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Heat Network Efficiency Scheme (HNES)

The Heat Network Efficiency Scheme (HNES) provides funding to public, private and third sector applicants, to support improvements to existing district heating or communal heating projects in England and Wales that are operating sub-optimally and resulting in poor outcomes for customers and operators. Projects can apply to HNES for either revenue or capital grant funding: Revenue grants – grants to fund procurement or mobilisation of external third-party support to carry out Optimisation Studies. These studies will assess heat network projects to identify causes of sub-optimal performance and recommend costed intervention or improvement measures. Capital grants – grants to part-fund the delivery (installation) of eligible intervention/improvement measures.

Published opportunity

Funding: From £5,000 to £10 million
Location: England, Wales
Deadline: 1 April 2030, 12:00 AM
Provider: GOV.UK

Current Ventra listing

Published criteria

Who this opportunity is for.

Who can apply: Public Sector, Non-profit, Private Sector, Local authority
Funding organisation: Department for Energy Security and Net Zero
Location: England, Wales
Opens: 1 April 2025, 12:00 AM
Closes: 1 April 2030, 12:00 AM
Requirement: Public Sector, Non-profit, Private Sector, Local authority

A practical route

What to do next.

01
Check the current terms
Open the provider page and confirm the deadline, location and business-size rules have not changed.
02
Compare it with your profile
Use Ventra’s free matcher to see where this opportunity sits alongside other live routes and why it may fit.
03
Prepare the evidence the provider requests
The exact documents vary. Use the official application guidance as the final checklist before you submit.

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