Mirova and Evecon have launched Estonia’s largest solar-plus-storage hybrid project at the 77.5MWp Kirikmäe site through their Baltic Renewable Energy Platform (BREP).
The partners said the plant is being upgraded with a 55MW/250MWh battery energy storage system (BESS), which is currently under construction by WiSo Engineering, with equipment supplied by Huawei.
The hybrid facility is expected to enter commercial operation in the third to fourth quarter of 2026 and will provide grid-stability services including frequency containment reserve (FCR), automatic frequency restoration reserve (aFRR) and manual frequency restoration reserve (mFRR).
BREP has also signed what it described as the first flexibility and power purchase agreement (FPPA) in the Baltics with Pure Energy, covering output from the Kirikmäe, Imavere and Lohu Mets sites.
Meanwhile, Swedbank has committed approximately €85m in long-term financing to refinance the solar portfolio, fund construction of the Kirikmäe battery and provide ancillary credit lines.
Raphaël Lance, global head of private assets at Mirova, said: “The construction of 55MW BESS capacity to build the largest Baltic hybrid plant, combined with the signing of this first long term FPPA illustrates how innovation can accelerate the integration of renewables and storage into Europe’s power systems.
“By backing pioneering hybrid infrastructures, Mirova is helping reshape the way clean energy is produced, stored and valued.”
Karl-Joonatan Kvell, chief executive of Evecon, said the hybridisation of the Kirikmäe project and the FPPA “demonstrate how innovative structures, strong partnerships and high technical standards can shape the future of the Estonian electricity system.”
Servet Akgün, founder of Pure Energy, said the agreement marks the start of a long-term partnership with BREP, MET5 and Evecon.
Mihkel Utt, head of large corporates at Swedbank Estonia, added the bank was pleased to continue supporting the platform’s next development phase.
