It is surprising to me that windmills seem to have such a large structural headroom with this "50 year gust". Farms of windmills around me of 1000's of units have had zero collapses. When your business is offshore wind farms, why not remove all the headroom, make the structure far cheaper and lighter, and aim for say 25% of windmills to collapse around 30 years? The cheaper capital costs will surely pay for increased decommissioning costs of collapsed windmills and loss of production 30 years later after compounded cost of capital.