Upload
rose-tyler
View
216
Download
0
Embed Size (px)
Citation preview
www.OffshoreGrid.eu
IEE OffshoreGrid
Regulatory Framework for Offshore Grids and Power Markets in Europe: Techno-economic Assessment of
Different Design Options
www.OffshoreGrid.eu
IEE OffshoreGrid
PROJECT DNA
– Techno-economic study– 8 partners, coordination by 3E, consultancy &
applied research institutes– Total cost: 1.4 million euros– Funding: 75% from Intelligent Energy Europe
(Contract IEE/08/780/SI2.528573)– Duration: May 2009 to October 2011
2
www.OffshoreGrid.eu
www.OffshoreGrid.eu
Consortium MembersCONSULTANTS
– 3E: strategy, technical 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 review3
www.OffshoreGrid.eu
Objectives
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
4
www.OffshoreGrid.eu
Approach
PREPARATION
– Scenarios 2020 / 2030 – Offshore and onshore wind,
assumptions for onshore reinforcements– Energy economics, regulatory
framework
MODELLING
– Cost optimisation of infrastructure– European power market model
5
www.OffshoreGrid.eu
Work Plan
6
WP2: Regional electricity markets in Northern Europe & in the Mediterranean area: status and development
WP3: Offshore Wind Power Scenarios
WP7: Transfer to the Mediterranean area: electricity markets, wind energy development and inter-continental interconnection
WP1: Management
WP5: Offshore grid design optimization and investment calculation
WP6: Offshore electricity market modelling
WP8: Discussion and policy recommendations
WP10: IEE public relations
WP9: Com-munication and publication
modelling Transfer und recommendations publications
WP4: Scenario definition and version control of the techno-economic work.
www.OffshoreGrid.eu
Timing & High-level Milestones
May ‘09 Jan ‘10 Jul ‘10 Jan ‘11 Jul ‘11 Oct ‘11
Projec
t sta
rt
Wind
farm
s, en
ergy
eco
nom
ics,
1st S
take
holde
r wor
ksho
p
Prepa
ratio
n ph
ase
close
d
Techn
o-ec
onom
ic m
odell
ing cl
osed
2nd
Stake
holde
r Wor
ksho
p
Draft
resu
lts d
iscus
sed
with E
C DG T
REN
Trans
fer t
o M
edite
rrane
an
regio
nFIn
al
resu
lts
Sep ‘09
www.OffshoreGrid.eu
Tee-in solutions – Conclusions
• Benefit depends on reduced infrastr. costs vs introduced trade constraints
• More beneficial when:– Low price differences– WF far from shore and close to interconnector– Simple tee-joint is used instead of more expensive platform solution– Wind farm capacity is low compared to interconnector capacity OR double
its size– Country where wind farm is located usually has lowest prices– Offshore wind generation is inversely correlated with price difference
• Split wind farm connection is special case which proves beneficial for large farms far from shore
• If rating of each side not equal, connection capacity to country with highest price should be largest
www.OffshoreGrid.eu
Overall grid design – Conclusions
• Two offshore grid design methodologies were assessed
– Direct design: builds on direct interconnectors, then integrated solutions and meshed links
– Split design: builds interconnections by splitting wind farms, then integrated solutions and meshed links
• Where beneficial, split connections have proven to be more cost-effective then direct interconnections
• An offshore grid will be built step by step. Every step influences both the future and the existing projects To identify an efficient design is a highly complex problem
• The two designs presented in this report bring useful understanding and conclusions that allow the grid development to be brought forward with modular steps in the best possible way.
www.OffshoreGrid.eu
Recommendations – Overall grid design• Any interconnector has negative impact on existing interconnectors.
Therefore business case should be very strong As integrated solutions are less dependent on trade, these can be beneficial with lower price differences and should be considered.
• Merchant interconnectors concept can be questioned Encourages to obstruct new interconnections. Conflict of interest have to be avoided.
• Regulatory frameworks & support schemes pose problem How to make these compatible in the sense that these support integrated solutions should be assessed.
• Apart from the techno-economic benefits laid-out in the offshore grid report, integrated solutions produce other benefits Lower environmental impact, improved redundancy...
www.OffshoreGrid.eu
Visit the website www.offshoregrid.eu
• Final report pdf version
• Furthermore:
– Executive summary
– Annexes
– Maps
– Guidelines from Case-
independent-model
– Other WP Deliverables