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Overhead line connection from Knockodhar Wind Farm to Mark Hill Substation

Update [25.10.21] - Consultation response summary report added for download.

The proposed development would provide a 132kV, wood pole, overhead line connection from Knockodhar Wind Farm to the transmission grid system at Mark Hill substation in South Ayrshire.

Due to current restrictions relating to the Covid-19 pandemic, a virtual, online consultation process is being undertaken, rather than a town hall presentation format.  This will allow people to view the project information in a virtual environment and to leave comments on the preferred overhead line route. Hard copies of the Routeing and Consultation Report can be downloaded from this page and information leaflets will be distributed locally too. Feedback from this event will then be considered by SP Energy Networks prior to the proposed route being determined.

The virtual consultation can be accessed from this link:

This project will involve the construction of one new 132kV overhead line (OHL) supported on wood poles, typically 11m to 16m in height (above ground), including insulators, with span lengths of approximately 80m-110m and a total route length of approximately 2.09km. A section of underground cable approximately 500m long would also form part of the connection for technical reasons as it enters Mark Hill substation.

Please note - Comments at this stage are informal and are made to allow SP Energy Networks to determine whether changes to the route are necessary. An opportunity to comment formally to the Energy Consents Unit will follow at a later stage in the process following consultation by the Scottish Government once the application is submitted to them.

Following establishment of the proposed route, SP Energy Networks intends to submit an application to the Scottish Ministers for consent under section 37 of the Electricity Act 1989 and deemed planning permission under section 57 of the Town and Country Planning (Scotland) Act 1997. Submission of the Section 37 application is currently anticipated for August 2021.

Documents for download

SP ENERGY NETWORKS – Planning Consultation Privacy Notice

This privacy notice describes how SP Energy Networks ("SPEN") processes your personal data in connection with its business activities. In this Policy, references to "we", "us", and "our" (and other similar terms) means SPEN and "you" and "your" (and other similar terms) mean our customers, contacts, and website visitors.

SPEN will process your personal data when you submit an enquiry, feedback or comments in connection to a planning consultation. This data will be collected directly from you either; face to face at a consultation event, via feedback forms, by email to the project mailbox, by written response or by telephone.

SPEN may collect from you and process the following categories of personal data:

  • Identification and contact information i.e. Name, Address, Email and Telephone;
  • Information in relation to recreational activities you participate in at the area of the planned project;
  • Specific details relating to your comments, feedback and/or opinions related to the plans; and
  • Please note if you submit a query via our website cookies may collect some data e.g. IP location, if you would like  more information and to manage your preferences please see our cookies policy.

Under Data Protection Legislation our lawful basis for processing your personal data is in connection to our legal obligations to undertake public engagement in line with Environmental Impact Assessment legislation.

SPEN may share your personal data with contracted third-party service providers and processors who provide support to the planning project. However, the personal data will not be shared with any other third-parties unless we are required to do so by law.

We have in place appropriate technical and organisational security measures to protect your personal data against unauthorised or unlawful use, and against accidental loss, damage or destruction. We have put in place strict confidentiality agreements (including data protection obligations) with our third-party service providers and processors. We will process and retain your personal data for the duration of the project and in line with our retention schedule.

Your personal data will be processed and stored within the UK or the European Economic Area (“EEA”). In any instances where this data is to be transferred out with these areas, we will implement appropriate safeguards and security measures.

SPEN are part of the Iberdrola Group and as such any data transfers that occur within the group are carried out in accordance with the applicable data protection laws and our Binding Corporate Rules (“BCRs”). The Iberdrola Group’s BCRs reflect European legislation on data protection (General Data Protection Regulation) which means that all companies in our Group have to comply with the same internal rules. You can download a copy of the Iberdrola BCR here .

In accordance with Data Protection Legislation you can exercise any of the following rights by contacting us at

  • Right of access – you have the right to obtain confirmation of what personal data is being processed and to receive a copy of this personal data
  • Right to rectification – you have the right to have your personal data rectified if it is inaccurate or incomplete
  • Right to erasure (Right to be forgotten) – you have the right to request the deletion or removal of your personal data where there is no legal basis for its continued processing
  • Right to restrict processing – you have the right to request that we block or suppress processing of your personal data
  • Right to object to processing – you have the right to object to the processing of your personal data, under certain circumstances
  • Right to data portability – you have the right to obtain and reuse your personal data for your own purposes across different services

For more information on how SPEN process personal data please our full privacy notice.

Additionally, if you believe that your personal data is not being processed in line with this privacy notice you have the right to lodge a complaint with our Data Protection Officer, by contacting:


Data Protection Officer
Scottish Power UK
320 St Vincent Street
G2 5AD

If you are not satisfied with the response, you have the right to lodge a complaint with the UK Information Commissioner’s Office (ICO)  by contacting:

Information Commissioner's Office
Wycliffe House
Water Lane

Tel: 0303 123 1113



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