New EOLIA Project and its outcomes in Deep Offshore Floating Wind...

EOLIA Project and its outcomes in Deep Offshore Floating Wind Technology


March 15st, 2011 - Brussels

Javier Pascual

Technology Development, Wind and Marine Renewable

[email protected]

Phone: +34 34 948 006000

© Acciona. Confidential Information. All Rights Reserved

2

AGENDA - TOPIC

• Acciona. Who we are

• Developments in Floating Wind Turbines

• EOLIA Project-Designing offshore foundations for deep waters (>40 m)

• Analyzing the results of Scale tests with 3 different floating structures using 5MW turbines

• Next Steps


3

ACCIONA

WHO WE ARE


4

Sustainability:Economic growthEnvironmental

balanceSocial progress

Energy

Infrastructure Water

• Leaders in development and infrastructure management, with almost one century of experience,

excellence in quality and solid technological capability

• Among the top 15 of Europe biggest construction companies

• Project portfolio (Dec 09): 7,021 M€ (25% in international market)

• Focused on national and international markets: Canada, USA, Mexico, Brazil, Poland and Chile

A business model based on three pillars


5

Energy - The only company with leadership in all the most viable renewables

HydraulicWindPhotovoltaic

SolarConcentratingSolar Power BiodieselBiomass Bioethanol

ELECTRICITY BIOFUELS

Solar Thermal

HEAT

Data at 31.11.2010. The company owns an additional 100 MW in cogeneration.

Horizontal integration

Ver

tica

l in

teg

rati

on

Wind turbines

6,244 MW 911 MW 65 MW 48 MW 214 MW 1 MW 270,000 t. 26,000 t. Own

1,472 MW 67 MW 1 MW 14 MW Customers

Total renewables owned by the company : 7,587 MW

7,716 MW Total115 MW 215 MW 15 MW

Total installed capacity in renewables: 9,108 MW

911 MW 65 MW 270,000 t. 26,000 t.


6

Infraestructure – experience in marine construction


ACCIONA owns 2 specialised construction vessels, being the floating dock “Kugira”, the biggestin the world with a displacement of 15.000 t.

It length is 74 m long by 49 m beam. It has a capacity of building concrete caissons of 66x34x32 mfor several types of marine works (port terminals, docks and foundations) by sliding.

7

Infraestructure – experience in marine construction


ACCIONA was the main contractor for the GBS Adriatic LNG terminal. This was a one concretestructure with a regasification capacity of more than 8.000 million annual m3, weighing in excessof 280,000 tons, that was wet towed and ballasted at a location several kilometers off the coast ofVenice (Italy) at more than 20 meters water depth.

The entire assembly did consisted on a unique design, incorporating high degree of technologyinnovations and advanced construction methods, for being built in a dry dock at Algeciras Bay(Spain).

8

TURBINE (35%)

STRUCTURE (20%)

INSTALLATION (15%)

CABLE & GRID (25%)

Areas covered by ACCIONA GROUP internally

Lower Risk due less Contract Interfaces-INTEGRATION

Offshore Wind Basic Cost Structure Breakdown

9

OFFSHORE FOUNDATIONS

Developments in Floating Wind Turbines


10


BOTTOM MOUNTED FLOATING

GBS FOUNDATIONS

MONOPILE

MULTIPOD

SOIL INTERACTION

INSTALLATION & CONSTRUCTION

SEABED TYPE, NEED TO PREPARE

UNITS TO BE INSTALLED

DISTANCE TO CONSTRUCTION PORT

WATER DEPTHMai

n is

sues

to

con

sid

er

SPAR

TLP

Barge

Other

DYNAMIC OF FLOATING BODY

MOORING LINES

CONTROLS AND DAMPING

INSTALLATION and CONSTRUCTION

DYNAMIC CABLES

SIMULATION and DESIGN TOOLS


11

Costs of offshore wind turbines at various water depths

Source: HiPRWind Project



Source: NREL

Cost of Floaters at different water depth

12

• Which floating solution is the most promising today and why? Will it be tomorrow? Can we answer these questions?

• What is the trend of the industry? Increase in size of WTGs, far away, bigger farms.

• How does the boundary conditions affect to the Design of Foundations and weight/cost?

• Which are the restrictions? Vessels? Crane capacity in Vessels?

• Is cost a major issue? Is risk accounted?

• Will floating foundations be used twice? “2nd Used”

• Will floating be a solution? In which range of water depth?

• .....?



13


EOLIA Project


14

EOLIA

EOLIA mission was to develop technology in order to be able to have feasible offshore windprojects in deep waters (> 40 meters). The project did not focus solely in energy technology, itwas a wide technology project that covers additional areas such as aquiculture, desalination andnaval technology.

The project was a Consortium of 16 Firms, lead by ACCIONA ENERGIA, with a total budget of 33,9MM€ and funded by CDTI with 16,7 MM€.

EOLIA comprised the project partners, plus 25 RTOs and 7 additional firms all subcontracted bythe project partners. The project term is 4 years from 2007 till 2010.

Project Management

4 Floating structure concepts suited for OWTGs

1 General specifications and goals set up

7 Offshore site assessment technologies

8 Offshore O&M methodologies

9 Aquiculture at offshore wind farms

2 Fixed structures and global installation concepts

3 Electrical technology – Grid connection

5 Marine equipment for offshore works in deep waters

6 New offshore wind turbine concepts

10 Offshore desalination © Acciona. Confidential Information. All Rights Reserved

15

EOLIA

The ultimate goal is to lower Cost of Energy (€/MWh)

EOLIA looks to all stages as a single picture, understanding where higher cost reduction possibilities are.

As a single picture new innovative paths can be follow in order to achieve those cost reductions.

• Reliability and Availability are KEY.

• Weight reduction per MW installed.

• Simplify site selection processes.

Some targets to support the road towards the ultimate goal in case of floaters:

• New Foundations to be designed (Fixed and Floating).

• New specific Offshore Wind Turbines.

• New Design Codes and Simulation Tools.


16

EOLIA

Depth: 200 m

Distance to shore: 25 Km

Wave Spectrum: 50 years return period

Significant wave height: 15 m

Expected Peak Period: 17 s

17

EOLIA

18

EOLIA - FLOATERS

SPAR: Ballast

TLP: MooringSemi: Buoyancy

Dutch-Trifloater CMA TLP

Barges MIT Taut-leg SPAR

Tethered SPAR buoyAcciona SPAR

Acciona TLP

Acciona SEMI


19© Acciona. Confidential Information. All Rights Reserved

Floating PlatfomrsFloating Platfomrs

20

EOLIA - FLOATERS

Acciona Windfloat (Principle Power) Hywind (Statoil)

Basin CEHIPAR (Madrid) Univ. California (Berkeley) Marintek (Trondheim)

Scale 1:40 1:105 1:47

Wave model Long Crest Long Crest Long/Short Crest

Wind modelling

Yes, Thrust Forces monitored (Series)

Yes, Turbulent, with use of disc to simulate drag and gyro effect

Yes, Turbulent, with scale WTG and Control system

Others 5MW WTG Not modelled mooring Current included


21

EOLIA - FLOATERS


• Free Decay Tests (6 dof): To obtain resonance frequencies and damping at each frequency

• Forced Oscillations Tests in different periods and amplitudes: To obtain hydrodynamic coefficients

• Tug Tests: To obtain force due to current excitation (0.5-5 knot )

• Regular Waves Tests: To obtain RAOs

• Irregular wave and Turbulent Wind Tests (taking into account misalignments): Seakeeping Analysis

• Mooring Test

• Others…

Tests Implemented:Tests Implemented:

22

EOLIA - FLOATERS


Wind and Waves Test Conditions:Wind and Waves Test Conditions:

23

EOLIA - FLOATERS

¿How is Acciona within the international floating development?

• 3 different floating concepts have been studied coupled with moorings and with a 5MW

WTG at 200mts water depth at 1:40 Scale

• Design tools calibrated and new mooring internal tools developed.

• Knowledge has been acquired.

Acciona has been the unique organization, global wide that has evaluate and tested at Basin Scale (1:40) 3 different floating solutions/concepts.

Our conclusions: There is no optimal solution, as there are a variety of optionsdepending on the site and boundary conditions that need to be considered from the very beginning.

We see that Spain is capable to work in partnership and with similar understanding that other players in floating wind designs.

In fact we are doing so....

................ HiPRWind project- NEXT STEP-TO GET WET!


24

EOLIA - FLOATERS


Scope

• Testing at industrial prototype scale to develop 10 MW range OWT

• Treat bottleneck issues such as maintenance, power stability, weight/size limitations

• Advanced power electronics and ICT sub-systems

• Project start date: November 1, 2010. End date: October 31, 2015

• Total budget ~ 20 million €, total EC-funding 11 million €

HiPRwind: High Power, high Reliability offshore wind technology“

Key facts and figuresKey facts and figures

Project coordinator: Fraunhofer IWESCall FP7-ENERGY-2010-1

25

EOLIA - FLOATERS


HiPRwind: High Power, high Reliability offshore wind technology“

Aim:

Install and operate a floating MW-class wind turbine for research purpose in Bay of Biscay, in Bilbao (Spain)

Timing:

• 1st year: design of the floating platform and of the research equipment

• 2nd and 3rd year: procurement, construction and installation of the floating WT

• 4th and 5th year: WT operation and maintenance for experimental research



March 15st, 2011 - Brussels

Javier Pascual

Technology Development, Wind and Marine Renewable

[email protected]

Phone: +34 34 948 006000


Thank you!Thank you!

Date post:	15-Oct-2020
Category:	Documents
Upload:	others
View:	1 times
Download:	0 times

New EOLIA Project and its outcomes in Deep Offshore Floating Wind...

Documents