in News Departments > Products & Technologies
print the content item

The Energy Research Centre of the Netherlands (ECN) says its Active Wake Control system is capable of increasing the electricity production of wind farms by 0.5% to 5%. Additionally, ECN expects that maintenance costs could be reduced by 3%.

According to the research center, ECN has tested the technology on five wind turbines at its wind farm test site. The center's Haico van der Heijden says, "The next step is a large wind farm, preferably offshore. That is not a place where you want to experiment, which is why we have waited until the technique had proven itself."

Through optimal positioning of the wind turbines, ECN says the patented system reduces the wake effects of turbulence. In a perfect line position, turbines produce 100% power but also take a 100% load on axes and blades. When placed behind each other, the upstream turbine still produces 100%, but the capacity of the downstream turbines is reduced to 60% or 50%. Further, ECN says wake effects caused by turbulence increase their load to 110% or 115%, and maintenance costs rise proportionally.

By changing the pitch angle and/or the yaw angle of the front turbine a few degrees, ECN says the turbulence is deflected/altered, thus reducing the load and increasing the power production of downstream turbines.



Trachte Inc._id1770
Latest Top Stories

Setting The Record Straight: How Many Birds Do Wind Turbines Really Kill?

Several peer-reviewed studies are more or less in agreement with avian mortality rates caused by wind turbines. However, one study, which is wildly off from the others, is most often cited in the media. Why?


Six Takeaways From The IRS' Start Of Construction Guidance: What You Need To Know

The IRS recently issued guidance to wind developers to further spell out what "start of construction" means. Will you be covered?


Eagle Take Permits For Wind Farms - Will They Fly?

Now that the U.S. Fish and Wildlife Service has issued the first permit allowing the legal take of eagles, can wind developers expect more certainty in the agency's application process?


Despite 2013 Challenges, U.S. Wind Power Reaches All-Time Low Price

In a new report, the U.S. Department of Energy details the highs and lows of the country's wind industry last year, and the agency maintains that the U.S. sector remains strong.


Mexico On Pace To Set New Renewables Investment Record

A new report says the country has spent $1.3 billion on clean energy in the first half of 2014 and could end up seeing a record year. Furthermore, wind power is slated for significant growth in the region.

Renewable NRG_id1934
Canwea_id1984
Tower Conference_id1965