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Notice

Heat Network Technical Assurance Scheme (HNTAS): technical feedback process

We鈥檙e seeking feedback on the contents of the draft HNTAS Code documents, the Heat Network Technical Standard (TS1) and the Metering and Monitoring Standard (MMS).

From:
Department for Energy Security and Net Zero
Published
16 February 2026

Applies to England, Scotland and Wales

Documents

PDF, 1010 KB, 17 pages

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Heat Network Technical Assurance Scheme (HNTAS): technical feedback process - guidance (accessible webpage)

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MS Excel Spreadsheet, 55.2 KB

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Details

This process is aimed towards stakeholders with a technical understanding of heat networks.听Technical听feedback听can be听submitted听until听25 May 2026. The technical feedback process will run in听parallel听to听the Heat Network Technical Standards policy consultation听which closed on听15 April.听听

Please note:听The Heat Network Technical Standards consultation 鈥痺as the听appropriate route听for听providing听feedback on policy听proposals.听Responses are听currently听being analysed and will inform the final听design听of HNTAS, which will be听set out in the government response鈥痠n due course. The Technical Feedback Process is only听seeking comments听of a technical nature on the draft Code听documents,听TS1听and MMS.

We are seeking feedback on the following听draft听documents:听

Draft听versions of听a number of听technical听Code听documents which make up the Heat Network Technical Assurance Scheme (HNTAS)听have been issued, as well as the Heat Network Technical Standard (TS1) and the Heat Network Metering and Monitoring Standard (MMS).听

We are running a听structured听feedback process to allow those with a technical understanding of heat networks听to respond to the听technical contents of听these documents.听听We expect听this to be of particular interest to:听

  • heat network assessors听
  • heat network developers听
  • heat network designers听
  • heat network operators听

The outcomes of this feedback process will be incorporated into the change management processes for HNTAS.听

How to respond听

In order to听aid the process,听we have developed a听guidance听document听that听sets out more听information on听the technical feedback process, including the听guidelines听on听providing feedback and听how this feedback will be used听in further HNTAS development.听听

All听comments听should be听submitted听via the templates听provided,听to give听feedback:听

  • 听
  • 听
  • 听听
  • 听

Feedback can be provided by sending populated versions of these feedback forms to听HNTAS.TechnicalFeedback@energysecurity.gov.uk by 25 May 2026.听

Draft guidance - KPI explanations听

Guidance has been developed听in draft format听to听aid听in听understanding听and interpreting the meaning, purpose, and rationale for each key听performance indicator (KPI)听used within HNTAS to measure and assess heat network performance and听reliability.

Next steps听

We will听be accepting feedback听forms听until听25 May听2026. We will then review the听responses听and听action听any听feedback听following the process set out in the guidance document.听听

We will听publish a听summary听of听the outputs and learnings from听the technical feedback process听once听the听feedback has been reviewed, actioned, and implemented.听

Final versions of the Code听and Standards听documents听which incorporate the feedback implemented from the technical feedback process will听be published听prior to scheme launch.

Updates to this page

Published 16 February 2026

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