Page 24 - North American Clean Energy May June 2018 Issue

wind spotlight: turbines
Turbines
Wind turbines convert the kinetic energy in the wind into mechanical power and are generally divided into categories based on their rated capacity. Large wind turbines range in size from 100 kilowatts to as large as several megawatts. Small turbines, below 100 kilowatts, are used for homes, telecommunications dishes, or water pumping. Here we focus on some of the small and large wind turbines available today.
SEE AD ON PAGE 11
Siemens Gamesa Renewable Energy
Product: SG 2.7-129 Capacity: 2.75MW
Blade length: 63.5m (208ft) Hub height: 87m (285ft) Swept area: 13,080 m2
Rotor Speed: 12.5rpm Nominal Power: 2750kW Cut-in wind speed: 3 m/s Nominal wind speed: 12 m/s Cut-out wind speed: 23 m/s
Key Features:
• Aeroelastic tailored blades with 129- m rotor diameter;
• IntegralBlade technology, DinoTails Next Generation, Vortex Generators, and optimized cross-sections (airfoils) design;
• Adaptive yaw system for optimized performance;
• Gearbox with two planetary stages and one helical for increased capacity;
• Efficient direct cooling system. www.siemensgamesa.com
SEE AD ON PAGE 17
Nordex USA Inc.
Product: AW125/3000
Capacity: 3000kW
Blade length: 61.2m (200.78ft)
Hub height: 87.5m to 120m (287ft to 393.7ft)
Swept area: 12,305m2 Rotor speed: 86.5 m/s Nominal power: 3000kW Cut-in wind speed: 3.5 m/s
Nominal wind speed: 10.5 m/s Cut-out wind speed: 25 m/s Key Features:
• Ideal for higher wind projects in the Central Plains and Texas;
• Optimized design for the US market;
• Financed by top lenders. www.nordex-online.com
Goldwind Americas Product: GW 136/4S MW
Capacity: Scalable: 4.0MW and 4.2MW
Rotor diameter: 136m (446ft)
Hub height: 80m, 100m, and 110m (262ft, 328ft, and 360ft, respectively)
Swept area: 14,711 m2
Rated power: 4000 and 4200kW Cut-in wind speed: 2.5 m/s Rated wind speed: 11 m/s Cut-out wind speed: 25 m/s www.goldwindamericas.com
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Catalog downloads at www.centa.info Email inquiries to [email protected]
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MAY•JUNE2018 /// www.nacleanenergy.com
Suzlon Wind Energy Corporation
Product: S128
Capacity: 2700kW
Blade length: 64m (210ft)
Hub height: 86m to 120m (282ft to 394ft)
Swept area: 13,000m2
Rotor speed: 7.3 rpm to 12.1 rpm Nominal power: 2700kw
Cut-in wind speed: 3 m/s Nominal wind speed: 9.5 m/s Cut-out wind speed: 20 m/s www.suzlon.com