ROMO Wind Juan Carlos Martínez-Amago Jornadas Técnicas - AEE September 26 th 2012

ROMO Wind Juan Carlos Martínez-Amago Jornadas Técnicas - AEE September 26 th 2012

ROMO WIND Wind power technology company - Independent Focused on increasing production from existing wind farms Products for yaw correction Services for correcting yaw and other sources of underperformance Highly experienced team with background from leading wind turbine manufacturers

THE ROMO EXECUTIVE TEAM Søren Mouritsen, Co-CEO Successful serial entrepreneur in biotech Poul Anker Lübker, Co-CEO >8 years as executive Vice President in world leading wind turbine producers, including project development and technology acquisitions. Jan Nikolaisen, CFO 5 years as investment director / operating officer at Good Energies, focusing on wind and solar investments Friedrich Preissler-Jebe, Head of Germany 22 years of experience in the wind business. Former manager of NEG Micon DE and since 2005 owner and director of his own company. Management Juan Carlos Martinez Amago, Head of Spain & Latam 14 years of experience in the wind sector. Head of energy finance at La Caixa and former president of Spanish Wind Association Innovations Wind Measurement & Optimization Operation Service Maintenance QC & supply chain Jesper Kjær Hansen >25 years of experience from the wind energy sector in general. Former Head of R&D of the largest wind turbine producers globally. Jørgen Højstrup >35 years of experience in world leading research institutions and global wind turbine producers Jens Lund Lauritsen >20 years of experience from OSM and Project Management and currently at one of the largest wind turbine producers Jørgen Bonefeld, >18 years experience as Vice President Supply Chain Management and QC from the largest wind turbine producers.

MAIN TECHNICAL REASONS FOR UNDERPERFORMANCE OF WIND TURBINES ARE RELATED TO THE ROTOR Yaw error Wind res. & micro siting Pitch error ROMO: ROtor is the MOtor Wind sector management Under performance Rotor config. Tech. availability Operation Infra structure

AGENDA 1. The main problem: Yaw misalignment 2. The solution: The spinner anemometer technology 3. ROMO Wind s service and product offering

COMMON ISSUE: YAW MISALIGNMENT (ROTOR NOT POINTING OPTIMALLY INTO THE WIND)

YAW MISALIGNMENT = LOWER PRODUCTION AND HIGHER LOADS Source: RISØ

PRODUCTION LOSSES FROM YAW MISALIGNMENT CAN BE SIGNIFICANT Average yaw misalignment Wind resource [m/s] Production losses compared with optimal position Small turbine Gamesa G58/850 Medium turbine Acciona AW-77/1500 Large turbine Vestas V90 2.0MW 18MWh/year 31MWh/year 43MWh/year 5 degrees 7.00 0.8% 0.7% 0.6% 1,440/year* 2,480/year* 3,440/year* 72MWh/year 125MWh/year 171MWh/year 10 degrees 7.00 2.6% 2.6% 2.6% 5,760/year* 10,000 /year* 13,680/year* 162MWh/year 279MWh/year 382MWh/year 15 degrees 7.00 5.9% 5.9% 5.8% 12,960/year* 22,320/year* 30,560/year* *) Based on 80/MWh

WHY YAW MISALIGNMENT? CURRENT WIND MEASUREMENT TECHNOLOGY IS INACCURATE

AGENDA 1. The main problem: Yaw misalignment 2. The solution: The spinner anemometer technology 3. ROMO Wind s service and product offering

THE SPINNER ANEMOMETER MEASURES THE WIND IN FRONT OF THE WIND TURBINE Invented by Troels Friis Pedersen, Danish Technical University (RISØ) in 2004; patent granted 2006 Innovative application of old technology Three single-path sonics rotating with the spinner Measures the wind in front of the turbine; more accurate measurements than existing sensors Commercialised by ROMO Wind under the ispin brand

EXAMPLE OF YAW MISALIGNMENT MEASURED WITH ispin1 Danish Project B Yaw misalignment of 30 degrees observed and visually confirmed. Theoretical power curve loss = 25%!!

CASE STUDY 1: YAW MISALIGNMENT MEASURED WITH ispin1 AND MANUALLY ADJUSTED BY ROMO WIND 1. 2. 3. 4. ROMO starts ROMO starts monitoring monitoring yaw yaw misagliment with misalignment with ispin1 ispin1 ROMO corrects the wind vane position A OSM Servie service company provider exchanges the the wind wind vane vane with with a new a new one one ROMO corrects the wind vane position again

INITIAL RESULTS INDICATE THAT THE ISSUE OF YAW MISALIGNMENT IS SIGNIFICANT Turbine # Turbine size (MW) Yaw Misalignment (degrees) Energy Loss (AEP) 1 1.5 30.1 25.20% 2 2.0 15.2 6.90% 3 2.0 12.2 4.50% 4 2.0 11.6 4.00% 5 2.0 11.2 3.80% 6 2.0 9.9 3.00% 7 2.0 9.0 2.40% 8 2.0 9.0 2.40% 9 1.5 9.0 2.40% 10 1.5 8.9 2.40% 11 1.5 8.7 2.30% 12 2.0 8.1 2.00% 13 3.6 8.0 1.90% 14-26 <7.0 <1.4% Average 7.5 2.7% 26 randomly selected turbines 3 different producers All in flat terrain (Denmark and Germany) Average persistent yaw misalignment of 7.4 degrees Half the turbines with yaw misalignment of 8 degrees or more => AEP losses of 2% or more Measurement uncertainties lower than 10% (of AEP)

ispin SET UP: INDEPENDENT FROM WIND TURBINE CONTROL SYSTEM ROMO wind SQL database Ultra-sonic sensores are mounted in the spinner. They transfer data wirelessly to the ispin Brain (datalogger) Data is transferred through GSM network to our database A thorough and well-documented report is delivered to the costumer After succesful yaw error correction, the ispin1 can be deinstalled and all holes covered thoroughly, leaving minimal traces behind

AGENDA 1. The main problem: Yaw misalignment 2. The solution: The spinner anemometer technology 3. ROMO Wind s service and product offering

THE 2 MAIN BUSINESS AREAS OF ROMO WIND 1. Products based on ROMO Wind s patented spinner anemometer technology ( ispin ) ispin1 : for static or average yaw misalignment detection and correction (existing product) ispin2 : for dynamic yaw control (no integration with turbine control system) (prototype and development agreement with Vattenfall) 2. Services to improve performance of existing wind turbines 1. Yaw misalignment (using ispin 1 temporary installation) 2. Pitch misalignment (using proprietary photo technology) 3. Wind Farm Owner s Advocate (360 degree review of wind farm)

CURRENT ispin PRODUCT AND SERVICE PORTFOLIO ispin 1 Manual adjustment Existing product for all turbine types ispin 2 Automatic adjustment Prototype. In development with Vattenfall Correction of structural or average yaw misalignment by manual adjustment of existing wind direction sensor Sale of ispin 1 for permanent installation Also available as service (one-off adjustment based on temporary installation) No infringement of existing certificates Proven and documented effect Correction of permanent and dynamic yaw misalignment by automatic adjustment of existing wind direction sensor Permanent installation No infringement of existing certificates Prototype stage Available 2014

ispin PRODUCT PORTFOLIO WITH OEM COLLABORATION ispin 3 Feed into turbine control Discussions with several OEMs ispin 4 Yaw & pitch control Discussions with several OEMs Substitution to a better instrument enables better yaw algorithm New turbines and retrofit Permanent installation Need collaboration with OEMs Use turbulence, wind shear and inclination measurement to yaw & blade pitch control version 2.0 New turbines and retrofit Permanent installation Need certification & collaboration with OEMs

GL GH Review of Spinner Anemometer Garrad Hassan s main conclusions: ROMO is using the spinner anemometer in accordance with the recommendation of the inventor of the instrument. The Spinner Anemometer is capable of measuring yaw error such that this yaw misalignment can be corrected to an insignificant level. ROMO s calculations of magnitude of energy loss caused by yaw error are confirmed by GL GH calculations using the GH-Bladed model. Relative power curve measurements using the Spinner Anemometer can be made to within 10% accuracy (i.e.10% of the measured difference in AEP).

YAW MISALIGNMENT MEASURED WITH ispin1 Danish Project A

CASE STUDY 2: YAW MISALIGNMENT MEASURED WITH ispin1 AND MANUALLY ADJUSTED BY ROMO WIND 1. ROMO starts monitoring yaw misalignment with ispin1 2. ROMO corrects the wind vane position