Long-duration energy storage: UK’s House of Lords tells government to ‘get on with it’ and act fast

By George Heynes
LinkedIn
Twitter
Reddit
Facebook
Email

The UK’s House of Lords Science and Technology Committee released a report yesterday (13 March) determining that the government must make “major decisions about future energy infrastructure”.

The Long-duration energy storage: get on with it report highlights that the government must “act fast” to ensure long-duration energy storage (LDES) technologies can scale up and contribute to the decarbonisation of the electricity system. This target is a mere 11 years away.

The Committee which published the report is among a number of select committees set up by the House of Lords, the upper house of the UK Parliament which is independent of the elected House of Commons. The committees are appointed to examine and explore general issues affecting the country.

In a bid to support the technology, the Committee’s report outlined that a coordinated effort is needed to unlock investment in LDES and to ensure a strategic reserve of storage is delivered both to achieve net zero and to protect the UK from future energy supply shocks, a perspective shared by various members from across the energy industry.

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

One of the biggest questions raised by the energy industry in response to the government’s consultation on LDES technologies was the decision to exclude lithium-ion batteries from the LDES business model. For example, battery developer-operator Field’s COO, Luke Gibson, stated that excluding lithium-ion technology at a 6-hour duration “should be reconsidered”.

The report also discussed this topic, with the Committee stating that one of the most significant barriers to LDES technologies has been a greater focus on lithium-ion batteries. It said, “One of the key barriers is that there is still too much focus on lithium-ion”.

Whilst the Committee has welcomed the government’s recent reforms to the energy system, such as committing to delivering a Strategic Spatial Energy Plan, the report raises concerns that it is unclear who will be responsible for implementing this plan or how future energy supply crises will be managed.

To read the full version of this story, visit Current.

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
June 9, 2026
ESN Premium speaks with Dr Thomas Sisto, of flow battery developer XL Batteries, about using LDES to combat grid strain from heatwaves and data centres.
June 9, 2026
After a quiet period, M&A in the UK’s large-scale BESS market has picked up with transactions from CIP, Fidra Energy, Elements Green, Gresham House and Eelpower in the past fortnight.
June 9, 2026
The solar PV and energy storage expo SNEC 2026 in Shanghai, China, was the place to see product launches and showcases from the big players.
June 9, 2026
Eku Energy has submitted its 1,000MWh Griffith battery energy storage system (BESS) for environmental assessment under Australia’s EPBC Act.
June 4, 2026
The European Commission must “acknowledge the clear role of long-duration energy storage,” organisations including Energy Storage Europe and the LDES Council have urged.