They could always grind them up and use them in a blast furnace to generate electricity.
They should make them out of large palm leaves instead.
How about grind them up and use the waste in asphalt mixes for roads?
The problem is it takes more energy to grind them up then you get out of them.
Of course the real issue is the whole wind energy concept is a leftist lie. It’s far worse for the environment than coal or anything else. The answer is to just tell these leftists kooks to go to hell and build coal and nuclear plants.