Launch of the Offshore Wind Infrastructure Application Lab - Sirris.

1. Offshore Wind Energy Research
OWI-Lab
Antwerp, 24th of January 2012
Norbert Giese, REpower Systems SE

2. Offshore market in 2011 in Europe
Total Installations 1991 -- 2011
Total Installations 1991 2011
- 1.371 WTG (only in 2011: 235)
- 3.813 MW (only in 2011: 866 MW)
- 53 projects (only in 2011: 9)
- 9 countries
- Leading Markets so far: UK, DEN, BEL, NED, GER
Source: EWEA

3. Offshore Wind Industry, last 20y + next 4y
Global Offshore Wind Industry in an important (or critical?) phase
Global Offshore Wind Industry in an important (or critical?) phase
1991 – 2011 3,8 GW grid connected
-Mainly Denmark and UK
-Mainly nearshore, shallow water, 2-3 MW turbines
2012 – 2015 roughly 12 GW in serious development/order
- 15 times more than before
- thereof:
1/3 in UK and 1/3 in Germany
(Final Investment decision in Germany 7 billion €)
1/3 in other European countries
and
2/3 with financing
1/3 so far without financing

4. Offshore? What kind of offshore?
Offshore II
Offshore Offshore II
Offshore II Offshore III
Offshore III
1.
1. Near to shore,
Near to shore, 1.
1. Far from shore,
Far from shore, 1.
1. Far from shore
Far from shore
< 20 km,
< 20 km, more than 20 km,
more than 20 km,
mainly 5 -- 15 km from
mainly 5 15 km from up to 150 km from the
up to 150 km from the
the nearest harbour
the nearest harbour nearest harbour
nearest harbour
2.
2. Shallow water,
Shallow water, 2.
2. Deep water,
Deep water, 2.
2. Very deep water
Very deep water
< 20 m,
< 20 m, up to 60 m water depth
up to 60 m water depth
mainly 5 -- 15 m water
mainly 5 15 m water
depth
depth 3.
3. Real offshore turbines
Real offshore turbines 3.
3. For the time being
For the time being
3.
3. Mainly onshore
Mainly onshore needed
needed floating foundations
floating foundations
turbines used with
turbines used with needed
needed
2 -- 3 MW
2 3 MW 4.
4. Strong or very strong
Strong or very strong 4.
4. Strong or very strong
Strong or very strong
4.
4. Strong wind regimes
Strong wind regimes wind regimes
wind regimes wind regimes
wind regimes

5. Capital Costs for Offshore Wind Projects
3500£ x 1,15€/£ = 4025€
3250£ x 1,15€/£ = 3738€
3000£ x 1,15€/£ = 3450€
2750£ x 1,15€/£ = 3163€
Project CAPEX
(£M / MW)
www.bwea.com, (2009)

6. Current Offshore-WEC - Installed
Others
Medium
Areva
speed
M5000
Vestas REpower
V90, V112 5M
High Siemens REpower
speed 2.3-93 6M
Siemens Bard
3.6-107/120 5.0
Direct Siemens,
6 MW
drive
3 4 5 6 7 8 9 10
MW

7. Future Offshore-WEC – Installed & Announced
Mitsubishi
Others 6-7 MW
Bard
6.5
Gamesa Gamesa
5 MW 6-7 MW
Medium
Areva Vestas
speed
M5000 7 MW
Vestas REpower
V90, V112 5M
High Siemens REpower
speed 2.3-93 6M
Siemens Bard
3.6-107/120 5.0
GE
Alstom,
Direct 4 MW
Nordex
AMSC
drive 6 MW
10 MW
3 4 5 6 7 8 9 10
MW

8. (Wind) Data Offshore
-Do we have enough wind data offshore?
-Do we understand the offshore wind farm models? Wakes?
-Do we have enough data about the offshore soil?

9. Maritime Installation Concept I
For the first time in the world a fully pre-
assembled wind turbine installed offshore
- Total lift of 655 tonnes

10. Maritime Installation Concept II

11. Offshore Substructure I
Improved frame design resulted in faster and
Improved frame design resulted in faster and Jacket installation started 23 July 2010
Jacket installation started 23 July 2010
more solid pre-piling operation
more solid pre-piling operation Finished on 17 October 2010
Finished on 17 October 2010
Piling started 1 May 2010
Piling started 1 May 2010 Transportation by barges, installation with
Transportation by barges, installation with
Final piles completed on 14 July 2010
Final piles completed on 14 July 2010 RAMBIZ
RAMBIZ
Average time 2.5 days/location
Average time 2.5 days/location 1 day // location
1 day location

12. Offshore Substructure II

13. Rotor Blades
Largest composite structures in the world
Largest composite structures in the world
Design
Based on SBA-Template (monthly)
Based on SBA-Template (monthly)
Material Changes compared to previous month
Changes compared to previous month
Production …
…

14. New O&M Concepts: Three self-operating Elements
Jack-up Crane Vessel:
Jack-up Crane Vessel:
For up to 90 people
For up to 90 people
Three-shift model
Three-shift model
Crane is designed to lift weights up to 500 tons
Crane is designed to lift weights up to 500 tons
Platform Supply Vessel:
Platform Supply Vessel:
For staff transports, supply of the crew, delivery
For staff transports, supply of the crew, delivery
of spares and tools (60 people // 300 tons cargo)
of spares and tools (60 people 300 tons cargo)
Active motion compensating gangway for
Active motion compensating gangway for
transfers up to 2.50 m waves
transfers up to 2.50 m waves
Workboat:
Workboat:
For minor repairs, inspections or preparatory
For minor repairs, inspections or preparatory
work
work
= Service and maintenance of up to 240
= Service and maintenance of up to 240
Start of operation: 2014 turbines // year
turbines year
Start of operation: 2014

15. 100 % reliability for all components
- Main components of course
- But also the small parts, causing offshore high O & M costs
- Big difference to the Onshore Wind Industry

16. Grid Connection and Storage of Energy
BEATRICE PROJECT
● Talisman Energy & SSE
- 2x 5M
- Installed 2006 & 2007
● Water depth: 45 m
● Distance to shore: 25 km

17. Offshore Revolution: New wind farm design
Based on Onshore Wind each wind turbine is a full power station
on it´s own
vs.
An Offshore Wind power station with “stupid” wind turbines

18. © REpower Systems SE
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