The Water Act 2003 extends the opportunities for competition in water supply.  Non-household customers who are likely to use at least 50 million litres of water a year at a single site can switch supplier.  Suppliers can supply water either by developing their own water source and using Southern Water’s network to transport this to their customer or by buying a wholesale supply of water from us.

As an existing water undertaker we are required to publish a Network Access Code which sets out the basis on which we will allow alternative suppliers to access our network.  This code must be in accordance with detailed guidance drawn up by our regulator Ofwat. 

Our Network Access Code, available in Adobe Acrobat PDf format, can be accessed by clicking on the link below.

Network Access Code version 3.2a published February 2008 

To view the appendices for the Network Access Code click on the links below.
Please note, some files are Adobe Acrobat PDF format, others marked * are in Microsoft Word format.

Appendix A - Draft Confidentiality Agreement *

Appendix B - Schedule of Charges*

Appendix C - Combined Supply - Initial Information *

Appendix D - Combined Supply - Initial Application  *

Appendix E - Wholesale Supply - Customer Information *

For the convenience of licensees, a draft Wholesale Master Agreement is available on the link SW Draft WMA

Customers who may be eligible to change supplier can get more information about the new competition arrangements by contacting their Corporate Account Manager. 

Any potential licensees can find out more information from Ofwat at www.ofwat.gov.uk.**

Queries about Southern Water’s Access Code and indicative prices should be directed in the first instance to our Corporate Accounts team:

Corporate Accounts Team 
Southern Water
Southern House
Yeoman Road
Worthing
BN13 3NX

Email: wslenquiries@southernwater.co.uk

Tel. 01903 272456

** Southern Water is not responsible for externally linked websites.