The intention of this calculator is to give you a quantitative yet quick, simple idea on the value the Brüel & Kjær Vibro condition monitoring system (CMS) can deliver to your specific wind park. As it is based specifically on our dedicated CMS solution, it cannot be used generically for other CMS applications. There are two primary calculations:

1. Payback – The number of years after the CMS has been implemented such that the cumulative potential maintenance and uptime savings due to monitoring minus the cumulative capex and yearly diagnostic service costs is zero.
2. Net savings over remaining life – The total potential maintenance and uptime savings due to monitoring minus the cumulative capex and yearly diagnostic service costs over the remaining life of the wind turbine (up to 25 years) since the CMS has been implemented.
Both calculations utilize an estimated yearly maintenance and downtime savings value based on our long experience in wind turbine monitoring. This value is adjusted by various factors that you specify when setting up the program, which are also based on experience.

ASSUMPTIONS
• The value of the money at the time of the CMS commissioning is considered the same for the remaining life of the wind turbine
• Increased production bonus premiums or penalty savings are not included in the calculations
• If there are several different sizes of wind turbines in the park, only a single averaged value can be used in the calculations

We encourage you to contact Brüel & Kjær Vibro if you have any questions or comments on this calculator, or if you would like support in making your own more detailed calculations.

DISCLAIMER The calculated results are only intended to give you a rough idea on the economic benefits of using our CMS. We cannot be held responsible for the accuracy of these results, or any discrepancy these results may have with respect to other calculations done for similar applications.