This website uses cookies. The third part cookies used on this website are used to gather information about how people navigate the site. If you continue to use our website, you accept the use of cookies. Find out more about cookies used on and how to delete them here. Cookie Policy

Fleet Optimisation by the numbers


PowerPlus® upgrades can improve AEP
by up to 5%


More than 7,000 turbines are already enjoying
the benefits of PowerPlus®


Vestas offers multibrand Vortex Generators for
9 different turbine OEMs.


As wind technology matures, turbines already in operation can be upgraded to yield more energy and thereby improve an existing wind park business case.

Improvements of the production efficiency of a wind power plant can be carried out through site-specific optimisation of operational parameters, implementation of intelligent software algorithms, and enhanced aerodynamics add-ons. All designed to make your turbine work smarter and harder. 

Vestas PowerPlus® can boost your energy production by up to 5% annually at virtually no risk. Our DNV-GL-certified siting process ensures that design life is not impacted. Our DNV-GL-certified validation methods accurately measure power curve performance improvements from the upgrades. 

PowerPlus® covers a range of upgrade possibilities that can be combined or installed independently, counting Aerodynamics Upgrades, Extended Cut Out, Power Performance Optimisation and Power Uprate.

PowerPlus® Brochure > PowerPlus® Track Record >

Aerodynamic Upgrades

Improved blade efficiency

Aerodynamic Upgrades improve the aerodynamic performance of the rotor blades, boosting annual energy production (AEP) by up to 2%. Aerodynamic Upgrades are available for a range of Vestas platforms, as well as an extensive list of multibrand turbines.

The technology consists of Vortex Generators, which aid lift creation around the blades. This translates into a better aerodynamic performance during the turbine’s partial load operation. The AEP improvement is therefore captured on the slope of the power curve, when the turbine operates below rated power.

To know more about how Aerodynamic Upgrades can improve your business case, check out our case study featuring ENGIE Deutschland and our whitepaper, which goes into depth with the technology.

Extended Cut Out

Reap the benefits of high wind speeds

Vestas has developed Extended Cut Out, which allows turbines to operate beyond their original cut out speeds to capture the full potential of strong winds.

By increasing the cut out wind speed, Extended Cut Out can generally deliver an Annual Energy Production improvement of up to 3%, and even up to 5-7% at sites with very advantageous climatic conditions.

Read more about the results we have already delivered for other wind parks in our case study, or download our product sheet for a quick overview of the upgrade.

Power Performance Optimisation

Smarter operation with intelligent algorithms

To help turbine owners uncover and realise the uncaptured energy, Vestas has developed a range of smart algorithms to help the turbine make better decisions. Improved measurements of wind speed, wind direction, and optimal yaw alignment enable theturbine to act smarter and thereby become more effective.

Moreover, our algorithmic features allow for smarter use of power boosts as well as allowing the turbine to exploit low air-density climatic conditions to operate in high winds.

Power Uprate

Increase nominal power for a higher yield

Power Uprate is designed to increase the nominal power of your turbine, allowing you to use its full capacity.  An increased annual energy production of up to 4% can be achieved, proving an opportunity to significantly improve the performance of your fleet.

A site-specific analysis, using proprietary tools and certified processes, is always conducted to assess how the rated power of your turbine can be increased to maximise output, without affecting the original design. 

Read more


    Case study

    Aerodynamic Upgrades

    Read a case study on Aerodynamic Upgrades, a PowerPlus
    ®  feature that includes two blade add-ons to improve the aerodynamic conditions over the root section of the blade. Doing so will increase wind capture, positively impacting AEP by up to 2%.

    ”Together with Vestas, we established a 
    common understanding of the gain potential. Vestas’ estimation tool convinced us, so we decided to upgrade all our V90-turbines to maximize our returns.”

    Rainer Röper
    Sr. Asset Manager, ENGIE Deutschland

    Case study

    Vestas PowerPlus' Aerodynamic Upgrades can improve AEP by up to 3%

    Rotor Upgrade

    Vestas Rotor Upgrade is an after-sale solution that consists in supplying and installing larger rotor and blades on operating wind turbines. The larger rotor size leads to an expanded swept area, which improves wind capture, thus enabling significantly higher energy production.

    Depending on wind turbine model, applicable Rotor Upgrade and site-specific conditions, Vestas Rotor Upgrade can boost the annual energy production of a functioning asset by up to 15%.

    Rotor Upgrade >

    Vortex generators

    Wind is by nature turbulent, which influences the performance of wind turbines. Vortex generators (VG) stabilise the wind flow around turbine blades, increasing energy yield, while reducing stall and noise emissions. On average vortex generators can increase annual energy production by more than 2 %.

    To improve the aerodynamic performance of selected non-Vestas turbines, Vestas provides a platform independent retro-fit technology, delivering  a cost effective and reliable aerodynamic upgrade solution for specific multibrand fleets.

    Contact us for more information >

    Yaw alignment

    To optimise yaw alignment on selected turbine types we provide a LiDAR system for yaw misalignment correction. The nacelle-mounted LiDAR measures wind direction and wind speed 80m in front of the wind turbine. It uses these measurements to optimise the yawing, providing increased energy production.

    The system is easily retrofitted on certain existing turbines with minimal interference and downtime. Since 2012, it has delivered proven performance, providing strong value for money for asset owners.

    Contact us for more information >


    LifePlus life extension and overhaul programs

    LifePlus™ represents Vestas’ lifetime devotion to our customers. Currently, LifePlus™ includes tailor-made lifetime extension programs, fully customizable to fit your business case.

    Our lifetime extension programs can be combined with other Vestas service offerings, such as AOM® contracts and PowerPlus® upgrades.

    LifePlus™ is the result of our engineering expertise and experience in the wind turbine industry, combined with our passion for continuously optimizing your business case.

    A service partnership with Vestas means that you always have options to increase the return on your investment. If your strategy includes operating the turbines beyond design-life, LifePlus™ gives you access to 35 years of experience in optimizing turbine performance and effectiveness.

    With Vestas, you have a dedicated service partner for life.


    Improve the availability of your wind turbines and increase the annual energy production. TurbinePlus™ offers upgrades to improve turbine efficiency, enhance the protection of the turbines and to ensure full regulatory compliance.

    TurbinePlus™ products are divided into 3 categories, each of which can help wind asset owners bring their turbines up to date, either in terms of protection, compliance, or operational efficiency. These products are a result of Vestas' continuous development of solutions that make wind turbines better equipped to produce energy in an ever changing climatic and regulatory environment.


      TurbinePlus™ - Efficiency

      With our efficiency upgrades you can improve the availability of your turbines. The various upgrades ensure smooth and optimal operations under all conditions.

      TurbinePlus™ - Protection

      With our protection upgrades you can reduce the risk of damage to your turbines from external influences. The different upgrades help to prevent expensive repairs and downtime, while ensuring turbine operations.

      TurbinePlus™ - Compliance

      With our compliance upgrades you can ensure even better compliance with site-specific regulations, in most cases improving the availability of your turbine for production. In other cases it will minimize the environmental impact of your turbine.