A study conducted by Auburn University sheds new light on how valuable shade trees are in reducing homeowners' electricity bills during the hot summer months. The study stated that Shade treees can reduce power bills by 11.4%. Professor David Laband in the School of Forestry and Wildlife Sciences states the electricity usage and costs will be 11.4 percent less if a house has just 17.5 percent heavy shade coverage. For more detals please visit the following link: link. Another great reason to plant more trees!!!!!