the windfloat project - offshore renewablesatlantic pre-comercial phase the windfloat project lcoe...

The WindFloat Project

WindFloat 2 MW Floating Offshore Wind

WavEC Workshop

13th of November, 2015

The WindFloat Project 2

1. Why Floating Offshore Wind?

2. WindFloat Technology

3. The WF1 Project (Demonstration Phase)

4. WindFloat Atlantic (Pre-Commercial Phase)

5. Conclusions

Agenda


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 …

EDP INOV – Technology Development 4

Deep offshore wind potential goes in line with the quality of the resource and the availability of areas to explore

Deep Offshore Wind: Floating or Fixed?

0 10 5 km

EU15 Potential • Good offshore wind resource (load factor > 3.000h)

• Offshore wind potential is mostly in transitional and deep waters(1) (~65 %)

• Energy Potential >700 TWh (~220 GW)

• Ports and docks available along European coast

Portuguese & Spanish Potential • Continental shelf ends near the coast

• Grid connection available near the coast

• Limited Potential for water depths < 40m

• 250 km of PT Costal Line suitable to be explored

• Energy Potential in PT >40 TWh (~12 GW)

• Energy Potential in SP >290 TWh (~98 GW)

Depth (m) 0 - 30 40 – 200 +

Offshore

potential EU15 77 GW >140 GW

Mean Wind speed (50m)

European Bathymetry

Depth (m) 0 - 30 40 – 200 +

Offshore

potential

PT 2 GW >10 GW

SP 18 GW >80 GW

(1)Analysis limited to 100m water depths

Source: Univ.de Zaragoza – Evaluación Potencial Energías Renovables (2007)

Source: Greenpeace & Garrad Hassan 2004; IEA; Global insight;

EDP INOV – Technology Development

Offshore wind technology is likely to follow Oil &Gas addressing the deep offshore wind challenges

Deep Offshore Wind: Floating or Fixed?

Monopiles

• Basic extension of turbine tower w/ transition piece

• Economically feasible in shallow water depths (10-30m)

Jackets

• Economically feasible in transitional water depths (30-50m)

• Several jackets successfully installed at depths of less than 50m (Beatrice in 2006 was the first project to deploy at 45m)

Other fixed (tripods, tripiles, gravity bases ,…)

• Very limited experience

• Similar depth limitations as jackets

Floating

• Expected economical feasibility in deep waters (50-?m)

• Still limited experience

6

WindFloat is >2 years ahead in commercial deployment vs. most competitors

State of development of selected floating turbine concepts

Sem

i-su

bm

ers

ible

Sp

ar

TLP

Concept development Scale testing Full scale prototype Pre-commercial/Commercial

WindFloat (US/PT)

Mitsui (JP)

Ideol(FR)

HiPR Wind (EU)

Mitsubishi(JP)

Diwet (FR)

Gusto (NL)

Hywind(NO)

Toda(JP)

Japan Marine (JP)

Nautica AFT (US))

Sea Twirl (SW))

Sway(NO))

Gicon (GE))

Blue H(GE))

Pelastar (US)

Iberdrola Etorgai (SP)

Mitsui (JP)

Source: Main(e) International Consulting, LLC






5. Conclusions

Agenda


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

The 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 reduced

The WindFloat Technology

Reduced Risk and Cost






5. Conclusions

Agenda

EDP Inovação

WindFloat Technology Roadmap Bringing the Technology from Prototype to Fully Commercial Farms

11

WF 1

• 2MW Conservative Design

• Verified Numerical Models

• Operational Learning

Pre-Commercial

• Design Optimization

• ~30 MW Windfarms with >6MW

• Different sites and Turbines:

Commercial

• Fully Optimized

• World Wide designs

• LCOE Below market

• Project Finance

2MW

+8MW


The Project is promoted by…

…in a joint venture…

…and counts with the support of…

The WindFloat project was structured as a Joint Venture, WindPlus

The WF1 Project (Prototype)

WindPlus

http://www.inovcapital.pt/index.php?PHPSESSID=2c0eb933e72bc2a50d1fc88ce6aba25b


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

13

The development of the WindFloat project carried enormous challenges due to the lack of know-how in Portugal



The project was implemented under a tight scheduled


Task Timeline

Project Start

Pre-FEED

PDR

FEED

Turbine Selection

Final Investment Decision

Project Execution

Detail 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 years Fabrication 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


Energy delivery since December 2011!

More than 16 GWh produced up today!






5. Conclusions

Agenda


• Total capacity: ~25MW capacity, (3 or 4 units equipped with 8MW or 6MW)

• Location: 20 km off the coast of Viana do Castelo, in water depth of 85-100m

• Interconnection: connected to the transport grid (60kV). No offshore substation

• Construction: several shipyards options available close to final location. Turbine installation quayside

• Floating structure certification: designed for 25 years, certified throughout design, construction and installation by ABS, an independent party

• Strong Institutional Support:

- EU: NER 300

- Portugal: Feed-in Tariff, APA

Pre-Commercial Phase – WindFloat Atlantic


Second Generation currently in late stages design for real projects proving considerable reduction in Cost of Energy

Larger turbines (x3-4)

Design life extension (x5)

Proportionally smaller

platform

Structural optimizations

Equipment improvement

Accessibility

Mooring improvements

Installation improvements

Full Class Certification

WF1 Prototype

WF Atlantic Pre-comercial phase


LCOE competitive with currently commercial technology such as Jackets and the most cost effective in deep waters

126 129 132 129

0

20

40

60

80

100

120

140

Jacket 45m WF 45m Jacket 60m WF 60m

NREL Feb ‘14

Source: GL / GH, December 2012 NREL, Feb 2014

Target:

100

€/MWh

28

Levelized Cost of Energy (€/MWh)

Water Depth






5. Conclusions

Agenda


Final Remarks

30

1

2

3

Floating is already proven technology, and is now proving its financial and economic viability

Reduction of Cost and Risk => Addressing the industry’s challenges while enabling it to reach its full potential

Already several Pre-Commercial Projects ongoing worldwide, expecting to be deploying commercially in the marketplace by 2018


Thank you!

the windfloat project - offshore renewablesatlantic pre-comercial phase the windfloat project lcoe...

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