Uper Energy BV provides Operation and Maintenance (O&M) services for solar assets. The company manages a fast-growing portfolio exceeding 140 MW across five European countries. Uper Energy BV is a subsidiary of developer & EPC, Unisun Energy BV, which is part of the Alternus Energy Group (AEG). AEG is an international vertically integrated independent power producer (IPP).