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Welcome to W 2 E

Welcome to W 2 E . The wind turbine W90 The familyW9x W 2 E Wind to Energy GmbH Meschendorfer Weg 18230 Ostseebad Rerik Federal Republic of Germany Tel.: +49 38296 758-0 Fax: +49 38296 758-10 E mail: info@wind-to-energy.de. Thank you for your interest!. Contents of presentation:

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Welcome to W 2 E

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  1. Welcome to W2E The wind turbine W90 The familyW9x W2E Wind to Energy GmbHMeschendorfer Weg18230 Ostseebad RerikFederal Republic of Germany Tel.: +49 38296 758-0 Fax: +49 38296 758-10 Email: info@wind-to-energy.de W2E Status. January 2007

  2. Thank you for your interest! Contents of presentation: • The W2E team • The W2E partners – Fuhrländer AG & SeeBA Energiesysteme GmbH • The W9x concept – Nacelle layout, towers, blades • Achieved milestones – W90 on 160m tower generates 1 mio. kWh • Next steps –Wind farm, 8 x W100 • We could show you many more things of which we are proud - our QA system for instance - we kept it short: 21 slides. W2E Status. January 2007

  3. W2E Wind to Energy GmbH • Incorporated: May 2003 • Main office:Ostseebad Rerik, Germany • Branch office: Ann Arbor, USA (W2E Inc.) • Team members: Nine (9) • Shareholders: 25% SeeBA Energiesysteme GmbH75% W2E team • Strategic partners: - SeeBA Energiesysteme GmbH - Fuhrländer AG W2E Status. January 2007

  4. Christoph Klewitz Reinhard Grever Dr. Torsten Schütt • Managing Director • Finances / HR • Purchasing / Logistics • Sales • Development & Design • Mechanical Eng. • Service / Support • Certification • Generator, Inverter • Energy Transformation • Process Engineering • CE-Process Frank Weber Jens Puchert Thomas Schuckart • Concepts • Load Calculation • Certification • Sales America • Pitch System • Elektrical Design • Documentation • QS / CE-Process • Supervisory Control • Process Engineering • Control Engineering • Visualisation Dr. Dirk Machost Anja Grever Matthias Grassow • Control Design • Supervisory Control • Simulation, Loads • Condition Monitoring • Document Management • Office Management • Development & Design • Mechanical Eng. • Measuring • Documentation W2E - Competencethrough Experience • With the support of others, this team has developed six (6) wind turbine types, with ratings from 800 kW to 2500 kW,at one of the world’s main wind turbine manufacturer.  W2E Status. January 2007

  5. The strategic partners -SeeBAGmbH SeeBA Energiesysteme GmbH • The planning, erection and operation of wind parks. • The construction, design and type approval of lattice towers with hub heights greater than 100 m for many commercially available wind turbines. Design engineers work in close collaboration with leading wind turbine manufacturers to produce tower concepts for state-of-the-art wind turbines. SeeBA Energiesysteme GmbH, founded in 1997, is aplanning and development company in two sectors of the wind power market: Photo: Vestas V66 on SeeBA 117 m lattice tower Please view details @ www.seeba-online.de W2E Status. January 2007

  6. The strategic partners - Fuhrländer AG • TechnologyTransfer Support • Assembly & Service Training • Service Concept • Quality Assurance Fuhrländer and W2E - joinedworld widecustomer support Fuhrländer AG is a Germany based company manufacturing up-to-date series wind turbines from 30 to 2500 kW. Fuhrländer adds the following pillars to W2E’s efforts to license the W9x family of wind turbines: Please view details @ www.fuhrlaender.de W2E Status. January 2007

  7. W9x - The Design Principle • Condition Monitoring: • Blades, Rotor bearing, Gearbox, Generator, Tower • W2E used field-proven, off-the-shelf components, each of which is provided by at least two leading wind industry suppliers. • W2E created well-defined mechanical and electrical system interfaces (Plug & Play) to expertly integrate all components. • W2E added a standard on-board Condition Monitoring System that monitors the state of each drivetrain component. These elements of design culminate in the most reliable wind turbine on the market. Photo: W90 at test site south of Berlin W2E Status. January 2007

  8. W9x - Nacelle Transformer: part of nacelle, decreasing line losses, eliminating a park component Moment bearing: absorbing all bending moments and leaving the gearbox with torsional moment only Maintenance & Repair tracks: running wind farm contained winch unit • - Condition Monitoring: • Rotor bearing, Gearbox, Generator, Blades*, Tower* Rotor coupling: openings allowing for save entry into hub without clim- bing over hub or into spinner Gearbox support & Joint to rotor coupling: fully elastomer bedded - accustically decoupling the gearbox Inner location of slewing ring: containing oil and grease within tower, preventing bending moments in tower interface Lower nacelle gateway: allowing for disassembly and exchange of all drive train components * CMS offered for SeeBA towers and LM blades W2E Status. January 2007

  9. W9x - Drivetrain (4) Rotor bearing: used for decades in tunnel driving machines, absorbes all loads but the torque (1) Gearbox: mounted on entire circumference (no “sitting duck” motion) Moment bearing (absorbing all bending moments and leaving the gearbox with torsional moment only) • Condition Monitoring: • Blades, Rotor bearing, Gearbox, Generator, Tower Maintenance & repair tracks (running wind farm contained winch unit) Transformer - part of nacelle (decreasing line losses, eliminating a park design component) (2) Elastomer elements by ESM (individually exchangeable), increasing drivetrain damping 2-fold, and thus taking out torque peaks Rotor coupling (openings allowing for save entry into hub without climbing over hub/ into spinner) Lower nacelle gateway (allowing for disassembly and exchange of all drive train components) Gearbox support & joint to Rotor coupling (fully elastomer bedded - accustically decoupling the gearbox) Inner location of slewing ring (containing oil and grease within tower, preventing bending moments in tower interface) (3) Simple cast iron (more damping) linkage between gearbox and rotor bearing, stiffer (less drivetrain oscillations, e.g. at grid failure) but lighter than a conventional shaft (5) Warm nacelle air (and personell) can enter the hub, creating a climatized chamber – the electric pitch system likes it W2E Status. January 2007

  10. W9x - Hub • Novel approach to safety system - simple but “smarter”: hard-wired, conditional logic increases system safety and decreases operational loads • Plug & Play: all connections in hub & nacelle by plugs only, single exception: power cables Distribution Box (Lightning protection system, Communication system) Electrical Pitch Drive unit (controlled by SPS via Pitch Logic Unit: a simple software for maximum control but minimum confusion) Blade Position Encoder (unit with zero gear clearance, control signal pitch position sampled closest to blade, commission & repair: return to zero position per button push) Cabinets, housing: Litium-Ion batteries (or Capacitors) & Pitch Logic Unit (Litium-Ion batteries: simpler control, leight weight, increased life time; PLU: avoiding electro-mechanical components, such as relais) W2E Status. January 2007

  11. W9x - Full Replacement Capability • The wind-farm or service-station contained winch system enables the service team to replace all main components without external crane: • Generator • Gearbox • Rotor bearing • Rotor blades • Hub Drawing: The nacelle gateway is opened up. The generator is about to be removed, the gearbox could be next. The opened nacelle wings serve as extended service platform. W2E Status. January 2007

  12. W9x & Competition - Tower Heights The extra tall W9x towers are designed to capture maximum energy at a given site: 85 / 100 m tubular tower, 117 / 141/ 160 m lattice tower. SeeBA GmbH specializes in, and has years of experience in the design and manufaturing of tall lattice towers. Source: Wind Turbine Market 2005 Photo: W90 on 160 m lattice tower W2E Status. January 2007

  13. The W9x Family – Overview The W90 (STANDARD) is the first and concluded phase in the development of the W9x wind turbine family. In order to conclude phase 2, the Germanischer Lloyd Statement of Compliance for the W100 (LOW WIND) is scheduled for March 2007. The complete family allows for a modular selection of the appropriate wind turbine for the client’s wind farm site, on one identical platform. W2E Status. January 2007

  14. The Prototype – Work shop system test & commissioning concluded: April, 2005 The Plug & Play concept and the neatly defined interfaces are evident – not only in the hub. The Mainframe: sound support for the rotor bearing and transfering the rotor loads straight into the tower; the gearbox is “nestled” load-free within. Photos: Fuhrländer AG works, Waiganshain, Germany The Hub: The closed cast design provides extra stiffness, the blade bearings like it. W2E Status. January 2007

  15. The Prototype – Turbine erection on test site concluded: September, 2006 The nacelle is in place on a 160m lattice tower. That is World record! This W90 will yield 30% more energy than on a 100m tower. Add another 20% with the 100m-rotor option, W100! Photos: Test site near Laasow, Germany W2E Status. January 2007

  16. The Prototype – Turbine erection on test site concluded: September, 2006 Plug & Play at work at 160m, lifting in the gearbox subsystem and connecting it: 2 hours. Have your suppliers deliver the main components on site and save on logistics! Photos: Test site near Laasow, Germany W2E Status. January 2007

  17. The Prototype – Turbine commissioning concluded: October, 2006 The assembly was completed before schedule without complications on Sept. 14th. After commisioning the subsystems one by one, the W90 did its first run in semi-automatic mode on Oct. 10th. Photos: Test site near Laasow, Germany W2E Status. January 2007

  18. The Prototype – Turbine in full operation: November, 2006 After optimizing the various controller- and supervisory control functions, the W90 began operating in fully-automatic mode on Nov. 08th. Despite the fact that this W90 continues to be halted for various tests, it logged the first one million kWh on Jan. 3rd. WP4000 online-display: the 1 mio. kWh mark was surpassed on Jan. 03rd Photo: Test site near Laasow, Germany W2E Status. January 2007

  19. W9x, Conclusion W9x – achievements: • W90 Germanischer Lloyd (GL) C-Design Certificate granted: April 2004 • W90 (GL) B-Design Certificate granted: March 2005 • W9x Nacelle assembly and work-shop test concluded: April 2005 • Presentation at fairs in Husum and Hannover: September 2005, April 2006 • Financing for W90 Prototype erection secured: March 2006 • W90 Prototype installed on 160 m lattice tower: September 2006 • Commissioning test by GL successfully concluded: Dec.19, 2006 W2E Status. January 2007

  20. W9x, Conclusion W9x – achievements (cont.): • W90 (GL) Statement of Compliance (A-Design) granted: Dec. 28, 2006 • W90 on 160m lattice tower logs its first 1 Million kWh: Jan. 3, 2007 • W100 Prototype installed on 100 m tubular tower: December 2006 W9x – Next steps: • W90 Measurement campaign starting: February 2007 • W100 (GL) Statement of Compliance expected: March, 2007 • Wind farm comprising 8 x W100: Summer 2007 W2E Status. January 2007

  21. Thank you for your time! W2E Wind to Energy GmbH Tel.: +49 38296 758-0 (CET 8:00 – 17:00) Fax: +49 38296 758-10 Email: info@wind-to-energy.de W2E Wind to Energy Inc. Tel.: +1734 761-4163(EST 8:00 – 17:00) Fax: +1 734 761-7217 Email: fweber@wind-to-energy.de If the W9x concept caught your interest contact W2E at: WP4000 Controller Update firmwareAnalysis Data Aquisition Makes HTML files e.g. parameter/sums Read predefined HTML files W2E Status. January 2007

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