Towy Usk is a proposed 132kV electricity connection that would connect between the proposed Nant Mithil Energy Park in Powys to a new National Grid connection point near Llandyfaelog, Carmarthenshire. As electricity demand grows across Wales, the project would add much-needed capacity to the network, helping connect renewable energy generation and support a more secure, sustainable supply of clean, home-grown electricity.
Our revised proposals – Autumn 2026
Thank you to everyone who has taken part in the Towy Usk Grid Connection Project. Your feedback, local knowledge and insights have helped shape the proposals presented in this consultation.
Building on what we have heard, and informed by ongoing environmental, technical and engineering assessments, we are consulting on the Draft Route Alignment – Autumn 2026 and associated infrastructure needed to deliver the proposed connection.
We are seeking your feedback on:
- An updated Draft Route Alignment – Autumn 2026.
- A new monopole design proposed across Sections 2 to 5.
- Proposed temporary access areas and compounds required during construction.
- A revised switching station location, relocated from Section 1 to Section 4.
- An extended underground cable section within Section 5.
View our proposed changes – Autumn 2026
To explore the latest proposed changes in more detail, view our Interactive Map and Consultation Brochure, which provide detailed information on the Draft Route Alignment – Autumn 2026, proposed infrastructure, and the key changes made since 2024. You can also find details of the consultation and how to submit your feedback.
While these represent our most developed proposals to date, they are not final and remain open to influence. We encourage you to review the proposals and share your feedback as we continue to refine the project.
