Britain’s biggest battery project so far goes live in grid-balancing markets

November 4, 2020
LinkedIn
Twitter
Reddit
Facebook
Email
The 50MW / 75MWh Thurcroft site in

The UK’s biggest battery storage project so far has been acquired by London Stock Exchange-listed battery storage investor Gresham House Energy Storage Fund and is already participating in numerous grid services markets.

Gresham House said that it has completed its investment in the 50MW / 75MWh Thurcroft battery storage site in South Yorkshire, which is in northern England.

The asset has been acquired from Gresham House DevCo and Noriker Power, with Gresham House having acquired a 5% stake in the latter in 2019.

The Thurcroft asset was acquired from the two developers for a total enterprise value of £32.5 million (US$42.32 million), plus up to £0.75 million of deferred contingent consideration. It becomes Gresham House’s 11th operational utility-scale battery storage project, bringing the total portfolio to 265MW.

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

It is expected that Gresham House’s completion of the acquisition of another asset, the 50MW Wickham battery storage site, is to occur shortly. John Leggate CBE, chair of Gresham House Energy Storage Fund, said: “Thurcroft is our largest battery project yet and we’re delighted that it’s now live. The dynamic fluctuations in power on the National Grid during lockdown, and the unassailable rise of wind and solar installations, have sharpened the focus on the need for fast-acting, flexible storage at scale.”

Prior to Thurcroft’s completion, the 49MW Red Scar asset was Gresham House’s largest, having completed its £32.8 million acquisition in January 2020.

Meanwhile, Flexitricity, a demand response and flexibility energy services provider, contacted Energy-Storage.news to say that the project is already generating revenue and at the same time helping electric system operator National Grid ESO to balance the UK grid.

Gresham House contracted Flexitricity to optimise the asset’s operation following successful work on a previous project.

It has already joined the Balancing Mechanism (BM), which balances demand and supply on the network in real-time and is becoming a common source of revenues for energy storage projects in the UK. Flexitricity’s control room monitors the Thurcroft asset round-the-clock and alters the battery system’s charge and discharge profile accordingly.

Thurcroft is also set to be used in the wholesale markets, as well as tender to provide frequency response ancillary services to the grid. According to Flexitricity, the battery project has already been able to secure “high value” daily contracts for participating in National Grid ESO’s Dynamic Containment market – the grid operator’s newest, much-talked about frequency regulation opportunity.

“Flexibility is a hugely important part of decarbonising the grid and batteries are an excellent source of flexibility. Investors are getting comfortable with the business case for energy storage and it’s great this year to be seeing a number of large batteries coming onto the system, providing more of the rapid response flexibility National Grid ESO needs to maintain system stability,” Andy Lowe, Flexitricity director, said.

“I’m glad to say we’re off to a great start and have been able to optimise revenue for the battery across a range of markets, including securing high prices in the first ever tender round of the newly launched Dynamic Containment service.”

Planning regulations which changed in Britain a while ago could change the landscape for the country’s big battery systems. Over 1GW of utility-scale battery capacity has been deployed already and a recent government ruling lifted certain restrictions and planning hurdles placed on battery projects of over 50MW.

Ben Guest, Gresham House managing director alluded to Great Britain needing “at least 10GW” of energy storage “in the next few years to enable the orderly transition to a renewables-led electricity market” and said that Gresham is targeting 350MW of operational assets by the end of this year.

“In turn, we aim to contribute meaningfully to the UK’s 2050 net zero ambitions, while achieving strong returns for our investors.”

Additional reporting for Energy-Storage.news by Andy Colthorpe.

The original version of this story appeared on Solar Power Portal.

7 April 2026
Dubai World Trade Centre, Dubai
Co-located with the extremely well renowned Middle East Energy Show, join us for the inaugural Energy Storage Middle East Summit in Dubai, April 2026, as we bring our world leading energy storage series to one of the world’s fastest-growing BESS markets. This landmark event will explore the Middle East’s trajectory to become the third largest storage market globally by 2026, with a special focus on the region’s ambitious renewable energy targets and BESS integration strategies.
15 April 2026
Milan Marriott Hotel, Italy
Solarplus Europe 2026 marks the evolution of Europe’s longest-running solar conference, reflecting the industry’s transition from standalone PV to fully integrated solar-plus-storage and hybrid energy systems. Taking place in Milan, the Summit will unite developers, investors, policymakers, and technology leaders to explore how Europe can deliver firm, flexible, and bankable renewable power at scale. With a sharp focus on system integration, storage deployment, hybrid project design, and market-ready business models, Solarplus Europe provides the platform for shaping the next phase of the continent’s solar and clean power build-out.
22 April 2026
Texas USA
To bring buyers and sellers of power together, the Renewable Energy Revenues Summit USA will cover strategies to optimize renewable energy trading, procurement, and offtake structures across U.S. markets.
20 May 2026
London, UK
The Renewables Procurement & Revenues Summit serves as the UK and Irish platform for connecting renewable energy suppliers to the future of energy demand. This includes bringing together a community of European off-takers, renewable generators, utilities, asset owners, and financiers. The challenges ahead are complex, but through collaboration, innovation, and a shared vision, we can navigate uncertainties and forge a sustainable energy future. Let us harness our collective knowledge to advance the renewable energy agenda.
9 June 2026
Stuttgart, Germany
Held alongside The Battery Show Europe, Energy Storage Summit provides a focused platform to understand the policies, revenue models and deployment conditions shaping Germany’s utility-scale storage boom. With contributions from TSOs, banks, developers and optimisers, the Summit explores regulation, merchant strategies, financing, grid tariffs and project delivery in a market forecast to integrate 24GW of storage by 2037.
23 June 2026
Munich, Germany
Every year, ees Europe, Europe’s largest and most international exhibition for batteries and energy storage systems, provides a networking opportunity for the industry’s key players – all under the motto “Innovating Energy Storage”. It focuses on the latest technologies, trends and market developments. ees Europe will take place from June 23–25, 2026 – for the first time running from Tuesday to Thursday – as part of The smarter E Europe at Messe München.

Read Next

Premium
April 2, 2026
A panel of expert speakers discussed the opportunities in Europe’s largest energy market at the Energy Storage Summit 2026 in London in February. See the full video discussion further down with the following panellists:
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 2, 2026
Opportunity is ahead for Europe’s growing fleet of residential battery storage systems in electricity trading, writes Chris Bernkopf, CEO of flexibility and trading platform Podero.
April 2, 2026
Eora Energy has officially launched in Australia and is positioning itself as a challenger in the vanadium redox flow battery market.