Premium

Blackhillock brings UK BESS capacity to 8.9GWh

LinkedIn
Twitter
Reddit
Facebook
Email

The UK now has nearly 9GWh of grid-scale BESS online, with more than double that figure under construction.

That’s according to the latest data from Solar Media Market Research’s ‘Battery Storage: UK Pipeline & Completed Assets Database’ report.

There is now 6,280MW/8,889MWh of grid-scale battery energy storage system (BESS) capacity online in the UK, the data shows. A total of 425MW/953MWh entered operations in the month since our piece at the start of February.

The main projects making up this figure are Penso Power’s 100MW/331MWh Bramley project, Eku Energy’s Loudwater and Basildon projects totalling 68MW/111MWh, and the first phase of Zenobē’s Blackhillock project, totalling 200MW/400MWh, the latter two covered by our sister site Solar Power Portal.

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

February also saw 395MW/767MWh of projects enter construction, meaning there is a total of 8,089MW/18,487MWh being built in the UK today. That is slightly down on last month’s figure, because of the projects that went into operation.

Meanwhile, 2,820MW/5,639MWh of projects were awarded planning consent—Energy-Storage.news listed a few of these in a roundup article on 13 February. The total figure for the month is similar to January’s, and means there is now a staggering 52,980MW/111,505MWh of projects with planning consent.

The milestone may be crucial for projects wanting to keep their place in the interconnection queue amidst a shake-up being implemented by regulator Ofgem and the National Energy System Operator (NESO).

February also saw planning applications submitted for 487MW/1,258MWh of projects, more than ten times the amount submitted in January.

The UK has led grid-scale BESS deployments in Europe since 2018 and remains an attractive market for investors despite plummeting average revenues in 2023 and 2024—these have started to pick up again, discussed by one of the largest owner-operators Gore Street in a recent interview.

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.
2 December 2026
Italy
Battery Asset Management Summit Europe is the annual meeting for owners, operators, investors, and optimisation specialists working with operational BESS assets across the continent. The Summit focuses on how to maximise performance and revenue, manage degradation, integrate advanced optimisation software, navigate evolving market and regulatory frameworks, and plan for repowering or end-of-life strategies. With insights from Europe’s most active storage markets, it equips attendees with practical guidance to run resilient, profitable battery portfolios as the sector scales.

Read Next

Premium
July 29, 2026
ESN Premium speaks with Jason Abiecunas and Mike Wallace of FlexGen, one of a growing number of US BESS companies establishing operations in Europe.
July 29, 2026
RWE has launched construction on a 236MW/470MWh BESS in Germany, while IPP Kallista has done the same on a 193MW/386MWh system in France, supplied by Envision Energy.
July 28, 2026
European battery manufacturer and energy storage system integrator InoBat plans to get a Nasdaq listing through a business combination with a special purpose acquisition company (SPAC).
Sponsored
July 28, 2026
We caught up with Kevin Huang, Senior Vice President and President of Energy Storage Product Line at Envision Energy at Smarter E in Munich for a video interview on the company’s energy storage strategy and the growing role of AI data centres in power demand.
July 28, 2026
UK-based BESS and EV charging firm Zenobē has entered the German market with the acquisition of Bavaria-headquartered BESS developer SDP Energie.