How to register a heat network with Ofgem

All heat network operators in Great Britain must obtain Ofgem authorisation under the Heat Networks (Market Framework) (GB) Regulations 2025. The deadline is 26 January 2027. Ofgem’s digital registration service is expected to open in spring 2026.

Who needs to register?

Every organisation operating a heat network supplying consumers – district heating, communal heating, ambient loops. Regardless of size. Existing operators receive deemed authorisation during transition but must still complete the formal process.

What information you will need

Organisation details

Legal entity name, registration number, registered address, Ofgem operator ID if existing.

Network information

Name, type, location, consumer connections, annual heat demand, fuel source – per network.

Consumer protection evidence

Billing arrangements, complaints procedure, welcome pack, Priority Services Register.

Financial resilience

Working capital, insurance, emergency funding – typically a Financial Resilience Statement.

Supply continuity

Contingency arrangements, step-in procedures – typically a Supply Continuity Plan.

Operational registers

Data reporting systems, staff training records, and depending on network profile: HNTAS, water treatment, metering compliance.

Preparing now

Prepare documentation before the digital service opens. This gives time to gather evidence, consult internally, and address gaps rather than rushing during a compressed application window.

Scotland

Scottish operators must satisfy both the Heat Networks (Scotland) Act 2021 licensing regime and the Market Framework Regulations 2025.

Next steps

For authoritative guidance, visit Ofgem’s heat networks section. Heat Network Compliance Hub offers documents designed for this process – view products or see pricing.

More background: What is heat network compliance?