NESOOFGEMDESNZ
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Capacity Market: Hydrogen to Power and Interconnectors

DESNZ·consultation·medium·2 Oct 2025·source document

This consultation is open for responses

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Summary

DESNZ seeks views on allowing hydrogen-to-power generation into the Capacity Market and on revising interconnector de-rating factors. The consultation runs through early 2026 with decisions expected before the next capacity auction. This would expand the technology mix eligible for capacity payments beyond current fossil and renewable generators.

Why it matters

Hydrogen-to-power entry creates a new competitor for capacity payments, potentially reducing clearing prices for existing generators. The interconnector de-rating review could increase their capacity credits, reducing the overall capacity requirement and further pressuring domestic generation revenues.

Key facts

  • Consultation covers hydrogen-to-power categorisation for Capacity Market participation
  • Reviews interconnector technical reliability methodology for de-rating factors
  • Links to Clean Power 2030 delivery timeline

Timeline

Decision expected2026-Q1

Areas affected

capacity marketgeneratorswholesale market

Related programmes

Capacity MarketClean Power 2030
Memo

The security of our electricity supply is key to the successful delivery of the Clean Energy Superpower Mission and one of its key pillars - clean power by 2030. In this call for evidence, the government is seeking views on how to categorise Hydrogen to Power to inform potential changes to the Capacity Market to enable participation. The government is also seeking views on a new approach for determining the technical reliability of interconnectors for the purpose of setting their de-rating factors.