http://www.arborday.org/entergy
http://arborday.org/delmarva
http://arborday.org/ace
http://arborday.org/pepco
http://arborday.org/comed
http://arborday.org/PECO -enter your address to see if you qualify for 2 Free Trees from your Utility company. Those are the only links I could find, but you might be able to find more by entering your address in the link below:
http://energysavingtrees.arborday.org/#Home