Know what you have. Know what each one needs. Know what to do next. Heat network regulation has changed what property owners, operators and suppliers need to know about the networks they manage. You need to understand what networks you have, who operates them, who supplies the heat, what information is available and what still needs attention. Spinview brings the network, the organisations involved, and its information, evidence and performance into one connected view. Start with what you have. See what you need. Know what to do next. Start the Readiness Builder See what you need for Ofgem Ofgem and HNTAS. What do they mean for you? The two deal with different responsibilities. Ofgem regulates the organisations that operate heat networks and supply heat. HNTAS is being developed to introduce technical assurance of the networks themselves. Ofgem New responsibilities for heat network operators and suppliers are already in force. Ofgem regulates heat networks in Great Britain, bringing consumer protections similar to those already established in the gas and electricity markets. If you operate a heat network, supply heat, or do both, you need to understand which requirements apply to you, hold the information and evidence behind them, and provide ongoing regulatory reporting. Relevant existing heat networks must be registered with Ofgem by January 2027, and reporting continues every quarter and every year after that. Prepare for Ofgem HNTAS Technical assurance for how your heat network performs is coming. HNTAS is the developing technical assurance scheme for heat networks, introducing technical requirements for how networks are measured, assessed and assured. Current published proposals cover performance and reliability, metering and monitoring, improvement and eventual certification. For existing networks, preparation starts with understanding what you have today. What can you measure, what does the available data tell you, and where are the gaps? Prepare for HNTAS Regulatory status. Ofgem heat network regulation is in force. Existing heat network operators and suppliers within the applicable framework were deemed authorised when regulation commenced, and regulatory requirements already apply. Relevant existing heat networks must be registered by January 2027. HNTAS is still being developed. Government plans a phased introduction from 2027 following consultation, and the detailed requirements and implementation timetable may change before the final regulations and scheme documents are published. Where should you start? Start with the properties you manage and find the networks within them. Everything else follows from that. Start the Readiness Builder Does this apply to me? Prepare for Ofgem Prepare for HNTAS See how Spinview helps
Heat network regulation and technical standards continue to develop. We review our guidance against information published by Ofgem and the Department for Energy Security and Net Zero, and show the latest review date on regulatory and technical pages.
This website provides general information and practical tools. Requirements depend on the circumstances of each heat network, and this site is general information rather than legal, regulatory, financial or engineering advice. Where specialist advice is required it should be provided by an appropriately qualified adviser.
Spinview helps organisations collect, organise, review and maintain heat network information and evidence. RAG status shows information readiness within Spinview and is not a regulatory compliance determination. Regulatory responsibility, and the compliance determination itself, remains with the relevant operator or supplier.
Regulatory and technical sources last reviewed: 16 August 2026.