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Home - Energy Storage - 100 MW Hertz 1 battery comes into use after grid incident between Estonia and Finland – SPE
Energy Storage

100 MW Hertz 1 battery comes into use after grid incident between Estonia and Finland – SPE

solarenergyBy solarenergyFebruary 5, 2026No Comments2 Mins Read
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The 100MW/200MWh battery energy storage project in Kiisa started as planned on February 3 – just two weeks after a testing error at the facility caused the biggest disruption to the regional electricity grid since Estonia’s desynchronization with Russia’s electricity system.

February 4, 2026
Marija Maisch

By ESS news

Brick-and-mortar renewable energy developer Evecon, together with French independent energy producer Corsica Sole and international investment fund Mirova, opened one of the largest battery energy storage facilities in the Baltics on February 3 in the Estonian parish of Kiisa, just south of Tallinn.

The 100 MW/200 MWh Hertz 1 project is the first of two strategic installations that form the Baltic Storage Platform. Both Hertz 1 and its sister project Hertz 2 – each with the same power output and capacity – are designed to stabilize the regional energy system following the synchronization of the Baltic States with the European continental grid.

“The project proves two things. First, private investors are capable and interested in supporting major energy projects in Estonia. Second, the future has arrived. Ten years ago this would have been the largest electric park with lithium-ion batteries in the world, thirty years ago this would have been science fiction,” said Andres Sutt, Minister of Energy and Environment of the Republic of Estonia.

To read further, visit our ESS news website.

This content is copyrighted and may not be reused. If you would like to collaborate with us and reuse some of our content, please contact: editors@pv-magazine.com.

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See also  Algeria and EU countries plan southern hydrogen corridor – SPE

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