To maximize available wind resources and further reduce wind power's cost of energy, Alstom is upgrading its 3 MW onshore ECO 100 platform, which includes ECO 100 and ECO 110 turbines. The company also plans to introduce a new machine to specifically address low-wind-speed sites across the globe.
The ECO 100 turbine, currently positioned for medium- to high-wind sites, is being upgraded to a high-wind (IEC Class I-A) turbine. The ECO 110 turbine, currently suitable for Class III sites, is being upgraded to a medium-wind (IEC Class II-A) turbine.
Hub heights of the platform are 75 meters, 90 meters and 100 meters, with taller towers planned for 2012. Both turbines are now being offered now for deliveries.
Alstom will complete the range with a new high-capacity factor, low-wind (IEC Class III-A) turbine, the ECO 11X, which also includes a larger rotor diameter, according to the company. The exact rotor diameter, in the range of 115 meters to 125 meters, is expected to be released in the second half of this year.