V164-7.0 MW –Presentation - Global Insight Conferences · Vestas disclaims, to the extent permitted by law, all warranties, representations or endorsements, express or implied,

V164-7.0 MW – Presentation

Introducing the V164-7.0 MW

25.05.2011, JLL, ABAAN, V164-7.0 MW team and GMCI

V164-7.0 MW – Presentation2

Agenda

1. Introducing the V164-7.0 MW

2. Lowering your cost of energy offshore

3. The right size

4. Design choices

5. Technical specifications

V164-7.0 MW Technical Presantation3

Disclaimer:

This document belongs to Vestas Wind Systems A/S. While all information contained in this

document has been gathered with all due care, Vestas does not warrant or represent that the

information is free from errors or omission, or that it is exhaustive.

Vestas disclaims, to the extent permitted by law, all warranties, representations or endorsements,

express or implied, with regard to the information available in or through the document, including all

implied warranties of merchantability, fitness for a particular purpose, or non-infringement. Vestas

does not warrant or accept any liability in relation to the quality, operability or accuracy of the

information in this Document.

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reason of negligence) to that third party for any loss, damage, cost or expense whether direct,

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V164-7.0 MW Presentation4

1Introducing theV164-7.0 MW


2011-2013:

Design & Test & customer involvement

Q4 2012- Q1 2014:

Construction of first prototype

& ’pedigree’ turbines installed

Q1 2015:

Serial production may begin

2011 2012 2013 2014 2015

March 30, 2011:

Release for

marketing &

dimensions

Forecasted timeline from today to ‘installed at sea’ in 2015Provided the right commitment, involvement & investment

Q3 2014-:

Production ramp-up


2Lowering your cost of energy

offshore


Key objectives

� High energy capture

� High availability at high wind

� High reliability

� Low maintenance

� High serviceability

High yield

Low OPEX

&

High business case certainty

Cost of Energy embraces all aspects in wind power performance

Annualized CAPEX + Annualized OPEX

Annual Energy Production

CoE =

Low Cost of Energy and High Business Case Certainty


Annualized CAPEX and OPEX per MW installed

Offshore Wind Park Assumptions

• “All inclusive” engineer-procure-construct

(EPC) cost .

• The cost structure for actual offshore wind

projects is highly dependent on site specific

conditions.

• Park size: constrained by grid capacity.

Key assumptions: Offshore: 1) Development in supply chain leading to changes in cost base is not considered. 2) Distance to shore 25 km. 3)

No onshore grid extension cost included. 4) Based on V90-3.0 MW turbines. 5) Average annual wind speed ≈ 9,5 m/s.

Taking a customer and power plant perspectiveK

Setting the Offshore value chain in focus

• Foundations

• Wind park design

• Construction and installation

• Operation and service

To reduce cost of energy

Others

Foundation

Electrical Infrastructure

WTG & Installation

OPEX

Offshore

V164-7.0 MW Presentation 9

4The

Right size


Key Market Conditions Qualified

Annual average wind speed and water depth has impact on optimal ration between rotor

diameter and rated power.

12

24

53

83

0

20

40

60

9.6-10.09.1-9.58.5-9.0

% of Total

10.6-11.010.1-10.5

Annual mean wind speed at 100m height (m/s)

4,0

13,0

19,016,0

22,021,0

5,0

0

5

10

15

20

25

% of Total

15-20 < 45-50< 40-45< 35-40< 30-35< 25-30< 20-25

Market outlook Includes:

UK round 2,5 and 3

German North Sea

Scotland

Dutch North Sea

Danish North Sea

Belgian North Sea

Baltic sea (Germany, Denmark

and Sweden)

Water depth mean sea level (m)


An Advanced Cost of Energy-model Adopting Customer’s Perspective

• Rotor diameter• Rotor profile• Tip speed• Rated power• …• …• …

Input parameters

Aero – Power curve

VTS – Baseline load set

Fthrust

..

K

..

..

..

..

...

Main component and BOP load to cost

models

Output:

• Cost of Energy

• IRR

• BCC

• Etc.Annual Energy Production

Reference site information

• Average wind speed

• Water depth

• MW installed

• D

+

Wind Park Economic model

Foundation cost model

Array cable cost model


7 MW - MP

6 MW - MP

5 MW - MP

135 140 145 150 155 160 165 170

CoE [EUR/MWh]

Rotor diameter [m]

Assumptions

Water depth: 35 m

Wind speed: 10 m/s

How to find the right generator to rotor ratio

With monopiles no CoE reduction going to larger turbines

Not

Zero


Foundation

Cost

WTG Size

EPC cost for offshore foundations

• For gravity based foundations

and different types of jacket

foundations there is very little

sensitivity to the weight of the

turbine. It is mainly the rotor

diameter which drives the cost.

• Taking a power plant

perspective in designing the

turbine reduces the cost of

energy and in this case

through reduced foundation

cost.

Conclusion

Taking a power plant perspective choice of size and rating on the turbine is closely related

to foundation costs.

By choosing jackets as foundation the cost of energy is lowered going to a V164-7.0 MW


7 MW - MP

6 MW - MP

5 MW - MP

5 MW - J

6 MW - J

7 MW - J

135 140 145 150 155 160 165 170

CoE [EUR/MWh]

Rotor diameter [m]

Assumptions

Water depth: 35 m

Wind speed: 10 m/s

How to find the right generator to rotor ratio

With monopiles no CoE reduction going to larger turbines

Not

Zero


The right size

• High rated power � Lower CAPEX and OPEX

• Larger rotor diameter � High Energy Capture

V164-7.0 MW

• Rotor diameter: 164m

Airbus A380

• Wingspan: 80m

• Length: 73m

London Eye

• Diameter : 135m

164m

Reducing cost of energy pushes up the turbine size


5Design

choices


Making the right design choicesUsing a 360 degree development process and competing work streams

To secure the best possible design choices and thereby the right solution for our customer we

have worked with competing work streams on key designs elements like the drive train.


How big a deal is OPEX..?Let's take a look at the CoE breakdown..!

Development & Engineering

Electrical infrastructure

Foundation

WTG, Tower

incl. Installation

BoP O&M, Insurance, etc

Running O&M

Main component replacements

V164-7.0 MWV90-3.0 MW

Indicative CoE Breakdown [EUR/MWh]

Main components:

• Blades

• Blade bearings

• Main bearing

• Drive train components

• Generator

• Transformer

Same main component

replacement rate for

V90-3.0 MW and V164-

7.0 MW MW


Hub Main shaft Main bearing housing Bed frame

All wind loads transferred to tower top

Only

torque

How to de-risk the drivetrain K?Separate wind loads and torque will minimize undesired loads in the drivetrain


Medium Speed Drive Offers Highest Return on InvestmentBoth CAPEX, OPEX and supply chain risk are considered in the benchmark

�Medium speed offers the highest

return on investment when

replacement rates for both concepts

is factored in.

�Direct drive IRR has high sensitivity

to replacement rates

�Number of terminations, amount

insulation and air-gap control will

lower the direct drive generator

reliability.

� The medium speed drive train is less

sensitive to price and availability of

strategic raw materialsDrive train replacement rate

Medium speed offers

higher return on

investmentCustomer

IRR %

Direct Drive

Medium Speed


Two strong arguments: Price and availability?

Supply Chain Risk for Direct Drive?

V164-7.0 MW medium speed magnet weight ≈ 500 kg

V164-7.0 MW direct drive magnet weight ≈ 5000 kg


6Layout& Technical specification


Blade

Hub

Pitch system

Heli hoist

platform

Control panels

Cooling coils

Drive train

Support structure

Main frame

Nacelle

Moving key parts from the nacelle to the tower optimizes serviceability and replacement

is made easy


Tower

Transition piece

Converter panels

Transformer

Switch gear

Working deck

Jacket foundation

Tower

Moving key parts from the nacelle to the tower saves weight in top head mass, optimizes

serviceability and replacement is made easy.


V164-7.0 MW Main Specification

Main dimensions

Blade length

Max chord (preliminary)

Nacelle (incl. hub and coolers)

Height

Length

Width

80 m

5,42 m

7,5 m

24 m

12 m

Weights (± 10%)

Nacelle with hub

Blade (each)

Tower (HH 107m)

390 ton

35 ton

Site dependent

Rotor

Rotor diameter

Swept area

164 m

21.124 m2


V164-7.0 MW Main Specification

Operating data

Rated power

Cut-in wind speed

Operational rotor speed

Nominal rotor speed

Operational temperature range

De-rated temperature range

De-rated temperature range

7,0 MW

4 m/s

4,6 – 12,1 rpm

10,5 rpm

-10 to +25 ºC

-15 to -10 ºC

+25 to +35 ºC

Design parameters

Wind Class - IEC

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

IEC S

11 m/s

k 2.2

12.4 m/s

IEC B

40 m/s

50 m/s

0º

25 years


Foundation

Suitable solution needed for water depth range from 20 to 50 m

Water depth [m]

Cum

. P

robabili

ty

[%]

Evaluating the right concept for foundation

Market screening of various

concepts concludes three

mature concepts

Copyright Notice© 2011 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 product is in its current form a 50 Hz version and therefore not available for 60 Hz markets. This product will not be released for sale in all locations/countries. Vestas Wind Systems A/S shall not have any responsibility or liability whatsoever for the results of use of the documents by you.

Thank you for your attention

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V164-7.0 MW –Presentation - Global Insight Conferences · Vestas disclaims, to the extent permitted by law, all warranties, representations or endorsements, express or implied,