offshore wind energy in our power systems conclusions and recommendations from the european...
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OFFSHORE WIND ENERGY IN OUR POWER SYSTEMS
CONCLUSIONS AND RECOMMENDATIONS FROM THE EUROPEAN CONCERTED ACTION FOROFFSHORE WIND ENERGY DEPLOYMENT
Luc Dewilde, Achim Woyte
3E sa, Brussels, Belgiumhttp://www.3E.be/
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OUTLINE - GRID INTEGRATION - COD
Concerted Action for Offshore Wind Energy Deployment (COD) eight sea-bordering EU member states
not explicitly technical barriers:regulatory barriers, environment, grids
Grid integration issues 2 cases
country groupings
trans-European power exchange
Conclusions grids and markets
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Price Demand Supply
MATCHED
GRID INTEGRATION: APPROACH
Review of national grid studies
Collection of key data
Significant items
plans & prospects
power system & bottlenecks
grid codes & balancing arrangements
offshore cabling
market aspects
Limited comparability
Country groupings
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First projects: East coast
1370 MW (2010), later up to 3000 MW
min. load (RoI) 1500 MW
Grid bottlenecks
locally
can delay the process
Grid control issues
frequency control
balancing: TSO
Forecasting required by Grid Code
CASE - BRITISH ISLES - IRELAND
Arklow
Finglas
GreatIsland
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CASE - UCTE - BELGIUM
Exclusive Economic Zone: yellow
exclusive area selected by the Belgian authorities 270 km² 2.7 GW
first projectThorntonbank218 MW in 3 phases
expected2000 MW in 2020
270 km² 2.7 GW
Thorntonbank
2 substations: 150 kV Slijkens Zeebrugge
Courtesy of K. Purchala
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COUNTRY GROUPINGS BY SYNCHRONOUS ZONES
Different accents
Central/Western Europe
British Isles
Scandinavia
Common issues
grid reinforcement
grid code requirements
offshore cables
grid access, pricing & balancing
Trans European power exchange
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SPATIAL DECORRELATION
… becomes most interesting over large distances
Meteo systems
dimensions of 1000 kilometres
Regional decorrelation
existing but limited
Transcontinental decorrelation
requires infrastructures
Courtesy of Gregor Giebel
Europe
L
HCourtesy of Andrew Garrad
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TRANSMISSION GRIDS
Trans European Networks (TEN-E)
priority axes: wind is regional rationale
should become transcontinental
Interconnector capacity needs to be allocatable to wind power
International markets for balancing power
… should link control zones over large distances
Priority axes TEN-E action (CEC, DG TREN)
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MARKETS
today: coupled via capacity markets
long-term to day-ahead, no intra-day allocation
future: markets should be coupled
as close as possible to real time
… are required for transcontinental balancing
Courte
sy o
f L. M
eeus
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CONCLUSIONS & RECOMMENDATIONS I
Country groupings
Synchronous zones, TEN-E priority axes, geography
Common issues with different accents
Grid reinforcement
impasse between TSOs and developers
back up and share investment risk by governments
Grid codes
harmonize control capabilities
TSO-specific set points
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CONCLUSIONS & RECOMMENDATIONS II
Common offshore cables
facilitate common infrastructures
possible kick-off for offshore grids
Access, pricing and balancing
enable markets for wind energy
support short-term forecasting
Trans European Power Exchange
create interconnector capacity
allocate it close to real time
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FURTHER INFORMATION
Grid issues:
3E sa, Brussels, Belgiumhttp://www.3E.be/
COD co-ordination and reports:
SenterNovem, The Netherlands http://www.offshorewindenergy.org/COD/
Acknowledgements:
COD members for data collection and review