The tree dealt with 1000s of sq ft of canopy, that is no longer there, so 80 sq ft of turbine is a minor load for the tree and roots. the bottom 40 ft of tree still have all the branches to keep the tree alive, and is beginning to watersprout on the top half already. I will have to go up and do some minor trimming from time to time. The tree is about 36 incher in diameter at the bottom, and 10 inches in diameter where i topped it.
but thanks for your concern
Dustin