w2power: first twin turbine floating platform at sea · cdti-nedo joint workshop on offshore wind...

1CDTI-NEDO Joint Workshop on Offshore Wind

CDTI-NEDO Joint Workshop on Offshore Wind

Kitakyushu, 8th of July 2019

W2Power: First twin turbine floating platform at sea

Pedro Mayorga,

President and CTO

EnerOcean S.L.


EnerOcean profile

✓ Lean R&D SME based in Malaga (est. 2007) and Canary Islands✓ Specialised in Marine Energy Engineering✓ Business scope:

▪ resource & feasibility studies to commercial exploitation

✓ Winner of several awards, tenders and projects

✓Member of APPA Marina (National Marine Energy Association) advisory board✓Member of Cluster Marítimo-Marino Andaluz, Andalusian maritime cluster✓Member of Cluster Andaluz de Energías Renovables ( CLANER)✓Member of National standards committee for Wave & Tidal technologies CTN206/SC114✓Member of several EU and Spanish technological platforms✓Recognized Innovative Small Company: Pyme Innovadora (Spanish award)

✓H2020 SME Instrument Phase I and Phase III (investability assessment)✓FP7 “MARINET Ambassador” award

✓DNV-GL Quality and Environmental Systems Certified


EnerOcean and W2Power

✓ Lead Developer of W2Power technology since2012.

✓ First Spanish floating wind platform in the sea.✓ First multiturbine floating solution to reach sea

testing in the World. ✓ Today Owner of all IP related to the W2Power

solution▪ GRANTED PATENT▪ PRIORITY DATE MARCH 2009▪ “A floating, anchored installation (1) for energy production

where the installation (1) comprises at least one windmill (4), wherein the installation (1) comprises a triangular portion (17), where the at least one windmill (4) is disposed outside the triangular portion (17) of the installation”

▪ “An installation according to claim 1, characterized in that the installation (1) comprises windmills (4) in pairs”


W2Power: The lowest-cost floating solution

✓ Delivers up to 12MW power on one foundation:- Two 6MW WT’s: Less weight and much lower loads on the floater

✓ Uses bankable turbines, commercially available today:- Multiple suppliers worldwide: cost per MW will drop in near term

✓ Installed on a robust, hydrodynamically proven floating platform:- Semi-submersibles proven from oil & gas- Used on all seas for more than 40 years- Greatly simplified for lower cost and easy build- Flexible design allowing multi-use in future

✓ Features many technical innovations and IP, all targeted at reducing CAPEX and OPEX

✓ Has been systematically developed since 2009 through TRL (Technology Readiness Level) 2 to 6:- Many EU and National projects- Sea testing of Prototype ongoing 2019 (PLOCAN, Gran Canaria)- MW scale Pilot Demo planned /- Pre-commercial Array from 2022 <230 of platform steel per MW

For all seas and any depth from c. 35m.

The best 12MW

solution is two 6MW turbines!

In a W2Power platform!


Key technical specifications

Main Dimensions

▪ Hub height: 90m

▪ Distance between tower bases: 90m

▪ Beam during construction: 72m

▪ Power: up to 2 x 6 MW

• A light-weight semi-submersible platform enclosing a largewater plane areasecuring hydrodynamic stabilisation far greater than othersemi-sub floaters.

• Commercial, already bankable offshore turbines.Current design accommodates up to 140 m rotors.

• Extensive testing. Completed TRL advancement in 8 tank-test campaigns, using 4 laboratories in 3 countries

• Demonstrated at OPEN SEA since Spring 2019


Technical advantages = Lower energy cost

▪ Benefits of W2Power self-orientation

◦ Platform yaw in front column, always facing wind direction

◦ Allows closely spaced turbines (=> uses less steel in platform)

◦ Less absolute misalignment (zero yawing threshold). Elimination of active turbine yaw system, known to cause long downtime / expensive breakdowns.

▪ Benefits of leaning towers and twin turbines

◦ Smaller wind turbines for the same power

=> Lower cost per MW and using fully proven technology

=> Lower height. Less loads. Cheaper assembly and maintenance

◦ Leaning towers allow a smaller platform => less steel, lower CAPEXVertical reach of nacelle from barge => no crane vessels, low OPEX

▪ Lightweight but large semi-submersible platform

◦ Excellent hydrodynamic stability with smaller column volume and draft: => Reduces construction steel need.


Systematic step by step development (VIDEO)

Intense design optimization of structure and components...from 2009 artist’s conception through repeat design cycles

Use of the best European labs to test models and key components: Marintek (NO), U.Edinburgh (UK), U.C.Cork (IE), FloWave (UK)

Sea testing of scaled prototype is fully financed and on-going:

WIP10+ at PLOCAN (2016-19)

Leader

Spanish Partners UKPartner


Project WIP10+ (2016-2019). Prototype at sea

✓ Fully functional floaterall subsystems, 1:6 scale, pitch-controlled WT pair

✓ PLOCAN test site

✓ TRL = 6: Relevant environment


W2Power prototype at sea


Ideas for a Japan – Spain collaboration

✓ Looking for additional partners to exploit/co-develop next stages of W2Power

✓ Development of specific design modifications to the W2Power for Japanese waters.

▪ Mild wind resource

▪ Serial manufacturing/ available manufacturing capacities adaptation

▪ Typhoon risk adaptation

✓ Addition of multiuse capacities to W2Power floating platforms

▪ Several options available, please contact us for detail discussion.


Summary

▪ W2Power is a patented solution that uses wind turbines available today and proven platform technology. This allows major de-risking of floating wind.

▪ Industry-leading power per foundation and connection point: 12 MW

▪ Can be built, installed at any depth, maintained and repaired world-wide.

▪ W2Power’s unique design enables most efficient use of floater, cabling, installation, lowering operation & maintenance, decommissioning costs.

▪ Platform is wind-vaning, eliminates turbine yaw, lower cost, increased uptime – reduced OPEX as well as CAPEX

▪ Lower LCoE than any other known contenders (on all sites investigated)

▪ Superior multi-use capability for additional economic upside potential

▪ Very high potential for Spanish, Japanese waters and globally

The best 12MW

solution istwo 6MW turbines!

Thank you for your attention…

ご清聴ありがとうございました

THANK YOU

どうも有難う御座います

GRACIAS

Pedro Mayorga

[email protected]

EnerOcean S.L.

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w2power: first twin turbine floating platform at sea · cdti-nedo joint workshop on offshore wind...

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