Scottish Hydro Electric Power Distribution Submarine Electricity cables: Marine Licensing PAC Event Orkney 2016
Who we are • Scottish Hydro Electric Power Distribution (SHEPD) is the licensed owner and operator of the distribution network of overhead lines, underground and submarine cables across and around the north of Scotland • 59 Scottish islands are currently connected via submarine electricity cables through 454 km of cables (some for over 50 years) • These cables provide a safe and secure supply of electricity to and from the islands
Balancing the needs of two regulators • We are regulated by Ofgem who are responsible for • We are regulated by Marine Scotland who enforce protecting the interests of consumers and ensuring they Scotland’s National Marine Plan have access to an affordable, secure and sustainable energy system. • Through marine licences they enable users of the • Ofgem set the amount of revenue that SHEPD can marine environment to co-exist whilst ensuring a safe Marine receive, from consumers through their bill, in order to and thriving natural marine environment Ofgem SHEPD maintain the network. Scotland • We need to satisfy them that the way we lay submarine • We need to satisfy Ofgem that major investment electricity cables is sensitive to other marine users and decisions, such as changing the way we lay submarine the environment cables are economic and efficient.
Why we are consulting The sea is a challenging environment for electricity submarine cables We carefully choose routes and installation methods to maintain the health of the cable We want to harness your local knowledge to help us make the best value decision around how we install and protect our cables We will capture your views in our cost benefit analysis model and our marine licence application
Our cost benefit analysis model health and safety wider economic and engineering Stakeholder’s Views socio-economic environmental
Our cost benefit analysis model We found that surface laying is cost efficient, but the model reveals that sometimes greater benefits can be attained socially, economically and environmentally for other installation methods – which may make other cable installation and protection methods more sustainable and better value for money
Marine Licensing – PAC process The installation of submarine electricity cables is classified as a licensable marine activity - Marine Licensing (Pre- application Consultation) (Scotland) Regulations 2013 Consultee PAC notification - Commissioners of Northern Lighthouses - Maritime and Coastguard Agency - Scottish Environmental Protection - Scottish Natural Heritage - Marine consultees where the application is carried out or partly in that region
Marine Licensing – PAC process 10/06/16 • Initial PAC notification to statutory consultees 02/08/16 • Local consultation event 26/08/16 • Consultation period closes, collate views and consultee comments 27/10/16 • SHEPD review comments and preparation of licence submission 28/10/16 • SHEPD licence submission to Marine Scotland 31/10/16 • Marine Scotland review and 28 day consultation period 16/12/16 • Marine Scotland issue/reject licence application
Mainland Orkney – Shapinsay
Shapinsay – Stronsay Cable
Rousay - Westray
Visit our PAC Event to find out about each route in more detail: Map 1 – Route Chart Provides a high level overview of electricity submarine cable location. Map 2 – Current Surveyed Route Chart Provides a more detailed overview of the area we surveyed in 2015 Map 3 – Bathymetric Chart Provides a 3D model of the marine environment Map 4 – Route Cross Section Provides a cross section of seabed depth and sediment depth
Cable installation methods we considered 1. Surface Laying 2. Mass Flow Excavation 3. Jetting 4. Ploughing 5. Concrete Mattresses 6. Rock Placement 7. Horizontal Directional Drilling Source: offshorewind.biz Source: subseaworldnews.com Source: hudsonproject.com Source: subseacablesuk.org.uk Source: offshorewind.biz
We have divided the cable route up into sections of similar seabed types and are seeking your views around: • Whether protection is required • What type of laying and protection process you would like us to use • The reason for your choice
Further questions and comments Online http://news.ssepd.co.uk/submarinecables/ Email submarinecables@sse.com Post Scottish Hydro Electric Power Distribution Inveralmond House, 200 Dunkeld Road Perth PH1 3AQ
Recommend
More recommend
