DTE Energy launches aggressive tree trimming program Ground to Sky program allows the utility to take down trees on private property Check out this story on HometownLife.com: http://www.hometownlife.com/story/news/local/birmingham/2014/12/14/dte-energy-launches-aggressive-tree-trimming-program/20309555/ The program, called Ground to Sky, allows the utility company to cut down any tree that poses a threat to the company's overhead wires or equipment - even if the tree is located on private property. The program is already underway in Bloomfield Hills.