It will come online at the start of 2025, when Estonia and the other Baltic countries Lithuania and Latvia will disconnect from Russia’s grid. The complex is located close to the border with Russia in the northeast of Estonia.

The procurement, launched in June last year, saw local firms Diotech OÜ and Solar Wheel OÜ win a joint tender with LG Energy Solution enlisted to supply the BESS units.

The BESS will participate in various electricity market activities but most importantly will help to cover the frequency containment reserve (FCR) need in the Baltics.

‘We are honoured to contribute to Eesti Energia’s energy plan for desynchronisation (disconnecting from Russia’s grid) in the Baltic countries,’ said Kyuwon Heo, Head of Grid ESS Europe at LG Energy Solution. 

Estonia is targeting an exit from electricity production from shale gas and a 40% renewable energy mix by 2030.

The BESS is the first large-scale project in the country but smaller-scale projects are being supported through a grant programme, including a 4MW/8MWh BESS.

Eesti Energia and a consortium of private companies are also launching separate, large-scale pumped hydro energy storage (PHES) projects, though these would come online in the late 2020s.

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