Market Engagement on the Second Hydrogen Allocation Round (HAR2)

Closed 30 Jun 2023

Opened 17 May 2023


This market engagement document is seeking views on the proposed design of the second Hydrogen Allocation Round (HAR2) that will allocate funding to low carbon hydrogen projects.

HAR2 aims to award contracts to up to 750MW of capacity in early 2025, subject to affordability and value for money, to deliver up to 1GW of electrolytic hydrogen production capacity in construction or operation by 2025.

This market engagement document seeks views and information on the following:

  • Proposed eligibility and evaluation criteria
  • Project requirements
  • Proposed delivery approach
  • Co-locating with a Government-subsidised renewable electricity source

The document also sets out an indicative timeline for the round.

Read the market engagement document on GOV.UK.


  • SMEs (small and medium businesses)
  • Large businesses (over 250 staff)
  • Low carbon technologies


  • Energy and climate change