NEBRASKA — Black Hills Energy is celebrating National Energy Awareness Month this October, by offering a limited number of free trees to customers through our Energy Saving Trees partnership with the Arbor Day Foundation. When planted the right way and in the right places, trees can even help homeowners save on annual energy costs. Through an online educational and mapping tool developed by the Arbor Day Foundation, residents can reserve a free tree at blackhillsenergy.com/trees. About the Arbor Day FoundationThe Arbor Day Foundation is a global nonprofit inspiring people to plant, nurture, and celebrate trees. The Arbor Day Foundation is a 501(c)(3) nonprofit pursuing a future where all life flourishes through the power of trees.