Do I need to register my heat network?
Four questions tell you whether the network must be registered with Ofgem on or before 26 January 2027, and which of the 29 authorisation conditions would apply. Ten more show how ready you are, where the biggest gaps are, and a starter plan to close them.
Your answers stay in your browser, and the result is free on screen. An email address is asked for only if you want the report sent to you. It applies the same applicability rules the Caldora platform applies internally, so the answer is the one the product would give.
The short version
A heat network is any arrangement supplying heat, cooling or hot water from a central source to two or more end users. That is a wider net than most people expect: it catches communal systems inside one building, not just district schemes across a site.
Registration is per network. A landlord with twelve buildings has twelve registrations. Whether you register as operator, supplier or both decides which conditions you then carry. Appointing a managing agent or contractor to do the work does not move the accountability. Appointing an ESCO under a long-term contract is different: the ESCO takes on the operator or supplier role itself, so the accountability moves with it. The condition guidance recognises that distinction.
The deadline is 26 January 2027, how to register is explained here, and the full text of every condition is published here.
Common questions
Do I need to register my heat network with Ofgem?
If you operate a heat network, or supply heat, cooling or hot water over one to two or more end users, it must be registered with Ofgem by 26 January 2027. This applies to communal networks inside a single building as well as district networks, and to arrangements where heat costs are recovered through a service charge.
Which Ofgem conditions apply to my heat network?
Section A applies to every authorised person. Section B applies to suppliers: its standards of conduct protect every consumer, most other Section B conditions protect homes and small or micro businesses, and B8 to B12 protect homes only. Section C applies to the operator of the network. Industrial and self-supply networks have Sections B and C disapplied entirely.
How ready is my heat network for Ofgem?
After the four registration questions, the checker asks ten more about the evidence the conditions call for, such as a written complaints procedure, a Priority Services Register and a continuity plan. It gives a readiness score by section, the biggest gaps in Ofgem's own words, and a starter plan you can have emailed as a PDF. It is free, and it is a guide rather than legal advice.