Navigation : EXPO21XX > WIND ENERGY 21XX > H01: Onshore Wind Turbines > GE Renewable Energy
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  • How does a wind turbine work?
    A wind turbine is comprised of three blades, a hub, and a nacelle, which all sit atop a steel tower. When wind blows, the blades spin clockwise, capturing wind’s energy. This triggers the main shaft, connected to the gearbox within the nacelle, to spin. The gearbox increases the rotational speed and sends that energy to the generator, converting it to electricity. Electricity then travels downtower to the transformer, where it is converted again to AC or DC voltage depending on the grid.


    With rated capacities ranging from 1.6 MW to 3.2 MW, GE’s current wind turbine offerings combine industry-leading design and technology to provide high energy capture in virtually any wind speed environment.
      • 1.7-100/103 Wind Turbine

      • GE’s 1.7-100/103 wind turbine offers a 47% increase in swept area when compared to GE’s 1.6-82.5 turbine, resulting in a 24% increase in Annual Energy Production (AEP) at 7.5 m/s.

        This increase in blade swept area allows greater energy capture and improved project economics for wind developers. The 1.7-100/103 uses GE’s proprietary 48.7-meter blade which has the same proven aerodynamic shape as the blades found on the 2.5-100.

      • 1.85-87 Wind Turbine

      • GE’s 1.85-87 wind turbine is designed for Class IIs winds, and offers an 11% increase in swept area and an extra 230 kW output at rated wind speed compared to the 1.6-82.5 turbine. The increase in blade swept area results in a 10% increase in Annual Energy Production (AEP) at 8.5 m/s. 

        GE’s proprietary Advanced Loads Control allows siting of the 1.85-87 wind turbine in Class IIs wind regimes, combining drive train sensors and capabilities of the Mark* Vie turbine controller to individually pitch blades and improve loads handling performance.

        GE’s stringent design procedures result in a turbine engineered for high performance and availability with the same reliable performance as the rest of GE’s 1-2 MW fleet.

      • 1.85-82.5 Wind Turbine

      • The GE 1.85-82.5 is the turbine of choice for IEC class II winds, and provides over 7% more AEP than the 1.6-82.5 at 8.5 m/s. The 1.85-82.5 turbine is available in tower heights of both 80 and 65 meters. These tower sizes both provide flexible options for Class II wind sites,as well as higher energy capture in a variety of challenging environments.

        The proprietary GE Advanced Loads Control combines drive train sensors and the capabilities of the Mark* Vle turbine controller to pitch blades separately and enhance load handling performance.  This makes the 82.5 meter rotor a great option for Class II wind regimes.

      • 2.5-120 and 2.75-120 Wind Turbine

      • Designed for IEC Wind Class IIIs, GE’s 2.75-120 wind turbine features a 120-meter rotor in combination with the proven single-blade pitch control. The 2.75-120 offers the latest enhancements in load management controls, low acoustic emissions, efficient electrical power conversion and robust performance.
      • 2.0-2.4 MW Platform

      • GE's 2MW Platform: Customizable Turbines to Enhance Siting Efficiency

        GE’s 2.2-2.4MW, 107m rotor wind turbine is an advanced evolution of the 1.x series, providing a 35% increase in Annual Energy Production (AEP) over its predecessor, the 1.85-87 (at a 2.4 rating). Designed for medium wind speeds, the 2.2-2.4MW turbine provides a 51% increase in swept area with the 107m rotor, and an extra 350-450 kW output at rated wind speed compared to the 1.85-87 turbine, improving project economics for wind developers. GE’s proprietary Advanced Loads Control combines drive train sensors with Mark* VIe turbine controller capabilities to individually pitch blades and improve loads handling performance.

        GE’s 2.0-2.3MW, 116m rotor wind turbine offers a 27% increase in swept area when compared to the 1.7-103 turbine, resulting in a 26% increase in Annual Energy Production (AEP) at 7.5 m/s (at a 2.3 rating). This increase in blade swept area allows greater energy capture and improved project economics for wind developers. GE’s 2.0-116 turbine has a 53.3% gross capacity factor at 7.5 m/s, a class leading performance. GE’s proprietary 56.9 meter blade is designed specifically for the 2.0-2.3MW rating of this platform, enabling longer length, lower loads and improved performance.

      • 3.2-103 Wind Turbine

      • The GE 3.2-103 brilliant wind turbine can generate a substantial amount of energy for medium-to-high wind speed sites. Building upon the remarkable performance of the 2.5-2.85 MW fleet, our 3.2-103 turbine provides up to a 5% increase in energy output, while still featuring the same reliability as the 2.85-103. Towers for hub heights range from 70 to 98 meters, which means the 3.2-103 can help wind developers generate more AEP, even in sites that may be constrained by tip height.

        The 3.2-103 is part of our brilliant turbine portfolio, and uses the power of the Industrial Internet to help manage the variability of wind and provide smooth, predictable power. By analyzing tens of thousands of data points every second, the 3.2-103 has the capability to integrate energy storage and advanced forecasting algorithms.

      • 3.2-3.4 MW Platform

      • Extending the capability of the Digital Wind Farm to our 3MW machines, GE's 3.2-3.4 MW platform is adaptable to a full spectrum of wind regimes.  The platform includes the 3.4-137, our highest performing turbine for Class III winds, providing up to 24% higher output compared to the 2.75-120 turbine.  

        Our 3MW machines share drivetrain and electrical system architecture, with each of those systems being scaled and upgraded for improved performance and greater energy production, as compared to previous models. 

      • ECO 100 Wind Turbine Platform

      • The electricity generated by a single ECO 100 wind turbine meets the power needs of 2,000 average European households and avoids the production of 9,000 tons of CO2 a year.

        Makes the most of onshore wind resources

        The ECO 100 range of wind turbines offers high yield and leading efficiency across all wind classes, as well as optimized energy production and lower cost of electricity thanks to PowerOf3*.

        These large wind turbines – the ECO 100 has a swept area larger than an Airbus A380 – are the answer for projects that require both high energy yield and high reliability from the wind turbines.


        The ECO 100 Platform

        The ECO 100 platform is an extensively proven platform with over 1,752,000 cumulated operating hours (or the equivalent of 200 operating years) as of December 2013 and more than 2,000 MW installed or under construction worldwide as of January 2014.

      • Haliade 150-6MW Offshore Wind Turbine

      • Thanks to its 150-meter diameter rotor (with blades stretching 73.50 m), the turbine has a yield 15% better than existing offshore turbines, enabling it to supply power to the equivalent of about 5,000 households.

        Developed for all offshore conditions, our 6MW direct drive wind turbine combines proven technology and innovation. Building on our unique Pure Torque* design, it provides high yield and uncompromising reliability that will lower the cost of offshore energy.

    • Wind Technology

    • Maximum output. Increased efficiencies. Enhanced integration. These are just some of the end-user goals that drive our GE Wind Technology teams on a daily basis as they work to help you make the most of your wind turbine platforms.
        • Space Frame Tower

        • GE is pleased to introduce the space frame tower, a logistics-friendly tower with an installation cycle time, aesthetic, and service profile comparable to conventional tubular towers. Available for the 2.5/2.75-120 at 139 m hub height, the space frame tower can be easily delivered to, and assembled at any project site, including those where terrain makes movement of traditional tower sections difficult.

          Applications and Benefits

          • Stress-free logistics
            The elements of the space frame tower are transported via standard 12.2 m (40’) shipping containers or flatbed trailers. The result is predictable, efficient tower delivery across the globe to help keep your project on schedule.
          • Solid structure aesthetics
            The architectural fabric covering provides a solid structure appearance in a structurally-efficient lattice design, benefiting projects which have been permitted for a conventional tower design. The covering provides protection from the weather while still allowing useful ambient light to pass through.
          • Competitive installation cycle
            Using specialized fixtures and applying lean principles, the space frame tower at 139 m hub height will be assembled and installed with an overall cycle time comparable to tubular steel towers of the same hub height.
        • Wind Plant Wake Management Software

        • GE introduces wind plant wake management, the first farm-level application in GE’s Brilliant wind platform. Brilliant harnesses the power of the Industrial Internet to drive higher farm output, improve services productivity, and create new revenue streams for customers.

          Wind plant wake management is a controls application which reduces wake losses. Wake losses occur when a velocity deficit created behind a turbine rotor reduces the wind available at downwind turbines, lowering plant-level energy production.

          Applications and Benefits

          • The increase in annual energy production from wind plant wake management is site dependent, but will typically range from 0.5%-2%.
          • Wind plant wake management is intended to operate alongside existing wind plant control platforms and will not require hardware changes for sites with existing SCADA servers.

          Technical Description
          Utilizing advanced algorithms and control tools developed at GE’s Global Research Center, wind plant wake management integrates data from turbine-level and plant-level controls with real-time wind characteristics and micrositing information, then adjusts individual turbine operational parameters such as pitch angle, tip speed ratio, and rotor speed in order to reduce wake losses and increase plant level energy output