Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, what estimate his Department has made of the annual cost of Distribution Use of System charges since 2002.

The Government does not hold this information. Distribution Use of System (DUoS) charges are paid for by electricity suppliers and distribution connected generators

and passed onto consumers through electricity bills. Each Distribution Network Operator (DNO) publishes charging statements every year, which are publicly available on their websites. The system is experiencing rising DUoS charges, due partly to the costs of upgrading the network to connect renewable generation and storage. However, the Government does not hold estimates apportioning overall distribution network costs to these generation sources specifically.