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​​Become a DCUSA Party

The Electricity Distribution and Supply Licences require all Licensees to become Party to the DCUSA. The Off-shore Transmission System Operator (OTSO), Distributed Generators and Gas Suppliers can also choose to accede. 

If you are required to become a Party to the DCUSA and have not done so already, please complete the following form. 

All completed applications will be logged in a secure database for purposes of tracking and administration, and will be submitted directly by email to the DCUSA Helpdesk. We aim to respond to your application within one working day. 

Alternatively, click here for a paper based copy of this application form. This should be submitted to the DCUSA Helpdesk by: 

Email: ​

Fax: 020 7432 3015 

Post: DCUSA Ltd, Northumberland House, 303-306 High Holborn, London WC1V 7JZ

Company Name*

Please enter full Company Name as registered at Companies House

Company Group*

Party Constituency*

Market Participant ID*

Registration Number*

Enter Company Registration Number

Registration Address

Address For Notices

License Status*

Date Of License*
Select a date from the calendar.
Contract Manager  

First Name*

Last Name*

Job Title

Email Address*

Email Address (Confirm)*

Email Address 2

Email Address 2 (Confirm)

Phone 1*

Phone 2


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Should you have any further queries, please contact the DCUSA Helpdesk at​ or by calling 020 7432 3011.