Wind Farm Design and EngineeringMark LegertonHead of Engineering and Supply ChainApril 2010

2

Design objectives

• Wind farms that are safe to construct and operate.

• Sympathetic to stakeholder concerns.

• Minimise cost of energy.

3

Why cost of energy is important

• Government support

• Consumer and public support

• Investment

• Supply chain

4

The Dogger Bank challenge

Dogger Bank - Project economics

• High wind speeds

• Shallow seas

• Economies of scale

• Standardisation of design

• Serial production and installation

• Space for design optimisation

Design factors

• Turbine spacing

• Array spacing

• Array shape

• Distance to shore

• Water depth

7

Water depth

8

Dogger Bank – area available

9

Array shape options

Fill development area

Arrange in discrete arrays

Doughnut

Multiple doughnuts

Doughnut of doughnuts

But, design tools not proven

16

Commercial wind turbine growth

Source GLGH

17

Foundation options

Source GLGH

18

O&M options

19

Need for flexibility in final design

Zone award

Q1 10 Q4 12 Q4 13

Consent application

Consent award

1st investment decision

2014

Construction

2015 2023

O&M

to 2040/65

But according to agreed guidelines and rules

Thank you