There's a fair number of comments on here that seem to have missed the point.
One issue with wind farms is that when the wind is good then their generation exceeds local demands and is effectively wasted. A large amount of thought is being put into storing this excess electricity. This company can use excess wind turbine generation to take CO2 out of the air and store it as aviation fuel to be used later. The RAF have tested the fuel to ensure it meets their demands. If it's also as good a fuel as the existing one (UL91) then what's the problem?