The new battery park will be constructed by WiSo Engineering, an Estonian company, in the proximity of the existing Kirikmäe solar park and integrated as a whole with the production unit. 
This hybrid solution allows for storing the electricity produced in the solar park and to supply it to the market as needed by the electricity system and electricity market, the company said in a statement.
The plant will be completed in the second half of 2026, with operation immediately commencing on various energy markets. 
Upon completion, the hybrid system will allow for storing solar power and providing important services with regard to grid stability, eg arbitrage and various frequency markets. 
The Kirikmäe solar park in Western Estonia covers 110 hectares (272 acres) and has a generating capacity of 77.53 megawatts, will provide enough electricity to power 35,000 homes each year.
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