1 / 20

Combining offshore wind and interconnection Paul Cooley

Combining offshore wind and interconnection Paul Cooley. Who is SSE?. Parent company of Airtricity UK’s broadest based energy company Energy Networks £4.7bn (RAV) Energy Supply 9 million customers Generation Over 10,700MW

cora-collier
Download Presentation

Combining offshore wind and interconnection Paul Cooley

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Combining offshore wind and interconnection Paul Cooley

  2. Who is SSE? • Parent company of Airtricity • UK’s broadest based energy company • Energy Networks £4.7bn (RAV) • Energy Supply 9 million customers • Generation Over 10,700MW • Renewable Generation Over 2,200MW(wind, hydro, biomass)

  3. 3.5GW renewable portfolio UK and Ireland • Plus 1.5GW either under construction or consented

  4. Interconnected HVDC/AC pan-European grid • Vision of pan-European grid will inevitably require significant offshore grid development • Concentrations of HVDC terminals, offshore wind parks and increased interconnection • Fundamental shift in how we view offshore transmission grids

  5. Den Helder Site • 14km by 13km offshore wind farm site located ~100km off the Dutch coast and ~150km off the UK coast • Four phases of construction (468MW already consented) leading to a total capacity of approx. 1.8GW • Construction 2012 - 2015 • Connection Study • Identify potential points of common coupling with existing grid systems • Four solutions considered; two in the UK and two in the Netherlands • Conceptual modular design and costing for the offshore collector arrays, offshore substations, transmission link and onshore substations • Technical and economic feasibility of the HVDC connection options and set against AC alternatives • Identified opportunity to integrate connection of wind farm with interconnector.

  6. Potential Grid Connection Points

  7. 4 stages – 468MW consented

  8. HVDC Conceptual Design

  9. Why are offshore supergrids not developing? • Lack of regulatory framework and alignment between member states - licencing, legal framework etc • Member states focused on meeting national targets • Differing trading and green certificate mechanisms within EU • Difficulty in defining long term economic benefits at the project level

  10. + + - - + + - - Shetland Blackhillock

  11. Opportunity – Den Helder as test case • Unique interface issues between UK and NL regulatory regimes • OFTO • Green Certs/ROCs • Interconnector licensing • EU/UK interface issues common to any North Sea or Irish Sea developments • 1.8GW site mid-way between two EU states • Economics of scale and distance justify interconnection • UK/Scotland - very large on & offshore wind penetration (30GW by 2020) • NL on and offshore wind developing rapidly – 6GW by 2020 • Existing interconnection with NL • Onshore grid challenges

  12. Offshore Grid Scenarios

  13. Offshore Grid Scenarios

  14. Offshore Grid Scenarios

  15. Offshore Grid Scenarios

  16. Difficulties • Technical • Technology available but detail examination required • Some level of alignment – role for ENTSO-E? • Licensing • OFTO vs Interconnection vs TSO • Multiple licenses for same project? • Need to define boundaries & interfaces – role for ACER? • Markets • Scenarios demonstrate complex power flows • Actual power flow vs movement of green certificates • Metering points & arrangements critical

  17. Options • Use existing legislation & regulatory framework • Modify existing arrangements • Create new arrangements specific to integrated offshore wind/interconnection hybrid • Timescale critical…..& • Need a solution which fits with all previous scenarios

  18. Key Stakeholders

  19. Path Forward Scope document completed Working group with key stakeholders Analysis of existing arrangements Proposal paper from SSE/Airtricity

More Related