Transcript 0148 RenewableUK 2010 EU OffshoreGrid

The Super Smart Windy Grid –
The Offshore Option
Presentation by Peter McGarley
RenewableUK 2010
Glasgow SECC 3rd November
www.senergyworld.com
Senergy Econnect
• International consultants and advisors
in renewable energy and grid
integration
• Over 50GW of grid integration studies
for wind with ~3GW projects connected
• Services include:
• Electrical engineering
• Consultancy
• On-site generation
• Smartgrid products
• Grid connection feasibility
• Electrical design
• Grid code compliance
• Technical adviser
• Due diligences
• Technical services
• Commercial & regulatory
• Strategic services
• Geophysical and
• Foundation design,
geotechnical consultancy
• Cable routing and burial
protection indices
construction and
installation assessment
EU OffshoreGrid
• PROJECT DNA
• Techno-economic study
• Coordinator 3E, 8 partners, consultancy &
applied research
• Budget: 1.4 million euros
• Funding: 75% from Intelligent Energy Europe
(Contract IEE/08/780/SI2.528573)
• May 2009 to October 2011
Consortium Members
• CONSULTANTS
• 3E: strategy, techncial coordination, management
• Senergy Econnect: Grid design optimisation
• IEO: thorough knowledge on wind power policy
• dena: power markets and regulatory situation
• APPLIED RESEARCH
• Sintef: power market model and TradeWind experience
• Uni Oldenburg: energy meteorology
• NTUA: wind energy in the Mediterranean
• INDUSTRY ASSOCIATION
• EWEA: communication and technical review
• STAKEHOLDER INPUT / REVIEW
EU OffshoreGrid
• GENERAL OBJECTIVES
• Recommendations on topology and capacity choices
• Guideline for investment decision & project execution
• Trigger a coordinated approach for the Mediterranean ring
• SPECIFIC OBJECTIVES
• A selection of blueprints for an offshore grid
• Business figures for investments and return
• Insight in interaction of design drivers and techno-economic
parameters
• Representative wind power time series
• Feedback from & acceptance by stakeholders
EU OffshoreGrid
• Senergy Econnect scope:
• To provide the technical design for an integrated offshore
transmission network allowing connection of offshore wind
and marine renewables and interconnection between the
countries of the Baltic and North Seas for the purposes of
arbitrage where justified
• Technical design is integrated in to a power market model of
the European grid produced by SINTEF to assess power
flows on offshore grid – iterative process
• To provide a cost estimate for such a network or networks
EU OffshoreGrid Reference
• Planned offshore wind and marine
OffshoreGrid offshore scenario
Country
2020
2030
Belgium
1 994
3 794
Denmark
2 329
3 799
Estonia
0
1 600
Finland
590
3 190
France
2 510
4 914
Germany
10 249
26 553
Ireland
1 055
3 780
Latvia
0
900
Lithuania
0
1 000
4 622
12 122
Norway
957
9 667
Poland
500
5 300
Russia
0
500
Sweden
2 983
10 522
UK
15 303
38 146
Total Northern EU
42 135
115 620
Total OffshoreGrid
43 093
125 787
Netherlands
EU OffshoreGrid Reference
• ENTSO-E - TYNDP
Radial Scenario
• Initial step – define radial scenario
• Each project connected radially to selected onshore
connection point
• Appropriate technology solution selected based on project
capacity, timing and connection distance, e.g.
• HVAC technology ineffective beyond 80km
• Projects <2020 use technology commercially available today
• Projects >2030 use evolved technologies
• Connection distance determined by GIS plots around
subsea obstacles
Key Design Assumptions
•
OffshoreGrid technology used to be evolutionary rather than
revolutionary
Pre 2010
150kV HVAC 3 core subsea cable
+/- 150kV 400MW HVDC Voltage Source Converters
2010
2020
220kV HVAC 3 core subsea cable
+/-320kV 1000MW HVDC Voltage Source Converters
320kV XLPE subsea HVDC cable
2020
2030
380kV HVAC 3 core subsea cable
+/-500kV 2000MW HVDC Voltage Source Converters
500kV XLPE subsea HVDC cable
HVDC Circuit Breakers
Radial Scenario
Radial Scenario
• Statistics:
• Total Connected Capacity = 129GW
• Total Cost = €83.201bn
• €643k/MW
• Total length of cable = 31,500km
• 294 HVDC VSC converter stations
Hubs
• 1st stage of
Offshore Grid
• Group projects
into hubs and
share export
cables
• Cost effective
• Less cabling
• Fewer cables
at landfall
• Risk of
stranded assets
Case Study German Hubs
• Total Connected Capacity = 26.6GW
• Hubs
• Total Cost = € 18,650m (€15,280m excluding onshore
cables)
• €702k/MW (€575k/MW excluding onshore cables)
• Base Case Comparison
• Total Cost = € 28,069m (€20,116m excluding onshore
cables)
• €1057k/MW (€758k/MW excluding onshore cables)
Meshed OffshoreGrid
• Connect +/- 320kV and
+/-500kV hubs
• Defined by prototype
Grids
• Justified by further
need for arbitrage
between countries
• Capacity for
interconnection to be
established from
market model
iterations
Meshed OffshoreGrid
• Comparison:
• Look at Additional
Direct Links
• Higher capital cost
• No constraint
• Key – determine
balance of cost and
constraint from
modelling
EU OffshoreGrid Challenges
• Technical
• Onshore bottlenecks
• Technology e.g. different voltages used
• Market
• Planning uncertainties
• Risk & financing
• Variable generation vs long-term contract on cable
• Regulatory
• Different regulatory schemes
• Slow permitting procedures
• Unclear cost allocation & allowed profit margins
• Policy
• Renewable energy support schemes
• Political priorities
EU OffshoreGrid
• Stakeholder Meetings
• We want your input
• Held twice per year
• Next meeting:
• 22nd November 2010
• Berlin
• See details on www.offshoregrid.eu or me afterwards
Senergy Econnect
Thank You
Peter McGarley
[email protected]
+44 (0)191 238 7300