SLIDE 1
Submarine Electricity cables: Marine Licensing PAC Event Orkney 2016 - - PowerPoint PPT Presentation
Submarine Electricity cables: Marine Licensing PAC Event Orkney 2016 - - PowerPoint PPT Presentation
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
SLIDE 2
SLIDE 3
Who we are
- Scottish Hydro Electric Power Distribution (SHEPD) is the
licensed owner and operator of the distribution network
- f 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
SLIDE 4
SHEPD
Balancing the needs of two regulators Ofgem Marine Scotland
- We are regulated by Ofgem who are responsible for
protecting the interests of consumers and ensuring they have access to an affordable, secure and sustainable energy system.
- Ofgem set the amount of revenue that SHEPD can
receive, from consumers through their bill, in order to maintain the network.
- We need to satisfy Ofgem that major investment
decisions, such as changing the way we lay submarine cables are economic and efficient.
- We are regulated by Marine Scotland who enforce
Scotland’s National Marine Plan
- Through marine licences they enable users of the
marine environment to co-exist whilst ensuring a safe and thriving natural marine environment
- We need to satisfy them that the way we lay submarine
electricity cables is sensitive to other marine users and the environment
SLIDE 5
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
SLIDE 6
Our cost benefit analysis model
health and safety socio-economic environmental wider economic and engineering Stakeholder’s Views
SLIDE 7
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
- ther installation methods – which may make other
cable installation and protection methods more sustainable and better value for money
SLIDE 8
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
SLIDE 9
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
SLIDE 10
Mainland Orkney – Shapinsay
SLIDE 11
Shapinsay – Stronsay Cable
SLIDE 12
Rousay - Westray
SLIDE 13
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
SLIDE 14
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: subseaworldnews.com Source: hudsonproject.com Source: subseacablesuk.org.uk Source: offshorewind.biz Source: offshorewind.biz
SLIDE 15
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
SLIDE 16