UK government launches £28 million Ultra-Long Duration Energy Storage Challenge

LinkedIn
Twitter
Reddit
Facebook
Email

The UK government has launched a new grant funding programme for energy storage technologies that can provide inter-day and seasonal energy shifting applications, primarily electrochemical batteries and hydrogen.

The Ultra-Long Duration Energy Storage Challenge was launched last week (20 August) and is offering £28 million (US$38.15 million) in grants to technologies that can store and discharge energy for over 100 hours.

The challenge aims to strengthen UK energy security, create jobs in new industries, and reduce energy bills in the long-term, the government said. UK innovators can now bid for funding, it added.

It follows the selection and announcement of the 16 winning projects totalling 7,645MW in the government’s long-duration energy storage (LDES) cap-and-floor scheme in June. However, those projects range from 8- to 22-hour durations, set to come online over 2030-33. Looking beyond that into the late 2030s and 2040s, much longer durations will be needed as intermittent solar and wind generation take up a larger share of the energy mix.

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

The new funding was announced by the Department for Business, Innovation, Science and Trade (BIST), the Department for Energy Security and Net Zero (DESNZ), UK Research and Innovation (UKRI) and Michael Shanks and Chris McDonald, Ministers of State for DESNZ and BIST respectively.

To read the full version of this story, visit Solar Power Portal.

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

September 14, 2026
UAE state-owned renewables company Masdar has partnered with Germany’s Luxcara for battery storage and wind energy projects.
September 11, 2026
Our collection of user-posted analysis, views, and unofficial news, gathered from our networks on LinkedIn, returns for its third outing.
Premium
September 10, 2026
We hear from Angus Gordon Lennox, chair of the Gore Street Energy Storage Fund (GSF), which faces a shareholder vote next week on its future. 
Premium
September 10, 2026
We look at the iron-air battery technology of startup Ore Energy, including how it works and technology developments it is pursuing after a recent US$43 million fundraise.
September 9, 2026
This edition of news in brief brings you BESS news from the UK market featuring Field, Eelpower and EDF, as reported by our colleagues at Solar Power Portal.