The Power Curve technology is based on the latest scientific advances in turbine blade aerodynamics, including the effects of Leading Edge Roughness.

A central piece of the Power Curve technology is the vortex generator; a relatively small add-on device for wind turbine blades. Power Curve vortex generators have two unique features.

Higher AEP increase – Compared to similar technologies on the market, Power Curve vortex generators are uniquely designed to not only improve aerodynamics near the root of the blade, but also mitigate airflow separation caused by surface roughness on the outer part of the blade. As tests have shown, this results in a superior increase in AEP.

Reduced turbine downtime – Power Curve vortex generators are integrated on panels. This makes them easier to install compared to individual vortex generators, as our technicians are able to attach the panels with speed and precision. This means less production lost to turbine downtime during installation.

DTU Wind Department on Power Curve technology

Senior Scientist Christian Bak explains the scientific significance of the Power Curve technology.

DTU Logo

“Declining energy production of aging equipment is a problem for turbine owners today. We have yet to fully map out the causes, but we know that one important reason is dirty and eroded blades.

“In the wind industry, as society continues its transition towards renewable energy, it is therefore a very pertinent issue that warrants our very careful attention. This was our motivation for collaborating with Power Curve on developing an upgrade design tool that provides solutions for reinstalling some of the lost power production by utilizing vortex generator technology.

V52 test turbine on DTU campus

Vortex generators on V52 test turbine

“The objective for the design tool has been to develop engineering models that can dependably emulate what happens when vortex generators are mounted on a turbine blade, specifically how it impacts power production and loads. In large part, this entailed continuously adjusting our models to be able to accurately simulate what we can measure in wind tunnels and on real applications.

“After thorough testing on the Vestas V52 test turbine at the DTU campus, we have shown a 99% agreement between the design tool predictions and measurements.

Senior Scientist at DTU Wind, Christian Bak

“In practical terms, the Vestas V52 measurements have given us good confidence that the Power Curve design tool can be used to determine where to position vortex generators on a given blade in order to provide the highest possible increase in power production while at the same time controlling the load impact.”

– Christian Bak, Senior Scientist
DTU Wind Energy

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Statement from DTU Wind Department

Summary from DTU on our ability to predict AEP increase and load impact.

DTU Wind Energy has been an invaluable partner to Power Curve from the beginning, playing a pivotal role in both developing and validating our vortex generator technology.

The statement above summarizes DTU’s evaluation of “Power Pack”, our tool for predicting the AEP increase and load impact of our vortex generators.

Power Curve technology explained by E.ON

E.ON Blade Specialist explains the basics of how our Power Curve vortex generator panels increase AEP.

E.ON is gearing up to roll out Power Curve vortex generators on a US wind farm.
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