In order to provide complete functionality this website needs your consent to store browser cookies. If you don't allow cookies, you may not be able to use certain features of the website including,but not limited to log in, order services, see personalised content or switch between languages. It is recommended that you allow cookies. More information

South Wales


Western Power Distribution and Regen have developed scenarios for the growth of demand and DG in South Wales. We held a stakeholder engagement event in Cardiff on the 15th June 2016. Click here for the WPD slides from the event.

Regen’s report on the scenarios is available below:

Regen SW methodology to assess distributed generation and demand growth scenarios to 2030


Network studies

We have used the scenarios developed below to assess the impact of future DG and demand growth on the South Wales subtransmission network. Below is the report on these network studies:

Shaping Subtransmission to 2030 South Wales 2016

An accompanying network diagram and map are also available.

We hosted a webinar to further describe and discuss these studies on 24th February 2017. A recording of the webinar can be viewed below:

To view the slides of the webinar please click here

Contact us

Emergency information

0800 6783 105

General contact enquiries

0800 096 3080