Wave Dragon Project In Wales Power Gen 2006d

Wave Dragon ApS and Ltd.

Wave Dragon
Worlds Largest Wave Energy Project 2007 in Wales
Lars Christensen Jens Peter Kofoed James Tedd
Wave Dragon ApS Hydraulics and Coastal Engineering SPOK ApS
Copenhagen, DK Aalborg University, DK Copenhagen, DK

Erik Friis-Madsen
Wave Dragon ApS
Copenhagen, DK

POWER-GEN 2006
Low to zero CO2 technologies &
emission reduction
Thursday 1st June 2006
at
Koelnmesse, Cologne, Germany

Worlds Largest Wave Energy
Project 2007 in Wales POWER-GEN, 1st June 2006, Cologne, Germany


Contents
• Wave energy potential • The WD Demonstrator
• Wave energy technology • Location
• Wave Dragon prototype • Design
• The partners and funding



Technical Potential of Renewable Energy (ExaJoules)

Bio- Hydro Solar Wind Geo- Ocean Total
mass thermal

World 283 50 1,570 580 1,401 730 4,614

Current use 50 10 0.2 0.2 2 0 62.4

Total primary energy 420
supply

Source: Federal Ministry for Economic Cooperation and Development and Ministry for the Environment,
Nature Conservation and Nuclear Safety: Conference Issue Paper, Renewables 2004 – International
Conference for Renewables Energies, Bonn 2004, p.27.



Regions where wave energy is most feasible

1 TW 60o

30o

0o

30o

60o

The western wind belt with the wave energy density in kW/m



Wave Climate

High wave power
intensity at Atlantic
Coast.



Power from wind, waves and tidal stream



Fixed wave energy devices


Floating wave energy devices


Power plant size
N o . o f u n it s t o f o r m a 1 0 0 M W p o w e r p la n t

1000 1000
950
900
850
800
750
700
667
650
600
550
500
450
400 400
350
300
250 250
200 200
150 133
100 100
50 50 67 67
50
14
0

Wave Dragon



Big is beautiful



Wave Dragon principle
The Wave Dragon is a slack-moored wave energy converter that can be
deployed alone or in parks wherever a sufficient wave climate and a water
depth of more than 20 m is found.

Climate Power production
24 kW/m 12 GWh/y/unit
Wave reflector

Waves overtopping the
doubly curved ramp
Reservoir

Turbine outlet



Nissum Bredning, Denmark
The wave climate is scale 1:4.5 of the North Sea

2



Wave Dragon prototype • Measuring equipment
RTD activities – Pressure transducers
– Accelerometers
• Two different test sites – Force transducers
– Close to Danish Wave Power – Movement transducers
Association's test site – Strain gauges
– Further south-east where more
wave energy is available • Online monitoring
– Performance, WebCams, weather
• WD prototype fully equipped
– Turbines 1+6+3
– Grid connected generators
– Floating level control system



First offshore wave energy converter
producing power to the grid, May ’03



Cylinder gate turbines running



Remote control



Turbine operation and power production

Example:
• Four power producing
turbines in continous
operation
• Three dummy turbines
handles overtopping
variation



Wave Dragon prototype experience

☺ 15,600 hours operational track record
☺ Wave energy absorption performance verified
☺ It works! Power delivered to the grid
☺ Offshore wave energy is a reality



Wave Dragon objectives
To develop Wave Dragon to a power plant unit of
4 to 11 MW with a production price of 0.04 €/kWh

€/kWh Wind

0,35 Wave

0,30

0,25

0,20

0,15

0,10

0,05

0,00
Target year 2016
85

87

89

91

93

95

97

99

01

03

05
19

19

19

19

19

19

19

19

20

20

20
Source:
EU Wave Net 2002 and Risø



How visible is a WD power plant?

Seen from 100 feet above sea level and at a distance of 5km
Under the horizon at a distance of 10km



Wave Dragon partners Wave Dragon MW EC Project
• Wave Dragon ApS &Ltd. (DK & UK)
• Aalborg University
Hydraulics & Coastal Engineering Laboratory (DK)
• Balslev A/S, Consulting Engineers
Design of electrical and automation systems (DK)
• Niras as, Consulting Engineers
Wave forecasting models (DK)
• Technical University Munich, Hydro turbine
development and tests, regulation strategy(D)
• Kössler Ges.m.b.H.
Design and manufacturing of hydro turbines (A)
• ESB International Ltd.
Grid connection (IE)
• University of Wales Swansea
Environmental impact, power electronics (UK)
• Warsaw University of Technology
Generator technology, power electronics (PL)
• Dr. Tech. Olav Olsen
Design and specification of main structural parts (N)



Wave Dragon Welsh project
other team members/subcontractors:

Löwenmark FRI, Inventor, Consulting Eng. (DK)
SPOK ApS, Project Management Cons. (DK)
Nöhrlind Ltd, Research & Business strategy
development (UK)
PMMS, Consent and CDM (UK)
(CMACS, Osiris, Wessex, Anatec, Enviros)
Wave Energy Centre, Wavetrain (PT)



Investments until year 2004: C o n t r ib u t i o n 1000 €
L ö w e n m a rk F .R .I 1 .5 0 3
SPO K ApS 891
V e te ra n K ra ft A B 366
The RTD has been supported by: K ö s s le r G e s .m . b . h . 101
B a ls le v A / S 217
• EU Energie FP5 B e lt E le c t r i c A p S 70
W i lfr i e d K n a p p 48

• Danish Energy Authority N ö h r lin d L t d
M T H ø jg a a rd A /S
68
169
A rm s tro n g L td 136
• Elkraft System (PSO) N IR A S A S 35
E S B I E n g in e e rin g L td 88
• Obel Family Foundation EU 2 .0 7 8
D a n is h n a ti o n a l f u n d in g 1 .9 2 9
• and the partners U n iv e r s it y f u n d e d 192
T o ta l 7 .8 9 2

Investments in 2005 by partners and Danish national funding: € 1 million

Total cost Welsh demonstrator: € 21 million of which:
EC grant, 6th Framework programme: € 2.3 million
Welsh Assembly Objective One grant: € 7.4 million



Site selection Wales
Grid connection Traffic

Wave climate

Pow er

100%
90%
80%
70%
60%
7
50%
40% 5,5
30% Waveheight, significant,
4
20% meters
10% 2,5
0%
5 6 7 8 1
9 10 11 12
13 14 15
16 17
Wave peak period in seconds



Site selection Wales



Location
The demonstrator device will be located
2 - 3 miles off the South West Wales
coast, off St Ann’s Head.

The site has been selected to be:
• Exposed to the predominant wind/wave
direction
• Relatively close to land, for economic
Due to these practical reasons, the
and operational purposes
demonstration site is located within the
Pembrokeshire Marine SAC (Special Area
• Away from commercial shipping of Conservation), and a full Environmental
interests Impact Assessment is being conducted.
• Close to a major port, Milford Haven
The area marked with the black square on
the map shows the area being investigated
• Close to potential grid connection - the area occupied by the Wave Dragon
locations (Dale, Marloes) device is much smaller.



WD



Construction
The Wave Dragon unit will be constructed at a port, close to the deployment
site. The manufacturing of the reinforced concrete structure is straight
forward using standard methods from the civil engineering field.

Distance between tips of arms 300m
Arm length 145m
Length (tip of arm to rear of 170m
central housing)
Maximum height above sea level 6-3m

Draught 11-14m



Mooring
A catenary mooring solution is considered the only feasible option
because of its ability to absorb large peak loads.
Design and construction of large offshore foundations, sub sea
installations and handling of heavy components and equipment is a well
established discipline within the offshore wind, oil and gas industries.



Animation:
LOKE film



Wave Dragon - Perspectives

• A power plant size solution for exploiting offshore wave energy
– Made up of proven technologies
– Unique design and construction – Patented
• Single unit size from 4 MW to 11 MW with power generating capacity
of up to 30 GWh/year
• Power plant capacity 4 MW – 1,100 MW (100 units example)
• Long term installation cost < € 1,500 per kW by 2011
• Long term power generating cost of 3,5 – 4,3 €c/kWh by 2011



www.wavedragon.net

Wales project:
www.wavedragon.co.uk



Thank you for your attention!


Wave Dragon Project In Wales Power Gen 2006d

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