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.
3 November 2026
Málaga, Spain
Understanding technology and supplier selection for Europe’s utility-scale PV market in 2027. PV ModuleTech Europe 2026 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of PV module, inverter and battery supplier selection; product availability, technology offerings, supply chain traceability, quality assurance, factory auditing, system reliability, and supplier bankability.
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

September 23, 2026
UK energy industry regulator Ofgem said it is minded to approve the introduction of a financial commitment for BESS in an attempt to reduce the oversupply of the projects awaiting a grid connection.
September 22, 2026
Utility PG&E has selected six new California microgrid projects for a US$30 million investment, while Massachusetts’ Department of Energy Resources is awarding US$40 million across 36 BESS projects.
September 22, 2026
RWE has taken a final investment decision (FID) on 400MW/1.1GWh BESS in the Netherlands with construction to start in due course, while Giga Storage has started building its 2.8GWh Green Turtle project in Belgium.
September 22, 2026
Covenergo and Delta Capacity have begun construction on AKKU One, a standalone 125MW/300MWh battery energy storage system (BESS) in Lapinlahti, Finland, with commissioning targeted for the fourth quarter of 2027.
September 21, 2026
The US energy storage industry is targeting 225GW/1TWh of storage deployment by the end of 2032, according to an analysis published by the Energy Storage Coalition (ESC).