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

Recapping The Wind Industry's Third-Quarter Deals

Mercom Capital Group recaps investment and merger and acquisition activity during July, August and September.


Yearly Installed Capacity Figures Already Beat 2013 Numbers, More Wind On The Way: AWEA

While the American Wind Energy Association (AWEA) lobbies Congress to extend the production tax credit, the association notes wind projects now under construction signal a vibrant 2015.


Yahoo Inks Contract To Buy Kansas Wind Power

The Internet company plans to log in to the Alexander wind project, which is being built by community developer OwnEnergy.


Could Initial Offshore Wind Projects Crash New England's REC Market?

Some are concerned that the first offshore wind projects could negatively impact pricing of renewable energy credits (RECs) in New England.


Catching Up With The DOE's Down-Select Offshore Winners

The three recipients of key U.S. Department of Energy (DOE) funding provide updates on their offshore wind demonstration projects.

Canwea_id1984
Renewable NRG_id1934