UK battery storage developers ‘getting a feel’ for Poland/CEE market 

October 26, 2023
LinkedIn
Twitter
Reddit
Facebook
Email

The intentions of battery storage developers and operators from the UK in Poland and Central and Eastern Europe (CEE) are ‘not very concrete’ with most just ‘getting a feel’ for what’s out there, sources have said. 

That was the message from independent sources in light of a significant UK developer presence at the Energy Storage Summit Central Eastern Europe (CEE) in Warsaw, Poland, last month

Speakers included executives from Gore Street Capital, Low Carbon, Harmony Energy while there were also delegates from Field and Kona, alongside international players with a UK presence like Baywa r.e. and Eku Energy

However, other than Harmony Energy which has set up a Poland subsidiary, bidding 500MW of BESS projects in to the upcoming capacity market auction, as reported by Energy-Storage.news, their plans in Poland and the wider CEE region appear to be very, very early-stage. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

“Most UK developers are still formulating their strategy here, it’s still early days. It’s a nascent market for battery storage and they’re trying to get a feel for what’s out there,” one finance source said. 

“Many are not yet convinced by the fundamentals here but they need to be aware of what’s going on regardless. Any international developer needs to be aware of what’s happening in the big markets like Italy, Spain, Poland, Nordics etc.” 

The event, the first in the Energy Storage Summit series to focus on the CEE region, comes amidst a fall in revenue expectations and consequently valuations in the UK battery storage sector

A big part of mitigating against that fall is diversifying internationally, so an increased interest, even if it’s just interest at this point, by UK developers in markets like Poland should not come as a surprise. 

“A lot of developers are just looking at CEE not to get left behind, but their plans are not very concrete,” another finance source said. 

In an interview with Energy-Storage.news about its plans in CEE, Gore Street Capital only went as far as saying there were markets “of interest” in the region.

See the rest of our coverage of the event and the CEE energy storage market here.

6 October 2026
Warsaw, Poland
The Energy Storage Summit Central Eastern Europe is set to return in September 2025 for its third edition, focusing on regional markets and the unique opportunities they present. This event will bring together key stakeholders from across the region to explore the latest trends in energy storage, with a focus on the increasing integration of energy storage into regional grids, evolving government policies, and the growing need for energy security.
13 October 2026
London, UK
Now in its second edition, the Summit provides a dedicated platform for UK & Ireland’s BESS community to share practical insights on performance, degradation, safety, market design and optimisation strategies. As storage deployment accelerates towards 2030 targets, attendees gain the tools needed to enhance returns and operate resilient, efficient assets.

Read Next

Premium
April 8, 2026
A panel at the 2026 US Energy Storage Summit in Dallas, Texas, discussed the “creative, innovative structures” developers are having to embrace to secure long-term revenues for energy storage projects.
April 8, 2026
Amid growing interest in Japan’s battery storage market, a consortium of major Japanese businesses is targeting 174MW of deployments.
Premium
April 2, 2026
MetaWealth COO Michael Topolinski IV discussed the firm’s first BESS project in Romania, which is partially financed with bonds marketed at retail investors. 
April 2, 2026
SSE Renewables, Matrix Renewables, Drax and Voltaria have all progressed large-scale BESS projects in the UK, all-in-all totalling 1.8GWh of new capacity.
April 1, 2026
Australian BESS face new financing reality as spreads halve to AU$100/MWh and lenders demand 50-70% contracting amid 15GW deployment surge.