A groundbreaking hybrid system has commenced in Estonia with the launch of the Kirikmė solar photovoltaic (PV) power plant, which will be enhanced by the addition of a 55 MW/250 MWh battery energy storage system (BESS). Construction of the BESS began in January 2026, and the project is being executed by WiSo Engineering, responsible for everything from initial design to final delivery of the facility. The integration of infrastructure and systems makes this project one of the most ambitious energy initiatives in the Baltic region, catering to the growing need for sustainable energy solutions.

As this hybrid system becomes operational—expected in the third or fourth quarter of 2026—it will allow BREP (Baltic Renewable Energy Producer) to store energy generated from the solar power facility. This stored energy will facilitate essential grid stability services, including frequency containment reserves (FCR), automatic frequency restoration reserves (aFRR), and manual frequency restoration reserves (mFRR). These services are vital in ensuring a reliable energy supply and supporting the transition towards renewable energy across the region.

The project not only highlights advancements in solar energy technology but also signifies a collaborative effort among the Baltic states to bolster their renewable energy resources. With Huawei providing essential components like batteries and power conversion equipment, the initiative exemplifies how technology and sustainability can intertwine to address pressing energy needs while promoting environmental responsibility.