Communal heating and Ofgem registration: a managing agent's checklist
Last checked against Ofgem's published guidance on 30 October 2026. Last updated 30 October 2026. How we check. Not legal advice; see disclaimer and sources.
Yes, if your block has a shared boiler or plant room supplying more than one home, it is a heat network and the organisation that supplies or operates it must register it on Ofgem’s Heat Networks Digital Service by 26 January 2027 (verified, sources at each step). Every network has to be registered; an estate run by one operator and supplier can combine its blocks into one registration (step 1). Narrow exemptions exist (a single HMO on a shared heating system, and some small conversions) and are covered at step 3; don’t assume one applies without checking.
Since 27 January 2026, existing heat networks have been “deemed authorised” by Ofgem and must register on its Heat Networks Digital Service. This is the checklist for a managing agent, RMC or RTM director, or freeholder with one or more blocks on communal heating.
- 1 Work out how many networks you have
- 2 Decide who is supplier and who is operator
- 3 Register by 26 January 2027
- 4 Join the Energy Ombudsman scheme
- 5 Start recording from April 2026
- 6 Organisation-level finance, once a year
- 7 Diary the windows
1 Work out how many networks you have
Every heat network has to be registered. A building with its own plant room is one network. An estate with one energy centre feeding five blocks is one district network with five “embedded communal heat networks”, six networks in all. Since 29 October 2026 Ofgem lets an operator and supplier of the whole site either combine them into one registration or register each separately, and the choice decides whether you later report data combined or network by network. A few site types, such as a district site with no energy centre of its own, can’t register yet. Verified: Ofgem, How to register district heat networks with embedded communal heat networks (29 October 2026). The regulation start date is verified: Ofgem, heat networks regulation is now live. Deemed authorisation is regulation 27 of the Regulations (“Deemed heat network authorisations”), verified: SI 2025/269, regulation 27.
2 Decide who is supplier and who is operator
| Role | What it means | In a self-managed block |
|---|---|---|
| Operator | Runs and maintains the network | Usually the management company |
| Supplier | Contracts to supply heat to consumers | Usually the management company too |
| Nominated operator | Where several operators exist, the first point of contact | Rare for a single block |
For a self-managed block where the management company pays the gas bill and recovers it through the service charge, the management company is usually both. Where a facilities contractor runs the plant under contract, the roles may sit with different organisations. Suppliers can only register once invited by the operator, and where several operators exist a “nominated operator” is the first point of contact. Verified for nominated operators: regular data reporting guidance, para 2.17. The operator starts the registration and then invites the supplier, who must already have created an organisation account on the digital service. Verified: Ofgem, How to prepare for registration.
3 Register by 26 January 2027
Registration opened in private beta in April 2026 on Ofgem’s digital service, “Comply with heat networks consumer protection regulations”. Existing networks must register by 26 January 2027. Verified: Ofgem blog on the digital service and reporting guidance para 2.14.
Registration starts with your regulatory contact signing in to, or creating, a GOV.UK One Login account — use an individual’s own work email, not a shared team inbox, since it’s tied to that person. The journey also includes a fit and proper declaration for everyone with significant managerial responsibility or influence over the organisation, not just the person doing the registering. Verified: Ofgem, How to prepare for registration.
Narrow exemptions: Ofgem’s examples of networks out of scope include “a single house in multiple occupation (HMO), where heating is supplied through a shared heating system” and “conversions of existing buildings where a property has been divided to create multiple dwellings within a building, that have one energy source with a capacity of no more than 45kWth”, as well as care homes and other single buildings not divided into separate premises. Verified: Ofgem, Heat networks: who needs to register. A typical purpose-built block of flats on a communal boiler is not one of these. Don’t assume an exemption applies without checking Ofgem’s page for your layout.
What the Regulations say: carrying on a regulated activity without authorisation is a criminal offence punishable by a fine (regulation 60), and Ofgem can impose a penalty on an authorised person of up to “the higher of— (a) 10% of the authorised person’s turnover; and (b) £1 million” (regulation 45). Verified: SI 2025/269, regulations 45 and 60. Existing networks are already deemed authorised (regulation 27), so how Ofgem will treat a network that misses the registration deadline is not something we have confirmed. Treat the deadline as hard regardless.
4 Join the Energy Ombudsman scheme
Authorised networks are bound by the Energy Ombudsman scheme. Ofgem’s reporting asks each quarter how many complaints you signposted to the Ombudsman at eight weeks or deadlock, so you need to be a member and have that step in your complaints process. Verified that the data point exists: Table 7, p21. The Energy Ombudsman says: “From 27th January 2026, all Heat Networks are regulated by Ofgem and must register as members of our scheme.” Verified: Energy Ombudsman, heat networks. For heat charged through a service charge, see the ombudsman guide on where the Housing Ombudsman fits.
5 Start recording from April 2026
Ofgem’s regular data reporting asks for data from April 2026, backdated once you register. It will accept what you have for April–June 2026. Ofgem says submissions through the digital service open “from Autumn 2026”, after it sends a Request for Information to registered networks; as of 30 October 2026 it hasn’t publicly announced the first window. Verified: guidance paras 1.7 and 2.14–2.15; How to prepare for data reporting.
Per block, start now:
- A complaints log: category (Ofgem’s six), date received, date resolved, group complaint flag, Ombudsman referral date.
- A heat debt log: customers over £200 outstanding for three months or more, repayment plans, disconnections, reconnections.
- A Priority Services Register, or at least a count of residents in vulnerable situations, handled under UK GDPR as special category data.
- Your tariff or your heat-element method, in writing.
- Counts: dwellings supplied, meters, heat cost allocators, prepayment meters, smart metering.
- Annual figures: fuel cost, kWh generated, kWh delivered, heat revenue, running costs.
6 Organisation-level finance, once a year
Unless you are a council or a registered social housing provider, the authorised organisation reports eight finance points annually: continuity plan, 12-month resources, profit or loss, income, operating costs, liquid assets, whether assets exceed liabilities, and hedging. Due in the quarter your accounts are signed off, within 10 months of year end. Verified: Table 3 and para 2.6. For an RMC this is the RMC’s own accounts.
7 Diary the windows
Quarterly windows are the month after each quarter; the annual return is 1–30 April. Full table on our deadlines page.
What this checklist doesn’t cover
The other authorisation conditions: fair pricing, standards of conduct, supply contracts, back-billing limits, prepayment and self-disconnection protections, and continuity arrangements. There are 29 conditions across sections A to C: A1–A15 for every authorised person, B1–B12 for suppliers, C1–C2 for operators. Verified: Ofgem, Heat networks regulation: authorisation conditions — decision, 13 January 2026. Read Ofgem’s authorisation conditions directly for those; our guides on the Priority Services Register and complaints and the ombudsmen cover conditions B8 and B4.
One gap worth knowing about: Guaranteed Standards of Performance (compensation when supply is interrupted) isn’t part of the January 2026 authorisation conditions — Ofgem is developing it through further consultation. Heat Trust, whose voluntary scheme covers this for its member networks, says Ofgem “will also be consulting during 2026 on further authorisation conditions that it plans to phase in at a future point, such as guaranteed standards of performance.” Verified: Heat Trust, Coming regulation.
Which of these apply to your network?
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Related guides
- Heat in the service charge? You are probably a heat supplier — What "bundled charges" mean for reporting and how to work out the heat element.
- Ofgem heat network quarterly reporting: what small networks must submit — The quarterly and annual data points, who reports what, and the windows.
- All 9 guides to Ofgem heat network reporting
What changed on this page
- 30 October 2026
- Full source re-check. Exemptions corrected to Ofgem's own wording (a single HMO on a shared heating system; conversions with one energy source of no more than 45kWth), which the page had described wrongly. The penalty line, previously unverified, now quotes the Regulations: an offence under regulation 60, and penalties of up to the higher of 10% of turnover or £1 million under regulation 45; how a missed registration is treated stays unverified. Deemed authorisation is cited to regulation 27. The Heat Trust sentence now quotes what its page says; the earlier quote was not on it. The Request for Information is cited to guidance paragraph 1.7. The Energy Ombudsman membership point is now verified against the Ombudsman's own page.
- 30 October 2026
- Re-checked against Ofgem's updated registration and data reporting pages. The district network registration count is now verified against Ofgem's guidance of 29 October 2026, which also lets an operator combine embedded blocks into one registration. The direct answer and step 1 now say every network has to be registered, rather than that each registers separately. The supplier invite flow is now verified. Registration is described as opening in private beta, as Ofgem's blog says. The first data window is no longer described as expected in autumn: Ofgem still says 'from Autumn 2026' but had not announced it publicly by 30 October.
- 16 September 2026
- The number of authorisation conditions is now verified against Ofgem's authorisation conditions decision (13 January 2026): 29, as A1–A15, B1–B12 and C1–C2. Label changed from unverified to verified; links added to the new Priority Services Register and ombudsman guides.
- 16 September 2026
- Direct answer added at the top; a roles table added at step 2; Ofgem's 'How to prepare' links updated to their new addresses. No facts, sources or labels changed.
- 16 September 2026
- Added from Ofgem's registration guidance: GOV.UK One Login, the fit and proper declaration, and the HMO and converted-building exemptions. Added Heat Trust's note that Guaranteed Standards of Performance are not yet part of the authorisation conditions. Step-by-step navigation and the roles diagram added.
- 15 September 2026
- First published, checked against Ofgem's regular data reporting guidance of 10 March 2026 and Ofgem's blog on the digital service opening.
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