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Heat networks regulation timeline

We want to make sure heat network customers get similar protections to gas and electricity consumers. 

Our regulations will focus on:  

  • good customer service 
  • improving reliability of energy supply 
  • transparent, easy to understand energy bills 
  • fair pricing 
     

Timeline for regulation 

We will introduce heat networks regulation in a number of phases.

Launch of consumer advocacy and advice services (1 April 2025)

From 1 April 2025, heat network customers can get free, impartial advice and support to resolve problems with their heat network operator from:

Customers can also complain to the Energy Ombudsman if:

  • a problem they have reported to their heat network operator is not fixed within eight weeks 
  • they receive a “deadlock letter”, stating their problem cannot be fixed 
  • they're not happy with the response they get from their heat network operator 

For more information, see our Get advice on heat networks page.

Registering with the Energy Ombudsman

In preparation for regulation, we’re encouraging all heat network suppliers and operators to register with the Energy Ombudsman. This will make sure any unresolved disputes with customers can be handled without confusion or delay.  

We’re also encouraging heat network suppliers and operators to follow existing good practice as set out by the Heat Trust.

Authorisation of heat networks (1 April 2025 to 26 January 2027)

All heat networks operating before January 2027 will be automatically authorised. This is called ‘deemed authorisation’.

After this period, authorisation will be granted by application to Ofgem.

Launch of regulations (27 January 2026)

Our regulations for heat networks will start to come into effect from 27 January 2026.  From this date, heat networks suppliers and operators will need to comply with these regulations, which introduce new rules to protect customers.

Registration (Spring 2026 to 26 January 2027)

Operators of heat networks with deemed authorisation must register with us using the heat networks digital service by 26 January 2027.