Wind Farms - Old Bangers at 10 years! Clapped out after 15 years!

The Performance of Wind Farms

 in the United Kingdom and 

Denmark

Figure 1 shows the simplest variant [irrespective of the generating capacity of the wind farm] of the normalised age-performance curve for onshore UK wind installations together with the equivalent curves for onshore and offshore Danish installations.

Figure 2 illustrates similar curves but in this case the estimates are constructed by weighting each wind farm by its generating capacity, referred to as capacity-weighted. This gives a better representation of performance degradation per MW of generating capacity

 The Performance of Wind Farms in the United Kingdom and Denmark