How can offshore experience improve your business case certainty?

Wind energy means the world to us. And we want it to mean the world to our customers, too, by maximising your profits and strengthening the certainty of your investment in wind power. That’s why, together with our partners, we always strive to deliver superior, cost-effective wind technologies, products and services. And it’s why we put so much emphasis on the reliability, consistency and predictability of our technology. These aren’t idle words. We have over 30 years’ experience in wind energy. During that time, we’ve delivered more than 55 GW of installed capacity on- and offshore, and we currently monitor over 24,000 wind turbines across the globe.

Let our experience guide you We have pioneered the offshore wind industry and installed nearly 30% of the world’s offshore wind turbines. Based on our consistently low Lost Production Factor of around 2.5% in offshore environments, you can count on our expertise in harnessing the raw power of offshore wind and transforming it into clean, reliable and predictable energy. Vestas Offshore has industry-leading experience in all aspects of offshore project management, from supply-only contracts to full-scale engineering, procurement and construction (EPC), and we provide service and maintenance solutions suited to meet the requirements of our customers. Safety is always first for Vestas, and we secure cost-effective transport and fast installation. Today, we are the only global energy company focused purely on wind. Our V112 turbine – now optimised to 3.3 MW – brings together our vast wealth of offshore knowledge, up-to-theminute turbine technology and in-depth expertise. By combining our tried and tested technology with our offshore experience, we are developing the game-changing V164-8.0 MW®. This is a purely offshore dedicated turbine and has the largest output in the industry – further evidence of our ceaseless focus on improving the cost of energy and business case certainty for our customers.

+590

Since 1990, Vestas has installed more than 590 turbines offshore providing a total capacity of 1,457 MW

How is the V164-8.0 MW® progressing?

Thorough analysis were conducted and evaluated on key components and design choices were made in relation to customer value drivers, technology and market assessments. The development of the V164-8.0 MW® prototype is progressing as planned and the scheduled installation of it is moved forward to the first quarter of 2014. Testing of key components has begun and the V164-8.0 MW® test bench is in place. Individual components, systems and integration are tested on functional performance, robustness, reliability & compliance. Testing of pitch system and blade bearing is taking place at our facility on the Isle of Wright, UK

Prototype assembly site in Lindø, DK established and assembly is progessing as planned.

Drive train arrangement assembled at the Test Centre in Aarhus, DK.

V164-8.0 MW®. A game changer in the industry.

Previous offshore turbines have been adapted from onshore equivalents. The V164-8.0 MW® is different. From the first nut to the last bolt, it has been specifically designed with offshore conditions in mind. The challenges associated with harvesting offshore wind power are clear – the large scale of projects, the distance from shore, an environment that is generally more wet, windy and hostile than onshore; not to mention the depths of installation and risks to safety inherent in an offshore environment. Overcoming these challenges require vast experience and a proven track record.

· The ratio between the 164 m rotor and the 8.0 MW generator is designed to suit the harsh conditions in the North Sea area. · The 164 m rotor maximises your energy yield from the wind resulting in greater annual energy production. · Fewer turbines are needed to produce the required amount of energy – reducing the cost of transportation, foundations, installation, cabling, service and maintenance. · The V164-8.0 MW® is designed to require as little maintenance as possible, and when servicing is required, it is safe, quick and cost efficient. · The turbine’s 25-year structural design life gives you a longer period to generate energy.

Technology geared towards profitability Turbines typically represent around one-third of the total capital expenditure for an offshore project. However logistical decisions, such as the weight and size of the turbine components, and service access, have a significant impact on other costs along the value chain, such as foundation costs, transport, construction and installation, service and maintenance. Maximising the cost efficiency of a wind power plant therefore means taking a project-level approach to these critical factors, rather than simply considering them at an individual turbine level. With the launch of the 164-8.0 MW®, we have introduced design choices based on this overall power plant perspective, helping to drive your profitability to new levels in offshore wind.

Design and testing principles Our +38 GW of monitored data has been used in the design of our verification tests. This vast amount of data allows us to replicate real life conditions when testing the components, systems and integrations of the V164-8.0 MW®, ensuring that each of these elements is thoroughly tested according to the specific conditions in which it will operate at site.

V112-3.3 MW™ . A proven and reliable turbine.

The V112-3.3 MW™ IEC IB is built on the proven technology of previous Vestas turbines, including the V112-3.0 MW™. It therefore provides higher reliability, reducing the risk of downtime and ensuring the stability of your investment. The power system is designed to deliver excellent grid support and is highly adaptable for future technical requirements. It also enables substations to be simpler and more cost-effective.

Rigorous quality assurance, right from the start

Installation and transportation costs

The Vestas Test Centre is unrivalled in the wind industry and has the unique ability to test complete nacelles using Highly Accelerated Life Testing (HALT) to ensure reliability. At the critical component level, potential failure modes and mechanisms are identified, and rigorous design verification plans and procedures for testing and verification are made. Specialised test rigs are used to ensure strength and robustness for the gearbox, generator, yaw and pitch system, lubrication system and accumulators.

When it comes to logistics, no two offshore projects are identical. The V112-3.3 MW™ IEC IB is designed for flexible and efficient transport and installation. In terms of weight, height and width, all its components comply with local and international limits for standard transportation, with no load weighing more than 70 tonnes.

The Vestas quality-control system ensures that each component is produced to validated design specifications, and performs at site. We also systematically monitor measurement trends that are critical to quality, to identify variation and make changes before any defects occur.

At the dockside, the V112-3.3 MW™ Offshore is highly adaptable to different installation vessels and procedures, helping to cut project times and costs. In addition, it incorporates a number of innovative design choices to strengthen your return on investment in offshore wind: · A full-scale converter which provides excellent grid support, reduced drive-train loads and optimum energy production over a greater range of wind speeds. · 54.65 m blades which produce more energy from the same available wind.

With improved reliability, serviceability and availability under offshore conditions, the V112-3.3 MW™ Offshore turbine is a lower risk choice for IEC class IB offshore sites. It offers a stronger return on your investment by maximising power production, while minimising downtime and maintenance costs.

Would you benefit from uninterrupted control of wind energy production?

Knowledge about wind project planning is key Getting your wind energy project up and operating as quickly as possible is fundamental to its long-term success. Vestas provides a number of value-adding solutions to help you achieve this: SiteHunt® One of the first steps is to identify the most suitable location for your wind power plant. And that’s where Vestas' SiteHunt® can help. Vestas' SiteHunt® analyses a broad range of wind and weather data to evaluate potential sites and identify the best one for your project. Electrical PreDesign By identifying grid codes early in the project phase and simulating extreme operating conditions, Electrical PreDesign allows customised collector network cabling, substation protection and reactive power compensation, which boost the cost efficiency of your business. VestasOnline® Business As part of our continual efforts to respond to the needs of our customer, we have taken the traditional SCADA system one step further by developing VestasOnline® Business. VestasOnline® Business is a flexible, reliable and powerful solution that can meet the demands of the most complex offshore installations. It ensures that you get the most from your wind power plant in five key areas:

1. Operational: Combining the VestasOnline® Business server and plant controller delivers local grid compliance, reliable plant control and specific turbine control. 2. Remote Monitoring & Surveillance: VestasOnline® Business can deliver data and visual displays globally suited to your surveillance and monitoring needs. 3. Diagnostics and Analysis: VestasOnline® Business can store and deliver all your data, enabling data mining for trending and predictive maintenance. 4. Flexibility: VestasOnline® Business combined with the VestasOnline® Plant Network, can host additional services and functionalities. 5. Integration: VestasOnline® Business has been designed for full industrial integration. WeatherForecast VestasOnline® WeatherForecast delivers timely, accurate weather forecasts tailored for the needs of the offshore wind industry. WeatherForecast can provide special reports such as ice risk, extreme weather, lightning, fast weather changes, wave and swell reports. PowerForecast VestasOnline PowerForecast delivers accurate single turbine forecast and the fastest Intraday Forecast in the industry at your site, by combining the analytical depth of Vestas’ repository of on-site wind data, the expertise and experience of our highly skilled specialists, and the processing power of one of the world’s largest commercial computers.

+24,000 The Vestas Performance and Diagnostics Centre monitors more than 24,000 turbines worldwide. We use this information to continually develop and improve our products and services.

Pre-assembly and Installation The Vestas pre-assembly approach is showing huge advantages in pre-test and pre-commission because this ensures that all components are working. Technicians can also prepare all electrical testing on shore saving costly service and maintance time at sea. Once the turbines are installed at sea, they will be up and running within a few hours without trouble-shooting. Vestas starts the energization of a power plant with the first installed turbine. With our project execution, you are able to start energy production quite early in the process, because the turbine is energised just four hours after it has been installed at sea. This was initially used at the Bligh Bank project where Vestas successfully energised 55 turbines in 7,5 full working days. Fast energisation paves the way for low cost of energy. This approach also increases the level of quality, which is an important factor in any construction process.

Active Output Management® Our Active Output Management® (AOM) concept offers long term financial and operational peace of mind for your business case. It provides detailed plans and bespoke, long term agreements for service and maintenance, online monitoring, optimisation and troubleshooting.

Surveillance, maintenance and service Operating a large wind power plant offshore calls for highly efficient management strategies to ensure uninterrupted power production and to control operational expenses. Predicting faults in advance is essential, helping to avoid costly emergency repairs and unscheduled interruptions to energy production. We offer 24/7 monitoring, performance reporting and predictive maintenance systems to improve turbine performance and availability. Our Condition Monitoring System (CMS) assesses the status of the turbines. It can detect faults at an early stage and monitor any damage. This information allows preventive maintenance to be carried out before the component fails, reducing repair costs and production loss. We’ll also work with you to devise an annual site-specific activity plan covering all the tasks and resources required. It shows the forecasted availability and lost production factor, using historic site specific weather data to calculate a monthly weather factor. To maximise time spent in the turbines and reduce transport time, an optimal logistical setup will be designed, based on years of experience with both transfer vessel and hotel vessel setup. The site will be run as a business unit with competent employees to undertake all roles at site.

Vestas Offshore Installations 10

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Since 1990, Vestas has installed 597 offshore wind turbines, providing a total capacity of 1457 MW. Having pioneered the offshore wind industry and installed nearly 30 pct. of the world’s offshore wind turbines, you can count on our expertise in harnessing the raw power of offshore wind and transforming it into clean, reliable and predictable energy.

6. BARROW 14. WindFloat floating foundation Country Portugal Owner Windplus Installation year 2011 Number of turbines 1 Turbine type V80-2.0 MW MW: 2

14

Country United Kingdom Owner Dong Energy Installation year 2006 Number of turbines 30 Turbine type V90-3.0MW MW: 90

10. ROBIN RIGG Country United Kingdom Owner E.ON UK Installation year 2009 Number of turbines 60 Turbine type V90-3.0MW MW: 180

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9

3

7

11

8

5 12

1. Tunø Knob

2. HORNS REV

Country Denmark Owner Dong Energy Installation year 1995 Number of turbines 10 Turbine type V39-500kW MW: 5

Country Denmark Owner Vattenfall & DONG Installation year 2002 Number of turbines 80 Turbine type V80-2.0MW MW: 160

3. SCROBY SANDS

4. NORTH HOYLE

5. KENTISH FLATS

Country United Kingdom Owner E.ON UK Installation year 2004 Number of turbines 30 Turbine type V80-2.0MW MW: 60

Country United kingdom Owner Npower Renewables Installation year 2004 Number of turbines 30 Turbine type V80-2.0MW MW: 60

Country United Kingdom Owner Vattenfall Installation year 2005 Number of turbines 30 Turbine type V90-3.0MW MW: 90

7. EGMOND AAN ZEE

8. OFFSHORE WINDPARK Q7

9. SPROGØ

Country Netherlands Owner WP Q7 Holding B.V. Installation year 2007 Number of turbines 60 Turbine type V80-2.0MW MW: 120

Country Denmark Owner Sund & Bælt Installation year 2009 Number of turbines 7 Turbine type V90-3.0MW MW: 21

11. BLIGH BANK

12. THANET

13. KÅREHAMN

Country Belgium Owner Belwind N.V. Installation year 2010 Number of turbines 55 Turbine type V90-3.0MW MW: 165

Country United Kingdom Owner Vattenfall Installation year 2010 Number of turbines 100 Turbine type V90-3.0MW MW: 300

Country Sweden Owner E.ON Installation year 2013 Number of turbines 16 Turbine type V112-3.0 MW MW: 48

Country Netherlands Owner Shell & NUON Installation year 2006 Number of turbines 36 Turbine type V90-3.0MW MW: 108

V164-8.0 MW® IEC S Facts & figures POWER REGULATION

Pitch regulated with variable speed

OPERATING DATA Rated power Cut-in wind speed Operational rotor speed Nominal rotor speed Operational temperature range Extreme temperature range Design parameters Wind class Annual avg. Wind speed Weibull shape parameter Weibull scale parameter Turbulence intensity 1 year mean wind speed V1 (10 min avg.) 50 year mean wind speed V50 (10 min avg.) Max inflow angle (vertical) Structural design lifetime ROTOR Rotor diameter Swept area

8,000 kW 4 m/s 4.8 - 12.1 rpm 10.5 rpm -10 - +25ºC -15 - +35ºC

IEC S 11 m/s k 2.2 12.4 m/s IEC B 40 m/s 50 m/s 0º 25 years

NACELLE DIMENSIONS (incl. hub) Height Length Width

7.5 m 24 m 7.5 m

Weights Nacelle, including hub Blade Tower

375 tonnes 35 tonnes site dependent

Turbine Options · Certified Condition Monitoring System · Aviation lights · Aviation markings on the blades · Heli hoist platform · Tower design optimized for all typical foundations types · Power back up Annual Energy Production

MWh

164 m 21,124 m²

48.000 44.000 40.000 36.000

ELECTRICAL Frequency Converter Generator Nominal voltage

32.000 28.000

50 Hz full scale permanent magnet 33 - 35 or 66 kV

24.000 20.000 16.000 12.000 8.000

■ V164-8.0 MW® IEC S

4.000

TOWER Type Hub height BLADE DIMENSIONS Length Max. chord

0

tubular steel tower site specific

80 m 5.4 m

8.0

9.0

10.0

11.0

Yearly average wind speed m/s

Assumptions One wind turbine, 100% availability, 0% losses, k factor =2.2, Standard air density = 1.225, wind speed at hub height

POWER CURVE FOR V164-8.0 MW® IEC S

8,500 8,000 7,500 7,000 6,500 6,000 5,500

Output (kW)

5,000 4,500 4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0 0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Wind speed (m/s)

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

V112-3.3 MW™ IEC IB Facts & figures POWER REGULATION

Pitch regulated with variable speed

OPERATING DATA Rated power 3,300 kW Cut-in wind speed 3 m/s Cut-out wind speed 25 m/s Re cut-in wind speed 23 m/s Wind class IEC IB Standard operating temperature range from -20°C to +45°C with de-rating above 30°C* *

HUB DIMENSIONS Max. transport height Max. transport width Max. transport length

3.74 m 3.75 m 5.42 m

BLADE DIMENSIONS Length Max. chord

54.65 m 4m

Max. weight per unit for transportation

70 metric tonnes

subject to different temperature options

SOUND POWER (Noise modes dependent on site and country) ROTOR Rotor diameter Swept area Air brake

ELECTRICAL Frequency Converter GEARBOX Type

112 m 9,852 m² full blade feathering with 3 pitch cylinders

50/60 Hz full scale

Turbine Options · Condition Monitoring System · Service personnel lift · Aviation lights · Aviation markings on the blades · Low temperature operation to - 30°C · Ice detection · Fire Suppression · Shadow detection · Increased Cut-In · Obstacle Collision Avoidance System (OCAS™) Annual Energy Production MWh

two planetary stages and one helical stage

18.000 16.000 14.000 12.000

TOWER Hub height

10.000

site specific

8.000 6.000 4.000

NACELLE DIMENSIONS Height for transport Height installed (incl. CoolerTop®) Length Width

■ V112-3.3 MW™ IEC IB

2.000

3.4 m

0 6.0

7.0

8.0

9.0

10.0

Yearly average wind speed m/s

6.8 m 12.8 m 4.0 m

Assumptions One wind turbine, 100% availability, 0% losses, k factor =2, Standard air density = 1.225, wind speed at hub height

POWER CURVE FOR V112-3.3 MW™ IEC IB Noise reduced sound power modes are available 3,600 3,300 3,000 2,700 2,400

Output (kW)

2,100 1,800 1,500 1,200 900 600 300 0 0

1

2

3

4

5

6

7

8

9

10

11

12

13

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Wind speed (m/s)

17

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22

23

24

25

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© 2013 Vestas Wind Systems A/S. All rights reserved. This document was created by Vestas Wind Systems A/S on behalf of the Vestas Group and contains copyrighted material, trademarks and other proprietary information. This document or parts thereof may not be reproduced, altered or copied in any form or by any means without the prior written permission of Vestas Wind Systems A/S. All specifications are for information only and are subject to change without notice. Vestas Wind Systems A/S does not make any representations or extend any warranties, expressed or implied, as to the adequacy or accuracy of this information. This document may exist in multiple language versions. In case of inconsistencies between language versions the English version shall prevail. Certain technical options, services and wind turbine models may not be available in all locations/countries.

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Vestas Wind Systems A/S Hedeager 44 . 8200 Aarhus N . Denmark Tel: +45 9730 0000 . Fax: +45 9730 0001 [email protected] . vestas.com