Open consultation

Capacity Market: proposal regarding locational changes of Capacity Market Units

Applies to England, Scotland and Wales

Summary

We are seeking views on a proposed change to remove the ability for the location of a CMU to be changed after Prequalification. This change is proposed to come into force in Winter 2025 for all existing and new agreements.

This consultation closes at

Consultation description

The Capacity Market (CM) is regularly reviewed to ensure it remains fit for purpose, reflects changing market conditions and that the CM Rules ensure effective delivery and encourage participation to create competitive auctions.

The government has recently published a consultation on proposed changes to the Capacity Market Rules and Regulations. Alongside this, an urgent reform has been identified which requires a change to the Capacity Market Rules as soon as possible. The proposal aims to enhance the functionality of the scheme and strengthen delivery assurance. The consultation seeks views on the following change:

Remove the ability for CMUs to change their address after Prequalification: Changing the Rules to disallow any New Build Capacity Market Units (CMUs) or Demand Side Response (DSR) units from changing the location of a Generating Unit or DSR CMU Component after Prequalification. Removing the ability for New Build Projects to change their address would provide greater assurances that Applicant CMUs represent genuine New Build CMUs that can contribute to GB Security of Supply. This also better reflects the intent of the Capacity market that projects should be viable at the point of Prequalification. 

The consultation is open to anyone to respond to but will be of particular interest to:

  • energy industry
  • consumer groups
  • academia
  • think tanks
  • other organisations who have an interest in security of supply and decarbonisation

Read our consultation privacy notice.

Documents

Ways to respond

Updates to this page

Published 3 November 2025

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