Heat Network Technical Assurance Scheme (HNTAS): technical specifications

HNTAS draft technical specification: District distribution network

HNTAS draft technical specification: Substation

HNTAS draft technical specification: Communal distribution network

HNTAS draft technical specification: Consumer connection

HNTAS draft technical specification: Consumer heat system

Additional Documents Added

Draft: Heat Network Technical Standard TS1

This draft standard will supersede the Heat Networks: Code of Practice for the UK (CP1).
The standard is largely based on the content from CP1 (2020), but it transitions from a code of practice to a formal standard, and introduces new requirements in several key technical areas.
TS1 will serve as the principal reference point for HNTAS, supporting the sector’s move to regulation by providing robust technical standards to ensure high performance and good consumer outcomes.

Statement from DESNZ on the status of the documents:

"The documents are published for information, to start giving industry an insight into the technical standards. DESNZ will be putting in place a formal change management process to log, review, and, where appropriate, incorporate suggested amendments at a later date. To enable stakeholders to respond fully, DESNZ intend to commence this process only once further documents have been released. It will be at this stage that DESNZ will actively invite views on the draft HNTAS technical specifications and assessment procedures."

Given the importance of these documents, and the volume of information, we invite industry to already submit comments to CIBSE, to help us start building a response. Please use the following document to log your comments HNTAS Draft Documents CIBSE Comments Template, and email it to the Technical team at [email protected]. 

We will update this page as additional documents are published, and once further information on the formal commenting process and deadlines become available from DESNZ.