OEM rated power boosting inactive

Understanding the check "OEM rated power boosting inactive" and what it identifies

What is the purpose of the turbine issue check?

  • An enabled OEM rated power boosting feature is not changing the rated power for a given turbine.
  • If power boosting is not operating as expected, then the turbine’s actual rated power performance is lower than the intended performance, resulting in lower AEP. Not sure if you should have power boosting added to your site? See our exploration as to whether power curve upgrades are worth it.

Can you see this in 10-min data? 

  • Yes, this can generally be seen in 10-minute data

What does this look like / How do you identify this issue?

  • The identification of this issue will depend on the power boosting strategy that has been implemented on the turbine.  In this example: Power boosting is expected to be active for temperatures below 25° C increasing the turbins rated power from 3 MW to between 3.1 and 3.15 MW.

Here is the rated power distribution for temperatures >26C. For temperatures greater than 25° C, the rated power distribution (> 15 m/s) is uniform across the farm

Whereas here is the rated power distribution for temperatures <24C. For temperatures less than 25° C, the rated power varies significantly from turbine to turbine. Some turbines are not seeing a significant boost (A5, C10, B16, B17, C22, C23, C26).  Correction of this issue resulted in a 0.3% AEP improvement for the farm (note it operates in a very high temperature geography so this would be even higher in more temperate climates!)

How can you tell the issue is corrected?

  • This issue is corrected when the turbines behave uniformly at similar temperature ranges and conditions.