Wether Hill Wind Farm Connection

Scotland is a world leader in the fight against climate change. We are producing more clean, green energy than ever before, and we need to strengthen the transmission network so we can get it to the homes, businesses, hospitals and public services that need it.

SPEN is required in terms of its statutory and licence obligations to provide for new electricity generators wishing to connect to the transmission system in its licence area. SPEN is also obliged to make its transmission system available for these purposes and to ensure that the system is fit for purpose through appropriate reinforcements to accommodate the contracted capacity.

An application was received via the National Electricity System Operator from the Wether Hill Wind Farm developer requesting a connection from the wind farm substation to the grid. As such, we are proposing to build an overhead line (OHL), to connect the wind farm to the electricity transmission system via a proposed collector substation at Quantans Hill, to be approved as part of a separate project.

The Proposal

The Wether Hill Connection involves the construction of a new 132kV overhead line between the Wether Hill Wind Farm located approx 8km west of Moniaive, within Dumfries and Galloway and the proposed Quantans Hill substation, approx 4km east of Carsphairn. The new overhead line connection will be supported on trident wood ‘H’ poles.

Project Documents

Routeing and Consultation Document

EMF – The Facts Leaflet

GDPR Statement

Brochure Boards

Have your say

We are consulting the public on our proposals between 22 April 2025 to 23 May 2025.

You can view physical consultation materials and share feedback at the following event: Thursday 8 May, 3pm - 6pm, Lagwyne Hall at Lagwyne Hall, Carsphairn, DG7 3TQ.

You can also share your views by email at wetherhillconnection@spenergynetworks.co.uk or write to:

Wether Hill Wind Farm Grid Connection
Land and Planning Team
SP Energy Networks
55 Fullarton Drive
Glasgow
G32 8FA

What happens next

Following the first round of consultation we will develop a detailed design and alignment for the new project overhead line, including locations for wood poles, access routes and working areas. We will publish a report summarising the feedback received in this first round of consultation and how this has influenced our proposals.

We will carry out environmental surveys and reports, and hold a second round of public consultation, so that people can give us their views on detailed route alignments.

After considering the feedback received in the second round of consultation, we will finalise our project proposals and submit consent applications to the Scottish Government’s Energy Consents Unit, for consideration by Scottish Ministers. The Scottish Ministers will then undertake a final round of statutory consultation before making any decision on our applications.