The hybrid project will combine Evecon’s Kirikmäe solar PV plant, commissioned in 2024, with a 250MWh BESS under construction since the start of 2026. WiSo Engineering is the EPC contractor for the BESS element, with Chinese firm Huawei supplying the batteries, power conversion equipment and medium-voltage components. The BESS unit is due for completion in late 2026 and, once operational, will deliver key grid-stability services, such as frequency containment reserve (FCR), automatic frequenc...