Project Details


This project aims to improve the up-time in wind turbines by improving the reliability of the hydraulic system. The goal is to increase the up-time by >15% in the hydraulic system, thereby increasing the energy production from new turbines with hydraulic pitch by >5330 GWh/year by 2027. This will result in a lower price on the Levelized Cost of Energy (LCoE) and positively affect the CO2-emission in the range of 2.53 Mio tons/year.

This is obtained by developing and improving methods to predict when and why a component is failing. The knowledge generated will be used to more accurately predict the remaining lifetime, when a system needs servicing, for online monitoring of the systems to plan preventive service (so-called predictive maintenance), and for lifetime design optimization.

For the involved partners, Danfoss Power Solutions, Vestas, Siemens Gamesa, Hine, and CC Jensen, the project's benefits will pose a combined value of >2.1 mia DKK over a five year period. Besides this, there will be a very substantial benefit for the project partner Vattenfall, whose long-term benefit far exceeds that of the other partners combined in terms of net value. However, for Vattenfall and other operators, the main value comes after the initial five-year warranty period, by minimizing scheduled and non-scheduled exchange of components and oil during the continued operational time of additional +30 years.
Effective start/end date01/09/202231/08/2027

UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This project contributes towards the following SDG(s):

  • SDG 7 - Affordable and Clean Energy


  • Fluid power
  • Hydraulics
  • Reliability
  • HALT
  • Condition Monitoring
  • Fault Detection and Diagnostics
  • Fault Tolerant Control


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