In April 2017, the WSL regime was replaced by the new Water Supply and Sewerage Licensing (WSSL) regime, allowing new entrants to compete and provide certain water services.
There are two types of WSSL:
To facilitate the WSSL process, two key documents have been created in accordance with the Water Act 2003 and comply with Ofwat’s guidance:
Eligibility guidance is published by Ofwat and more information on the market can be found on the Open Water website.
New Appointments and Variations (NAVs)
Also referred to as Insets
Visit our NAV page to see details of services available to NAVs.
For further information on competition in water, please contact:
Wholesale Market Unit
Severn Trent Centre
2 St John’s Street,
Coventry
CV1 2LZ
Email: WMU@severntrent.co.uk
Email: NAVenquiries@severntrent.co.uk (for inset / NAV enquiries only)