Keeping track of the experience loads can be of great value for wind energy. If for instance lower loads are found than expected, the lifetime of a wind turbine could be extended beyond its design life. This will lead to a reduction in the cost of energy. Another advantage of so-called load monitoring is that design loads can be evaluated. This could lead to the conclusion that site conditions are different than expected, which means that either the turbine’s operation needs to be altered or the design can be changed for future turbines. Furthermore load monitoring gives insight into turbine behaviour.