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Balancing services

The Anykščiai battery: why operation matters as much as the hardware

Published:

Case period: 2026-06–2026-08

Installing a battery creates the ability to store energy, but someone still has to decide how to use it each day. Anykščiai makes that task tangible: solar generation and storage already operate together as a hybrid facility. Here, hybrid simply means combining generation with storage.

A local project with a market partner

On 26 August 2026, European Energy announced that Capalo AI provides optimisation and trading services for its Anykščiai project. A 25 MW / 65 MWh battery sits alongside a 78 MWp solar park; the hybrid facility began operating in June. MWp denotes the rated output of solar modules under standard test conditions.

The agreement also covers Saldus in Latvia, bringing the combined battery figures to 71 MW / 170 MWh. These numbers describe the partnership’s scope. Its practical substance is coordinating decisions about generation, storage and trading.

Source: European Energy

What needs to be coordinated

Optimisation means choosing how to operate within equipment capabilities and market conditions. As a simple illustration, imagine a battery whose stored energy is already scheduled for discharge. Before accepting another commitment, the operator would need to check whether sufficient power and energy remain available. This is a general decision example, not a disclosed Anykščiai trading algorithm.

Litgrid distinguishes balancing energy, used to maintain system balance, from balancing capacity: a reserved capability accompanied by commitments to submit corresponding energy offers. The decision therefore includes readiness to deliver a service, as well as electricity already sold. Charging and discharging plans need to fit the commitments made to the market.

Source: Litgrid (LT)

Market access is a separate task

Litgrid’s published process requires a contract and a valid prequalification approval for balancing services. This checks whether a participant can deliver the service offered. A battery’s power rating alone does not establish which products it is qualified for or who accepts the associated obligations.

European Energy’s announcement confirms Capalo AI’s optimisation and trading role, but does not provide product-by-product qualifications or realised revenues. We therefore do not identify the company as this asset’s balance responsible party or balancing service provider: those specific roles would need separate confirmation.

Source: Litgrid (LT)Source: European Energy

From an equipment proposal to an operating business

For a prospective battery owner, the case suggests a useful sequence of questions. What task will the equipment perform? Who will plan its operation? How will commitments be assessed? How will the owner see the result? This turns a technical proposal into a clear description of operations, with each responsibility given its place.

Anykščiai is interesting because it connects a physical asset with professional operation. Our related article looks at the company’s wider portfolio expansion. Here, the focus is the daily decision-making that connects equipment capabilities with actual needs in the electricity system.

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