Consultation on Long Duration Electricity Storage Project Assessment
Consultation
- Upcoming
- Open
- Closed (awaiting decision)
- Closed (with decision)
- Publication date
- Closing date
- Industry sector
- Long duration electricity storage
Related links
Ofgem, working with the National Energy System Operator (NESO), is seeking views on our proposed approach for assessing which long duration energy storage (LDES) projects should be awarded a cap and floor regime. LDES assets are essential to building a smart, flexible energy system capable of integrating large volumes of low-carbon electricity, heat, and transport. By enabling the storage of electricity when supply is high or prices are low, and releasing it during periods of high demand or cost, LDES can help reduce waste, lower prices, support decarbonisation, and strengthen energy security.
This consultation is particularly relevant to LDES projects applying under the first application window, which opened on 8 April 2025. We also welcome input from stakeholders, including industry participants, energy experts, and members of the public. Your feedback will help shape a fair and effective assessment process that supports the Government’s Clean Power 2030 goals.
To respond, please submit your views in a PDF document on headed paper, clearly identifying the responding organisation or individual. Send your response to LDES@ofgem.gov.uk with the subject line: Project Assessment Consultation Response from [company/individual name]. We encourage all interested parties to contribute their perspectives.
The deadline for responses is 25 June 2025. We aim to publish the final Project Assessment framework in Q3 2025.
Respond name
Mark Horley