The WindFloat Project · Offshore Installation Offshore Commissioning Testing and Monitoring Sep, 09 Jan, 10 Sep, 10 Sep, 11 May, 11 … Nov, 11 Dez, 11 Ago, 13 Sep, 11 Sep, 11 Project

The WindFloat Project

WindFloat 2 MW Floating Offshore Wind

Trondheim, 24th of January, 2013

The WindFloat Project 2

Why Floating Offshore Wind?

Why Offshore Wind?• Higher wind resource and less turbulence• Large ocean areas available• Best onshore wind locations are becoming scarce• Offshore wind, including deep offshore, has the

capacity to deliver large amount of energy

Why Floating Offshore Wind?• Limited locations with shallow waters (mostly in the

North Sea)• Most of the offshore wind resource is in deep waters• Unlimited installation sites available• Less restrictions for offshore deployments and

reduced visual impacts• Enormous potential around the world: PT, Spain, UK,

France, Norway, Italy, the Americas, Asia …


The main characteristics of the WindFloat leads to High Stability even in rough seasThe WindFloat Technology

Turbine Agnostic• Conventional turbine (3‐blade, upwind)• Changes required in control system of the turbine

High Stability Performance• Static Stability ‐Water Ballast• Dynamic Stability ‐ Heave Plates and active ballast system

‐ Move platform natural response above the wave excitation (entrained water)

‐ Viscous damping reduces platform motions• Efficiency – Closed‐loop Active Ballast System

Depth Flexibility (>40m)

Assembly & Installation• Port assembly – Reduced risk and cost• No specialized vessels required, conventional tugs• Industry standard mooring equipment


The WindFloat…

… requires NO PILLING

…is structurally decoupled from seadbed

…is independent from depth

…is assembled and commissioned quayside

…does NOT require high lift capacity vessels

Due to the features of the WindFloat, the risk and cost of offshore works is significantly reducedThe WindFloat Technology

Reduced Risk and Cost


WindFloat technology development – derived from an O&G concept and is now being tested full scale at seaThe WindFloat Technology

May 2009

July 2009

Wave tank testing of 1:67thscale WindFloat model at University of California, Berkeley tow tank

EDP initiates the WindFloat Project with the demonstration of a WindFloat unit with 2MW wind turbine generator grid connected to be installed in Aguçadoura

Septem

ber 2

008 Wave tank

testing of 1:96th scale WindFloat model at University of California, Berkeley tow tank

Janu

ary 20

09

EDP and Principle Power sign MOA for phased development of WindFloat technology and commercial deployment of a wind farm up to 150MW

MI&T performs Minifloat proof of conceptmodel tests

Janu

ary 2003

June

200

3

MI&T files Minifloat patent 1

Wave tank testing of Minifloat I & II concept

Janu

ary 20

04

June

200

4

Wave tank testing of 1:96th scale Minifloat IV concept at University of California, Berkeley tow tank

Minifloat patent 1 issued US7086809, Minifloat patent 2 filed

August 200

6

August 200

6

Wave tank testing of 1:80th scale Minifloat III concept at Oceanic

Minifloat patent 2 isssued US7281881

March 200

7

June

2008

Principle Power exclusively licenses WindFloat intellectual property from MI&T

April 200

9 Principle Power purchases outright all intellectual property for WindFloat from MI&T

Decembe

r 2011

First electron at Aguçadoura


Phase 1 – DemonstrationCapacity: 2MW WindFloat prototype

Location: Aguçadoura, grid connected

~6 km of coast, 40 ‐ 50 m water depth

Turbine: 2MW offshore wind turbine

Test period: 24+ months

Phase 2 ‐ Pre‐commercialCapacity: ~27MW (~5 WindFloat units)

Location: Portuguese Pilot Zone

Turbine: Likely Vestas and other, Multi MW

Phase 3 ‐ CommercialCapacity: 150MW, gradual build‐out

Location: TBD

Turbine: TBD

6

The WindFloat project is structured to follow a phased / risk mitigation approachThe WindFloat Project


The Project is promoted by…

…in a joint venture…

…and counts with the support of…

The WindFloat project was structured as a Joint Venture, WindPlusThe WindFloat Project

WindPlus


The project followed a risk mitigation approach but…

…the challenges were enormous…

…project being done for the first time

…Lack of offshore know‐how in Portugal

…different cultures involved(US, Denmark, Portugal, France)

…Collaboration between two different industries that have never worked together (Oil & Gas and Wind Industry)

… Standards & Rules for design exist but need to adapted

8

The development of the WindFloat project carried enormous challenges due to the lack of know‐how in PortugalThe WindFloat Project


The project followed the typical stages of an engineering projectThe WindFloat Project

Pre‐FEED

Scope Definition

Design Basis

Engineering

Risk Mitigation Activities

• Concept• Location• Schedule• Cost

• Design Criteria• Site conditions• Preliminary GA

• Stability• Hydrodinamic Performance

• Structural Design

Scope and Prel. Eng. Defined?

FEED

Site detailed charact.

Detailed Eng.

Drawings & Philosophy

• Geotechnical survey

• Bathymetry• Netocean cond

• Damage cases• Load calculation• Strength & Fatigue• Critical Design

• Equip. and instrumentation list

• P&IDs

FEEDDefined?

Project Execution

Detailed Drawings & Construction Drawings

Equipment Procurement

Fabrication & Installation

Project Planning


Effective Risk Management must be embed into the project since the very early beginningThe WindFloat Project

Risk Management methodologies implemented through out the project were key for the success of the project

• HAZID – Hazard Identification Study• Conducted at an early stage of the project• Focus in the Project Execution stage• Provided inputs to the FEED stage

• HAZOP – Hazard and Operability Study• Several workshops conducted during FEED• Participants were the teams involved in the

activities and engineering team• Provides input to the FEED stage

• HIRA – Hazard Identification and Risk Assessment• Workshop conducted prior to execution of

the activities• Plan and procedures of each activities

already defined• Outcome provides inputs to reduce the risk

while executing the activities


The project was implemented under a tight scheduledThe WindFloat Project

Task TimelineProject StartPre-FEED

PDR

FEED

Turbine Selection

Final Investment Decision

Project ExecutionDetail Design

Fabrication

Offshore Installation

Offshore Commissioning

Testing and Monitoring

Sep, 09

Jan, 10

Sep, 10

Sep, 11 May, 11

…

Nov, 11

Dez, 11

Ago, 13

Sep, 11

Sep, 11

Project was completed in less than 2,5 yearsFabrication completed in less than 9 months

Significant space to improve project implementation schedule!


Workshop Fabrication of main components

A. Silva Matos was the responsabilbe for the

fabrication of the WindFloat


Pre-assembly of the columns

outside the Dry-dock in Setúbal


Columns moved to Dry-dock


Dry-dock assembly


Mooring Pre-Lay in parallel

with the fabrication


Turbine Installation in the Dry Dock using the

shipyard’s gantry crane


Tow from Setúbal to Aguçadoura (~400 km) using the

same vessel that was used for the mooring installation


Hook-up at final location


In Operation since December 2011!


The WindFloat is monitored 24 hours a day remotelyPreliminary performance analysis


Survivability and performance proved in normal and extreme conditionsPreliminary performance analysis

22 Oct 2011Installation complete

01 Nov 201115 meters wave

20 Dec 2011First Electron produced

03 Jan 2012Operation in Hs=6m andHmax=12,6m


• The fabrication and installation were successfully complete despite all the challenges faced

• The technical results of the first 6 months of operation of the WindFloat are very promising

• The testing and monitoring of the WindFloat will continue during the next years

• WindPlus will start to prepare the Pre‐Commercial phase

• One step towards the development of deep offshore wind

Conclusions


Thank you!

Documents

The WindFloat Project · Offshore Installation Offshore Commissioning Testing and Monitoring Sep, 09 Jan, 10 Sep, 10 Sep, 11 May, 11 … Nov, 11 Dez, 11 Ago, 13 Sep, 11 Sep, 11 Project