LARGER AND LARGER WINDTURBINES: INNOVATIONS REQUIRED FOR SCALING TURBINES”

ECN PART OF TNO SINCE APRIL 1ST 2018Peter Eecen

RECENT DEVELOPMENTS OFFSHORE WIND POWERCosts Offshore Wind Energy.Size Offshore Wind Turbines.Reliability Wind Energy.Effectiveness in Transport, Installation and Maintenance

Market size offshore wind (Europe)

FURTHER COST REDUCTION REQUIREDA leap in scale for offshore wind power is required for the energy transition with large technical, economic and spatial impactCost levels must significantly drop because of additional costs associated with:

Electrification of industry and heatingConversion to energy carriers / storageTransport to load centresBuilding with naturemultifunctional use of space

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INNOVATIONS IN WIND ENERGY MORE URGENT THAN EVER

TKI Wind op Zee

TOWARDS LARGE TURBINESWITH LOW LCOE

We cannot really beat the “cubic” law for the turbine but we can lower the exponent through innovation in design and manufacturingThe (expensive) offshore support structure is governed by a “square” law, rendering large turbines more attractive.Increasing wind farm performance is paramount for LCoE reduction.

The rotor is the motor:large rotors are keyReliability and availabilityintegral design to reduce CAPEX, installation costs, connection and OPEX

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TURBINE SIZE / OUTPUT WIND TURBINES IS IMPORTANT COST DRIVER!

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10+MW OFFSHORE TURBINESMARKET EXPECTS THAT 15 MW OFFSHORE TURBINES LEAD TO SIGNIFICANT COST REDUCTIONS

What knowledge to develop beyond ‘State of the Art’ for further cost reduction

• Integral design

• Validated design tools for 10+MW turbine.

• Aerodynamics for large rotors and turbine control.

• Improved reliability, reduced degradation and corrosion prevention

• Improved maintenance concepts and monitoring technology (IoT)

• Optimising installation of wind farms including human factor and safety

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10+MW OFFSHORE TURBINESMARKET EXPECTS THAT 15 MW OFFSHORE TURBINES LEAD TO SIGNIFICANT COST REDUCTIONS

Installation and logistics for large turbines: new ships and equipment; improved procedures and turbine innovations.

Reliability and safety: Development of robotics in and around turbine for inspections and maintenance

Demonstration and test facilities are key to bring innovations quickly towards their implementation in the offshore wind power plants

These innovations find their implementation in the offshore wind power plants!

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Image source: Senvion. TNO works with Senvion to develop a 10+MW turbine on the basis of the 6.2MW

10+MW OFFSHORE TURBINESMARKET EXPECTS THAT 15 MW OFFSHORE TURBINES LEAD TO SIGNIFICANT COST REDUCTIONS

Larger support structures: New materials and innovative designs for 10+ MW turbines from perspective of turbine and offshore operations

Efficient wind farms: Park-optimisation using wind farm control; turbines acting on wakes to produce more power and lower mechanical loads

Connecting wind farms to the grid and integrating the power in the system: Electrical grid design, energy island, conversion technology and market design

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LIGHT WEIGHT ROTORS FOR 10+MW TURBINES

Larger and more slender –innovations for robust operation

WingletsBlade Root Spoilers

Innovative airfoils

High Reynold Number effects

Advanced, validated models

NL INSTITUTES PART OF EUROPEAN PROJECTS

Cost reduction Offshore Wind EnergyUPWIND: innovations and paving road towards large turbinesINNWIND: innovations in rotor, drive train and support structures

Size Offshore Wind TurbinesThe rotor is the motor: UPWIND, INNWIND and AVATAR developed the required knowledge in physics and technology to design and manufacture large blades

Reliability Wind EnergyVarious EU projects on innovations to increase reliability

The innovations find their implementation in the offshore wind power plants!!

INVESTIGATING BREAK-THROUGH

Solutions for upscaling 3-bladed HAWTs

HAWT WT concepts: 3-bladed (10/20 MW) 2-bladed (10 MW)multirotor (20MW)

VAWT(10MW)bottom mountedfloating

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WHAT IS NEXT?Next generation Models & Innovative Design of 20 MW OWTs and wind farms

Design of 10 MW- 20 MW Floating Wind Turbines

Development of Rotor, Nacelle and Substructure of 20 MW Wind Turbines

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THANK YOU

QUESTIONS?

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