Heat Network Registration Guide

All operators of relevant heat networks in Great Britain must register with Ofgem by 26 January 2027. Ofgem's digital registration service opens in spring 2026. Failure to register by the deadline constitutes a breach of the authorisation conditions and is subject to enforcement action.

What You Need to Register

• Network organisation, ownership structure, and corporate details
• Financial resilience arrangements (including any relevant exemptions)
• Consumer protection documentation — complaints procedures, vulnerability policies, and Standards of Conduct compliance
• Network technical details — location, size, heat source, and number of consumers
• Metering and billing arrangements

Preparing Your Documentation

Registration requires operators to have their compliance documentation in order before submission. This includes policies and procedures mapped to Ofgem's authorisation conditions, consumer-facing documents in plain language, and evidence of governance arrangements.

Registration Timeline

Ofgem's digital registration service opens spring 2026. Operators with deemed authorisation can continue to supply heat while preparing for registration, but consumer protection obligations under the authorisation conditions have been enforceable since 27 January 2026.