This is not a complete list of Ohio businesses that have done renewable energy projects.  If you're aware of businesses that have done solar, wind, or a heat pump, please let me know at signit2@hotmail.com so thay can be added to the list.

Akron

Athens

Baltimore

Cincinnati

Cleveland

Cleveland Heights

Columbiana

Columbus

Dayton

East Canton

Hilliard

Loveland

Milan

New Philadelphia

Oberlin

Oregon

Piqua

Reynoldsburg

 Sandusky

Scio

Swanton

Wilkesville

Yellow Springs