The battery parks will be located in Kiisa in Saku Rural Municipality and Arukylä in Raasiku Rural Municipality, correspondingly. Elering''s emergency power plant is located in Kiisa as well.
In 2025, Estonia, Latvia, and Lithuania will decouple from the Russian electricity grid, and the Baltic networks will be linked to the continental European grid. The battery farm is scheduled to reach its completion at that time. This will ensure an adequateemergencyreserveand in the future, the battery parkcan be converted into a storage facility for renewable energy.
The two battery parks have a total capacity of 200 megawatt-hours and 400 megawatt-hours respectively, which means that 90,000 households can be supplied with electricity when necessary.
Elering isbuilding the connections for the future battery farms that are scheduled to go into operation during the second and third quarters of 2025. The first park will be built in Kiisa during the spring of the following year, and the second in Arukyla during the fourth quarter of 2024. Kiisa will get the batteries from Corsica Sole by the end of 2024.
Michael Coudyser, CEO of Corsica Sole, said thatfluctuations in the electricity system can be adjusted to in a matter of seconds using a battery bank. To counterbalance the impacts of fluctuations in grid frequency, the batteriesquicklystoreor generateelectricity.
A battery park is a controlledenvironment made up of several containers. Depending on the manufacturer, a single container could hold hundreds or thousands of batteries.
Climate Minister Kristen Michal (Reform) said that the emergence of reserve and storage capacities in Estonia is good news and it is particularly welcome that it is being done by private companies.
Evecon plans on building 20 wind farms with a totalcapacity of 1,200 megawatts by the end of 2026 and 78 solar plants with a total capacity of 1,465 megawatts by the end of 2024.
Continental Europe''s biggest battery system was built by Corsica Sole in Belgium in December 2022. The system helps to ensure the stability of frequency in the European electricity network. The main way battery systems do this is through participating in Frequency Control Reserve (FCR), which will be gradually replaced by a pan-European service called automatic frequency restoration reserve (aFRR).
Eesti Energia was unable to secure a contract for a large-scale energy storage facility through an international tender. It is expected that it would have a capacity ranging from 25 to 50 megawatt-hours that sufficiently meets thereserve needs of the Baltic countries. Eesti Energia said that despite the unsuccessful tender, it was going ahead with the project.
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Eesti Energi has completed the procurement for its 26.5MW/51MWh BESS, the first of that scale in Estonia, with LG Energy Solution among the successful parties.
The battery energy storage system (BESS) will be built at the Auvere industrial power plant complex in Ida-Viru county and will help balance the country’s grid, state-owned utility Eesti Energia said today (30 January).
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.
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.
Energy-Storage.news'' publisher Solar Media will host the 9th annual Energy Storage Summit EU in London, 20-21 February 2024. This year it is moving to a larger venue, bringing together Europe''s leading investors, policymakers, developers, utilities, energy buyers and service providers all in one place. Visit the official site for more info.
We hear from utility Eesti Energia about its 25MW/50MWh BESS project in Estonia, including what it hopes to achieve with the project and why it needed a second procurement to launch the project.
State-owned Eesti Energia signed an agreement with lithium-ion OEM LG Energy Solution for the project at its Auvere industrial power plant complex, as reported by us at the time. The whole Baltic region is desynchronising from Russia and connecting to mainland Europe’s electricity system soon, which Eesti management board member Kristjan Kuhi discussed in this Q&A.
Alongside that desynchronisation, Kuhi touched on what the firm is hoping to achieve with its first project, the drivers behind Estonia’s grid-scale energy storage market, and more.
Grid-scale energy storage projects are being deployed in other Baltic nations Lithuania and Latvia. Latvia’s transmission system operator (TSO) AST selected Rolls-Royce Solutions for 80MW/160MWh of projects while Fluence has already deployed 200MW/200MWh of storage-as-transmission BESS for Lithuania’s TSO Litgrid.
Kristjan Kuhi: Estonia and the whole Baltic region is currently rapidly increasing its renewable energy production. The more production of non-dispatchable renewable energy we have on the market, the more the electricity system will need storage to keep prices stable.
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