How batteries could help Lithuania export more electricity to Poland

On 8 April 2026, Litgrid announced initial measures and reported daytime export capacity reaching 230 MW. It linked further development partly to frequency stability services from transmission-connected batteries. An auction for isolated-operation reserve was planned for the fourth quarter of 2026.

The announcement distinguishes an implemented step from future service procurement. In preparing this article on 9 September 2026, we found no newer official confirmation that the auction described in that announcement had already taken place. We therefore discuss it as a plan, rather than a completed market outcome or a set of contracts already awarded.

Imagine assessing the connection through two successive questions. First, what system condition must be maintained securely? Then, how much trade can take place within that condition? This logical sequence helps explain why a system service can matter to trading opportunities even when its provider does not itself sell electricity across the international connection.

This does not mean that a battery replaces the interconnector or that electricity exported to Poland must pass through its cells. A battery may supply a function the network needs while the trading flow uses the interconnector. Functional support and the physical energy route need to remain separate in the explanation; otherwise even an attractive diagram can misrepresent how the infrastructure works.

Litgrid’s announcement refers to transmission-connected storage and particular additional services. That is a narrower description than all batteries. Before connecting a specific project to that opportunity, its connection arrangements, technical compliance and the procurement requirements would need to be understood.

This helps explain why two batteries with identical rated power may have different opportunities. Comparing power and energy capacity alone does not identify where an asset operates within the network or which task it can perform. A useful project presentation connects those questions, rather than treat a general market development as proof that any chosen piece of equipment is eligible.

The Lithuanian example broadens the discussion about batteries. Their usefulness can concern more than moving energy between expensive and inexpensive hours: it can relate to the wider capabilities of an electricity system. A fuller map of service needs makes the market easier to understand, even when an individual project intends to address only some of them.

Silver BESS Park is under development. We do not describe it as already eligible for this particular auction or as a contributor to the announced capacity increase. Following the operator’s subsequent decisions and requirements is the useful next step. The Scottish case offers another example of stability procurement, but only evidence from Lithuania’s own process can confirm how the Lithuanian plans are implemented.