Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, how many and what proportion of applications her Department has received from heat suppliers via the Energy Bills Discount Scheme; and how many individual heat networks are covered by those applications.

The Department has received around 14,400 Energy Bills Discount Scheme applications for heat networks. There is no centralised list of heat networks across the UK, or how many domestic customers these networks serve. The most reliable data we have access to is taken from the Heat Network Metering and Billing Regulations, which estimates that there are 8,900 heat networks serving residential customers in the UK.