in News Departments > FYI
print the content item

The average power rating of a utility-scale wind generator is expected to reach 2.4 MW by 2017, according to a report from IMS Research.

The report, "The World Market for Wind Generators," concludes that wind turbines and wind generators will continue to grow larger in average physical size and in average output.

In 2011, the average power rating of a utility-scale wind generator was 1.75 MW, IMS notes.

With many wind farm projects consisting of more than 100 wind turbines, the relatively minor increases in average output power per turbine can add up rapidly, concludes IMS.

"Based on the physics principles involved, a relatively small increase in a wind turbine's blade length and the corresponding swept area exponentially expands the amount of wind energy that is captured and then converted to electricity by the generator,” says Greg Johnson, generators analyst at IMS. "Therefore, the utility-scale wind generators market continues to move toward generators with higher output power ratings to keep pace with the growing size of wind turbines."

In order to operate at medium and slow speeds, a wind generator's physical size greatly increases in order to incorporate the large number of magnetic poles required.

For example, a standard high-speed wind generator consists of 4 magnetic poles, while a slow-speed, direct-drive generator can have upward of 50 magnetic poles and a diameter of more than 7 meters. Based on these factors, wind generator suppliers must keep pace with the market demand for bigger wind generators and adjust their manufacturing procedures and facilities accordingly.


Trachte Inc._id1770
Latest Top Stories

Bird Groups Target LEEDCo's Icebreaker Offshore Wind Pilot

Two bird conservation groups that helped halt a wind project earlier this year argue that Lake Erie Energy Development Corp.'s (LEEDCo) 18 MW offshore demo poses a major risk to regional wildlife.


Report Disputes U.S. Agency's Renewable Energy Projections

A new analysis from the Sun Day Campaign says renewables are slated to provide 16% of U.S. generating capacity by 2018 - over 20 years earlier than forecast by the Energy Information Administration.


Kansas Renewables Mandate Survives Yet Another Attack, But Is It Too Early To Celebrate?

Over the past three years, some legislators have tried to either weaken or repeal the state's renewable portfolio standard, which requires Kansas utilities to reach 20% renewables by 2020.


AWEA Highlights U.S. Wind Success Stories Of 2013

Despite a 92% drop in new capacity last year, the sector still has myriad reasons to celebrate, according to a new report from the American Wind Energy Association.


Feds List New Bird Species As Threatened - Should Wind Developers Be Worried?

The U.S. Fish and Wildlife Service is designating the lesser prairie-chicken as threatened under the Endangered Species Act. An expert explains how this might affect the wind industry.

WomenofWind_id
JLG_id1900
UEA_id1896
Acciona_id1907
bonfiglioli_id1913
AWEA_id1886