Long duration electricity storage window 1: minded-to decisions

Publication type:
Consultation
Publication date:
Closing date:
7 August 2026
Status:
Open
Topic:
Long duration electricity storage,
Electricity generation
Subtopic:
Electricity storage

Give feedback on our minded-to decisions for the first application window of the long duration electricity storage (LDES) cap and floor regime.

Consultation description 

We want to know your views on our minded-to-decisions and the reasoning set out, including:  

  • the proposed portfolio of projects we are minded-to support
  • our assessment approach, including capacity limits and regime requests
  • future LDES application windows  

Who should respond 

We welcome views from anyone with an interest in long duration electricity storage in Great Britain (England, Scotland and Wales). 

This includes: 

  • project developers and investors
  • electricity system and network operators
  • energy suppliers and generators
  • industry experts, analysts and consultants
  • consumer representatives and other interested parties  

How to respond 

Read our consultation documents and submit your response using our online consultation platform

This consultation closes on 7 August 2026. If you have any questions, email ldes@ofgem.gov.uk.