NENUPHAR the next generation offshore wind turbines. October 2015

Transcription

1 NENUPHAR the next generation offshore wind turbines October 2015

2 Nenuphar is developing the next generation offshore wind turbine Nenuphar in brief Established in 2006 by Charles Smadja and Frédéric Silvert France based developer of a new floating offshore wind turbine concept a large scale vertical axis wind turbine (VAWT) Started the development activities in 2009 and has already completed two large scale onshore prototype test campaigns The last 2 prototypes hold the record for the largest H-shaped vertical axis wind turbine in the world (1250 m 2 of swept area) Commissioned the third onshore prototype in July 2015 and expects a full scale offshore test in 2017/2018 More than 40 employees involved in design, engineering and fabrication Strong relationships with solid industrial players EDF, Technip, Areva/Adwen Target for launch of commercial demonstration farm in 2021 HAWT* Vertical axis wind turbine (VAWT) VAWT Contra-rotating VAWT Nenuphar s wind turbine concept is based on the vertical rotation axis technology, while traditional wind turbines are based on a horizontal rotation axis technology Nenuphar s VAWT concept secures a more substantial electricity generation, simplifies maintenance and reduces CAPEX Nenuphar s contra-rotating dual rotor VAWT architecture provides increased wind farm performance and optimizes floater costs *HAWT = Horizontal Axis Wind Turbine 2

3 Key considerations Novel technology with verified prototypes offering more substantial electricity generation estimated at ~30% lower LCOE than competing floating technologies Potential to obtain a 30%+ market share in a EURbn market Offshore test site already secured clear roadmap to commercialization Strong team and development capabilities, with backing from blue chip investors 3

4 DNV GL has recently made a favorable assessment of Nenuphar s team and the technology s potential The electric energy production of the Nenuphar VAWTs can be expected to be amongst the best in class for VAWTs. DNV GL considers an LCoE in the range of EUR/MWh as achievable in future projects under the provision that Nenuphar s objectives of the developments are met. DNV GL has observed a professional project structure, with a clear product strategy, several distinct design phases for a given product and tollgates between the design phases including listings of priority documents per tollgate. Further, ownership of the various tasks and roles & responsibilities seem well defined. Even more, the Nenuphar technical leadership team has a relevant track record and is supported by ADWEN, a leader in offshore wind. The joint development of the offshore site with EDF EN and access to their offshore specialists, strengthen Nenuphar even more in this role. For the integrated design, Nenuphar has established a design loop methodology which DNV GL considers to be transparent and clearly defined. DNV GL, 02 October

5 Strong support for floating offshore wind from the French Government Tenders for pilot floating offshore wind farms France launched a tender for several floating offshore wind turbine projects in August 2015 Three sites in the Mediterranean and one site off southern Brittany Wind farms with between 3 to 6 turbines and capacity of 5 MW per turbine France will become the first country to test floating offshore wind on a large scale Norway and Portugal has tested a single turbine each The tender will close on April 4, 2016 Nenuphar has good support from the French Government Economic incentives EUR 150m has been made available for the floating offshore wind sector one third as subsidies and two thirds as loan The French tax credit system enables companies to refund 30% of R&D costs Companies such as Nenuphar will receive the tax credits as cash backs The regime is considered the most favorable tax incentive in Europe Visit of the French Republic President Mr Francois Hollande and the Prince of Monaco of the Nenuphar wind turbine model (04/06/15) BERD = Business R&D Source: 5

6 Nenuphar s game changer is the Contra-Rotating wind turbine technology Nenuphar s Contra-Rotating wind turbine technology The technology Two vertical axis wind turbines rotating in opposite directions Improving energy capture by creating a forced flow Nearly eliminating wake losses => Performance on farm level could be increased by 15%~20% Mounted on the same structure Increased capacity per floating structure Novel technology reducing CAPEX Higher stability obtained at significantly lower CAPEX Contra-Rotation reducing forces on the floating structure Reduction in Wind Thrust up to 35% Reduction in Heeling Moment up to 45% CAPEX equivalent to a traditional shallow water solution Specifically designed for floating offshore wind farms Floater concept developed together with turbine for a fully integrated FOWT concept currently under development 6

7 Nenuphar s game changing roadmap A dual rotor concept can fully leverage VAWT properties Single rotor performance similar to HAWT Basic wind turbine performance is based on conservation of mass and momentum through rotor of swept area (Betz law) Nenuphar s single turbine can have similar perfomance as a HAWT First row HAWT Streamtube expansion HAWT wake is a powerful steady swirling structure Other rows Decrease of wind speed for most of farm turbines Contra-Rotating Rotors will improve performance Nenuphar s Contra-Rotating rotors change the mass flow through and past the rotor The power coefficient (Cp) can increase with 10-20% The wake is unsteady an allows full wind speed recovery for other turbines Contra-rotating VAWT Increase of performance at individual turbine level Streamtube contraction between rotors increases upwind resource Increase of performance at farm level CR HAWT wake is unsteady and the contra-rotating rotor creates vortices of opposite sign cancelling each other Full wind speed can be recovered after 10D for other turbines 7

8 Performance on wind farm level significantly increased with Contra-Rotating VAWT Wake losses is a large problem for regular wind farms In large scale farms, the wake loss can represent % of total Annual Energy Production (AEP) Wake and turbulence caused by wind flowing through the turbine reduce the wind potential downwind => Powerful and steady wake swirling structure Requires longer distance between turbines Yields less energy output Nenuphar s VAWT eliminates the majority of wake losses and improves wind farm performance Unsteady wake structure and quick wind speed recovery Wind crosses the rotor twice (upwind and downwind) => the wake generated upwind along the blade is broken downwind Contra-Rotating VAWT increases the wind speed recovery further based on preliminary study Full wind speed recovery after 10x rotor diameter (i.e 600m for 5 MWe CR VAWT) Wake loss ~0% (for standard farm densities) 8

9 Contra-Rotating technology gives lower thrust and heeling moment significant CAPEX reductions Reduction in Wind Thrust up to 35% Reduction of Heeling Moment up to 45% Yaw Moment (Mooring) cancel Thrust Moment (Floater) Ref. Height 82,5m Dual CR CR Thrust 65% Ref. Height 100m HAWT Ref Thrust 100% -35% Wind direction 2x Single CR Moment 82,5 x 65% = 53 Moment 100 x 100% = 100 VAWT: Thrust is not perpendicular to wind direction CR technology cancel perpendicular component of thrust vector leading to a decrease of thrust Dynamic pitch enables VAWT to target similar thrust level similar to HAWT for similar rotor and rated power (before contra-rotating effect) Reduction of Thrust and Moments lower requirements on floater compared to HAWT, thus reducing CAPEX 9

10 Competitive advantages Significant value potential with LCOE estimated to be at over 30% lower than traditional floating wind Increased turbine performance Net annual energy production increases at farm level Nenuphar s design significantly reduces CAPEX A clear patent strategy and strong IP coverage to protect technology and market position Single VAWT turbine expected to be at par with modern HAWT Contra-Rotating technology will further improve performance Wake losses is a large problem for wind farms Wake losses nearly eliminated with Contra- Rotating technology Net annual energy production increases of 15% - 20% Simplified and lighter floating structures Simplified production Simplified installation lower installation risk and cost Simplified maintenance reduces life time costs Key concepts are covered by patents A clear strategy for retaining valuable intellectual property Source: Siemens 10

11 State-of-the-art simulation program providing optimal designs based on new technology Novel and VAWT-dedicated simulation method Aerodynamics of VAWTs are more complex to model than for HAWTs => traditional methods not optimal for VAWT assessment: Blade Element Momentum (BEM) models not able to model wakes and the flow inside the rotor Computational Flow Dynamics calculations is time consuming and complex, and cannot be used as an engineering tool => used for validation purposes or special investigations Nenuphar has developed a Vortex / Panel method which can be used as an accurate engineering tool for VAWT More complex than BEM but still fast simulation tools State-of-the-art simulation methods able to model the wakes, the 3D effects and viscous flow Developed together with strong partners Adwen for the aerodynamics modules IFP EN for the aero-hydrodynamic coupling simulations (based on Deeplines Wind) Simulation codes and design methodology are under review by DNV-GL to speed up the certification of the first commercial wind turbine Nenuphar s Vortex / Panel method simulation tools Nenuphar engineering tools suit include: An aero-elastic coupling (aerodynamics / structures modelling) An aero-servo coupling (aerodynamics / control system modelling) An aero-hydrodynamic coupling (aerodynamics / hydrodynamics modelling) ARDEMA 2DS / PHARWEN 2.5D (2D simulation tools) PHARWEN 3D (2D/3D simulation tools) ARDEMA 3DS (3D simulation tools) 11

12 Fully approved offshore test site already secured together with EDF Nenuphar test sites in the Fos / Marseille area Offshore test site (MISTRAL) Onshore test site (Fos-sur-Mer) 600 kwe Test site for 2 offshore wind turbines Fully authorized by every local and national authorities 5 km from shore Close to large industrial centers Easy access with any type of boats Suitable also for dual rotor turbine Site owned by Mistral SAS company, which in turn is owned 78% by Nenuphar and 22% by EDF Energies Nouvelles 12

13 Nenuphar has attracted strong partners during the development phase Technip Complete development for a tri-floater / Semisubmersible expertise Design of a first VAWT concept for the Technip floater Joint development of offshore site EDF Access to EDF R&D experts and offshore specialists Areva / Adwen Technical support with several wind energy experts Development, engineering and fabrication of innovative vertical axis wind turbines First onshore prototype test: 35 kw 3 vertical blades North of France (Ferques) Second onshore prototype test: 600 kw (currently the largest H- shaped vertical axis prototype in the world) 3 twisted blades South of France (Fos sur mer) Third onshore prototype test: 600 kw 3 vertical/straight blades South of France (Fos sur mer) 13

14 and is expecting offshore test and full certification within 2020 Numerical simulations with ADWEN Vortex codes validation: CFD simulations and literature Single WTG / dual contra-rotating WTGs numerical wake assessment Project MOQUA Project Contra- Rotating rotors 2 bladed grounded wind tunnel test (funding granted) Static blade pitch Contra-Rotating 2 bladed wind tunnel test Performance improvement optimization Wake dissipation assessment Fourth onshore prototype test: 600 kw 2-bladed rotor with vertical/straight blades with blade pitch system First offshore prototype 2 contra-rotating wind turbines South of France (Port-Saint-Louis-du-Rhône) Second offshore prototype 2 contra-rotating wind turbines >5 MW South of France (Port-Saint-Louis-du- Rhône) Pilot farm Multiple contra-rotating wind turbines South of France (Fos-sur-mer) 14

15 Strong management team with extensive experience from offshore and wind industry Olivier Jaboulay CEO Engineer (Arts & Métiers), with an executive MBA background (HEC) Olivier has over 20 years experience with various responsibilities in project management, business development and administration of legal entities through international positions for the infrastructure industry (Cégélec, Alstom, Areva), including Solar and Offshore Wind. Charles Smadja CCO Engineer in Aeronautics (ISAE), with an executive MBA background (ESSEC) Charles has over 20 years experience years in the Energy sector, where he served in Alstom as project manager and production director. He became then an entrepreneur and co-founded Nenuphar in Frédéric Silvert CTO/System integration Engineer in Aeronautics (ENSICA), with a MSc. in Gas Turbine Technology, a MPhil. in Thermal Power (both in Cranfield University) and an executive MBA (ESSEC) Frederic has over 17 years in the Energy sector, where he served first in Alstom as development engineer, technical project manager, test and production manager, risk manager, quality manager and site manager. He became then an entrepreneur and co-founded Nenuphar in Gwenn Martin CFO MBA & Accounting graduated (Reims Business school & DECF), Chinese speaker (Beijing Language & Culture univ.) Gwenn has over 15 years experience with various responsibilities in Financial control and Controlling through international positions in the industry (ELF Atochem, Veolia Water). She focused on the continuous improvement of financial information and internal control, with notably IFRS transition and SOX compliance.. 15

16 Nenuphar has a strong and dedicated development team Overview of Nenuphar s development team Number of employees Engineering System Integration Draftsman Industrial / Manufacturing 2 Offshore Engineering & Operations Engineers Total Development The development team consists of 32 employees 29 engineers 2 draftsmen The Engineering department has capabilities within both Mechanical and Electrical engineering Mechanical engineering: 8 employees (6 engineers and 2 draftsmen) Electrical, control and auxiliaries engineering: 7 engineers Systems integration also includes «Code Development & Loads Assessment», and «Test & Certification» System integration: 2 engineers Code Development & Loads Assessment: 6 engineers Test & Certification: 4 engineers Industrial / Manufacturing employs 2 engineers and 1 draftsman The Offshore Engineering & Operations department has two engineers 16

17 NENUPHAR the next generation offshore wind turbines 17