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1 GHREPOWER POWERING YOUR FUTURE Wind Solution Expet

2 Why GHREPOWER? Who is GHREPOWER? GHREPOWER is one of the world s leading system providers of small and medium wind power products. The GHREPOWER headquarters and factory are based in Shanghai and the products are exported worldwide. GHREPOWER, UK, based in South Wales, opened for business in 2011, to supply the GHREPOWER 50kW and 100kW wind turbines to the UK market. The Team The establishment of GHREPOWER has its origin in the research and application mandate at the China Wind Research Institute dating back to Today, GHREPOWER employs more than 200 people worldwide, and focuses its design and development purely on the small and medium sized wind turbine systems. GHREPOWER has a dedicated workforce and experienced Research and Development Team of more than 30 engineers from a wide variety of backgrounds, including civil, mechanical, aerodynamics, electrical, electronics, computer science and software. Technology GHREPOWER holds over 30 technical patents in the design of its Gearless-Direct-Drive, Permanent Magnetic Generator, Controller and Inverter; Ideal for farmers, businesses and communities. All components of the system come with a 5 year manufacturer s warranty and a five-year maintenance contract is also available. Certification GHREPOWER is the first and only small wind turbine manufacturer in China to proceed with independent testing outside of China. The GHREPOWER 50kW turbine is currently undergoing MCS testing at the TUV site in Scotland, with testing to be completed in 2012.

3 50kW Wind Turbine Direct Drive PM Technology Our gearless direct drive Permanent Magnet technology eliminates the need for a gearbox in induction type generator. This results in improved generating efficiency and system reliability. Intelligent Multi-Level Protection The smart pitch control brake, mechanical brake, electromagnetic brake, dump load and active yaw system are intelligently controlled and adjusted under extreme weather conditions to ensure the highest levels of safety and protection. Low Noise Design 2 Units of 50kW Installation in UK With an optimised low speed Permanent Magnet Generator and favourable aerodynamic characteristics of the blades, the noise level is reduced to a minimum. MCS Wind Turbine Testing By TUV NEL The GHREPOWER 50kW wind turbine is in the process of MCS testing based on the IEC and BWEA standard in Scotland. Certification is expected imminently. Applications The GHREPOWER 50kW is suitable for domestic, commercial and community applications. Examples 50kW Installation in UK Tuv testing Leisure Centre power supply in UK; Farm power supply in Iowa, USA; Small factory power supply in Sweden. Specification Model Rotor Diameter Material of Blade Number of Blades Protection Cut-in Wind Speed Rated Wind Speed Survival Wind Speed Rated Output Power Rated Output Voltage (V) Generator Type Tower FD14-50/ m FRP 3 Yaw Regulation, Stall Control Mechanical Brake Electromagnetic Brake 3 m/s 12 m/s 59.5m/s 50 kw DC460 V 3 Phase PMG 20 m, 25 m, 30 m 50kW Application in Oil Field 50kW On Grid in Italy

4 100kW Wind Turbine Sophisticated Design Concept The first 100kW wind turbine with gearless, active pitch control and permanent magnet generator design in the world. Optimised Active Pitch Control Active pitch control technology allows the turbine to automatically adjust its pitch angle during periods of strong wind and capture more wind energy during periods of low wind. It also ensures a steady power output, increasing efficiency. GHREPOWER have a national technical patent on this design. Smart Multi-Level Protection The smart pitch control brake, mechanical brake, electromagnetic brake, dump load and active yaw system are intelligently controlled and adjusted under extreme weather conditions to ensure the highest levels of safety and protection. Full Power Inverter with Isolation GHREPOWER s full power inverter converts and transfers unsteady wind energy to a steady AC power of constant frequency and voltage to the grid. It isolates the wind turbine from the grid to ensure the wind turbine s safety and minimise disturbance to the grid. Applications The GHREPOWER 100kW is suitable for domestic, commercial and community applications. Examples Korean National Smart Grid project in South Korea; Commercial investment project in Italy; An American innovative project in Massachusetts; Power Curve Direct Drive and Permanent Magnet Specification Model Rotor Diameter Material of Blade Number of Blades Power Regulation Protection Features Cut-in Wind Speed Rated Wind Speed Survival Wind Speed Rated Output Power Rated Output Voltage Generator Type Tower FD21-100/ m FRP 3 Pitch Control Pitch Control, Mechanical Brake Electromagnetic Brake, Yaw Regulation 3 m/s 12 m/s 59.5m/s 100 kw DC460 V 3 Phase PMG 24 m, 30 m, 36 m Variable Pitch System

5 12kW/36kW/60kW On Grid Inverter Inverter Specifically Designed for the GHREPOWER Wind Systems Fast-response inverter designed for the GHREPOWER wind systems; Optimised power tracking maximises the power output; A wide range of DC input voltage (Max input Voltage: 750V); Customised power curve setting through HMI; Isolation transformer included; User-Friendly Design Display in multi-language, on-the-fly operational parameter setting; Grid-connected operation in accordance with international standards; RS-485 communication interface for remote monitoring; Field-Proven Reliability Five-year warranty; available for extendable service; ETL Certification 60kW inverter in the certification process by ETL to meet US UL1741,IEEE1547 and Canada C ; G59 UK standard Inverter Certification Equipments Owned by Ghrepower

6 Inverter Specification Model Input Parameters (DC Side) Nominal DC Input Power Maximum Input Power Maximum Input Current DC Input Voltage Range Maximum Input Voltage Allowed Input DC Voltage Ripple Output Parameters (AC Side) Nominal AC Power AC Grid Connection Nominal AC Voltage Maximum AC Voltage Range Nominal AC Frequency Nominal Current (at 400Vac) Nominal Current (at 480Vac) Power Factor (cosθ) Maximum Efficiency AC Current Distortion (THD) Display & Communication Display Communication Mechanical Environmental IP Rating Dimensions ((W*D*H) (mm)) Weight GNW60K3G 63kW 70kW 150A GNW36K3G 38kW 40kW 75A GNW12K3G 12.5kW 15kW 30A 380V-680V DC 750Vdc <5% 60kW 36kW 12kW 3Phase 380 Vac or 3Phase 480 Vac (US) 380 Vac or 480 Vac (US) Vac or Vac(US) 50Hz(49-51) or 60Hz( ) 86.7A 52.0A 17.4A 72.2A 43.3A 14.5A > % <5% at rated power LCD(5.7, 320x240) RS485 IP20 800*600* *600* *400* kg 500kg 250kg Electrical Circuit Diagram Breaker Three-Phase Full-Bridge Transformer Contactor Breaker L1 LCL Filter EMC Filter L2 L3 N Communication Module Control Unit Human Machine Interface G

7 GHREPOWER Controller Features Standard modularised design with PLC (Siemens) Advanced control algorithm and excellent control method Most optimal work efficiency Configures cut-in/cut-out wind speed freely Automatic pitch control Closely matched with the inverter Self-protection functions, easy operation and favoured design Remote monitoring system Specification Rated Output Power Max Output Current Structure/IP Protection Protection Level Communication Environment Humidity GHREPOWER Controller 50kW / 100kW DC220A SCADA Remote monitoring PWM multistage dump load-reduces vibration IP20 Daily or total power generating 85% RH

8 On Grid System Integrated system designed and manufactured by GHREPOWER Synchronised generator, controller and inverter maximises the power output; Streamlined and optimised whole system design enhances system stability and reliability; SCADA for real-time remote monitoring; Widely applied and well received around the world; Diagram 2 units of 50kW Community Project Grid Fit Meter Controller On Grid Inverter Wind turbine Annual Energy Production 100kW Factory Power Supply Annual Energy Yield (kw/h) kW 100kW Average Wind Speed at Hub (m/s) 50kW for small business project Annual Energy Yield (Average Wind Speed at Hub) Turbine Model 5 m/s 6 m/s 7 m/s 8 m/s GHREPOWER 50kW kw/h kw/h kw/h kw/h GHREPOWER 100kW kw/h kw/h kw/h kw/h

9 Quality Control All components, except the towers, of the GHREPOWER 50kW and 100kW wind turbines are manufactured in house in Shanghai, China. On site facilities include the generator and control system assembly, electrical and electronic workshops and a system integration and testing facility. These resources allow us to have total quality control over our products. Every wind turbine goes through a complete system testing before leaving the factory. Wind Turbine Testing Inverter Testing Client Inspection MCS Testing in Scotland System Testing Installation Te l : ( 0 ) i n f g h r e p o w e r. c o. u k w w w. g h r e p o w e r. c o. u k

10 Worldwide Presence Projects Worldwide GHREPOWER products are found worldwide. There are currently GHREPOWER 100kW wind turbine installations operating in China, South Korea and the USA. The GHREPOWER 50kW wind turbine is operating in 23 countries around the world, including Scotland, Belgium, Russia, Italy and Sweden. After the successful completion of the first two pilot projects in Nepal in 2011, the ADB (Asian Development Bank) have selected GHREPOWER, as its sole qualified supplier for the wind-solar hybrid system for their upcoming initiative to power-up selected rural areas in Asia. CE, Certificated by SGS ISO9001, Certificated by BSI Certificates and Reports by CNAS approved test center

11 100kW Remote Monitoring - SCADA data Feb 2012 Network Communication Mode Optional cabled or wireless internet connection; Real-time system operation status monitoring; Operating wind turbine remotely through internet; Daily production log and historical volume record; Main Interface Structure drawing of network communication Te l : ( 0 ) i n f g h r e p o w e r. c o. u k w w w. g h r e p o w e r. c o. u k

12 Return on Investment GHREPOWER 100kW Wind Turbine The GHREPOWER 100kW wind turbine offers a very good return on investment, and a very quick payback. The worked example below, illustrates potential income yields at a variety of average wind speeds. Assumptions The table below estimates the annual energy yield and income from the GHREPOWER 100kW wind turbine. The table assumes the following: Current FIT rate for the GHREPOWER 100kW at per kw/h Current FIT export rate of per kw/h 50% on-site consumption, with savings from own energy use at 0.12 per kw/h LEC income on energy used at 0.485p per kw/h 95% availability of the turbine for power generation Average Wind Speed at Hub (m/s) Estimated Annual Yield (kw/h) Annual FIT Value Annual Savings from Own Energy Use Annual Export Value LEC Income Total Annual Income 5 m/s 149,796 38,048 4,134 2, ,868 6 m/s 233,016 59,186 6,431 3, ,794 7 m/s 316,236 80,324 8,728 4, ,721 8 m/s 382,812 97,234 10,566 5, ,662 9 m/s 441, ,031 12,173 6,837 1, , m/s 490, ,713 13,552 7,610 1, ,066 Estimated Annual Income 160, , , ,000 80,000 60,000 40,000 20,000 0 GHREPOWER 100kW Estimate d Annual Income Average Wind Speed at Hub (m /s )

13 Worldwide Installations 50kW On-Grid System--Sweden 100kW On-Grid System--Korea 50kW Utility Power Supply--China 50kW On-Grid--Scotland 100kW On-Grid System--China Shanghai Te l : ( 0 ) i n f g h r e p o w e r. c o. u k w w w. g h r e p o w e r. c o. u k

14 What GHREPOWER customers say: GHREPOWER has been the perfect choice for us at our farms. Their wind turbines are far superior to any other turbine we looked at...; Plus the support we have received during the installation and even after we have been up and fully operational has been very impressive... M. Roenfanz, Ventura, IA, USA GHREPOWER has commissioned two 50kW turbines in a public park environment with many challenges. The commitment of the GHREPOWER UK team to deliver this project in a timely professional manner was exemplary. The turbines are fully commissioned, helping reduce our carbon footprint. Craig Dalgliesh, West Lothian Council, UK In our opinion, the Eastwind turbines* have proven to be the most reliable in their class, both from a reliability and performance standpoint... Private Energy Systems, Inc., USA *GHREPOWER retails under Eastwind in the USA. The quality of the components and the technology, both in design and construction, place GHREPOWER products on the highest range in the sector L. Tommaso, 3LWind Italy GHREPOWER Ltd. 1 High Street, Clydach, Swansea, SA6 5LG Tel: +44 (0) Fax: +44 (0) info@ghrepower.co.uk