Long duration electricity storage window 1: minded-to decisions

Publication type:
Consultation
Publication date:
Closing date:
14 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.

The closing date to respond to this consultation has changed. You have until 14 August 2026 to respond.

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 14 August 2026. If you have any questions, email ldes@ofgem.gov.uk.