2025-10-07
The first commercial battery storage system in Lithuania has joined the electricity balancing market
A new participant has joined the electricity balancing market organized by Litgrid, the Lithuanian electricity transmission system operator, and submitted its first bids – a 1 MW power and 2 MWh capacity energy storage battery system, built by Green Genius in the Alytus district. This is the first commercial storage facility in the country to contribute to ensuring the balance between electricity consumption and production in the Lithuanian electricity system.
"As Lithuania seeks to generate all the electricity it needs from renewable sources, the demand for balancing services is growing, so we are developing the energy balancing market and encouraging new participants to join. The growing technical capabilities of balancing services allow for the integration of larger amounts of renewable energy resources and a reduction in balancing costs. We are delighted with the first commercial battery in the balancing market and eagerly await other projects," says Donatas Matelionis, Head of the System Power Operations Department at Litgrid.
The Butrimonys battery park is developed by Green Genius, while the full trading and optimization service on the balancing and wholesale markets is provided by Capalo AI. The storage facility system has successfully completed readiness confirmation tests and will provide manual frequency restoration reserve (mFRR) and automatic frequency restoration (aFRR) balancing services. The storage devices will be charged from the grid when there is excess electricity in the transmission system and discharged when there is a shortage of electricity in the system.
“Becoming the first commercial battery storage project to participate in Lithuania’s electricity balancing market is not only a technological milestone but also a clear signal that the country’s energy transition is accelerating. Energy storage is the key to stability in a renewables-based electricity system, and we’re proud that Green Genius is leading this transformation. By strengthening Lithuania’s energy independence and reducing the use of fossil fuels for grid balancing, we’re moving closer to a cleaner and more resilient energy future,” says Ruslan Sklepovič, CEO of Green Genius.
“The first commercial BESS in Lithuania marks an important step for the country’s energy transition. With AI-driven optimization, we can ensure this battery delivers the maximum possible value to Lithuania’s grid,” said Henri Taskinen, CEO of Capalo AI.
Litgrid currently has balancing service agreements with 24 market participants. Some of them are already providing balancing services, while others are carrying out preparatory work.
Capalo AI has also passed the prequalification tests for a large PV asset in Lithuania and received the necessary protocols to provide balancing services in other renewable energy projects. This includes a large solar park developed by UAB Vėjo Galia and UAB TSPI, which will be integrated with an energy storage facility. The hybrid park is supported by Lithuanian controller provider, UAB TSPI, who has provided the hybrid park power plant controller to the site and built the needed integration with Capalo AI.
Capalo AI is already providing trading services in Latvia, where the first BESS asset is operating on the balancing markets towards Augstsprieguma Tīkls AS (AST). They’ve also signed an agreement to optimize and trade E energija group’s 120 MWh Vilnius BESS.
Balancing services can be provided using various technologies, including energy storage batteries, solar and wind power plants, and flexible consumption. Participants in the balancing energy market must be able to offer to immediately reduce or increase their production or consumption capacity so that electricity transmission system operators can ensure a constant balance between production and consumption.
In recent years, the Baltic transmission system operators Litgrid, Augstsprieguma tīkls, and Elering have joined the common European balancing exchange platforms. In October 2024, they joined the manual frequency restoration reserve services platform MARI, and in March-April 2025, they joined the automatic frequency restoration reserve services platform PICASSO. Participation in the European balancing market has opened up new opportunities for electricity producers and large consumers in the Baltic countries to provide balancing services.
