Letters of Exploration can be submitted online, by mail or by fax.
By Mail: Please send signed letters to:
Cook County Community Solar Site Discovery
322 S. Green Street
Chicago, IL. 60607
By Fax: 888-335-3261
Online: Please attach a signed PDF version of the Letter of Exploration. Property owners can submit one letter for multiple properties. Clearly list the properties represented by this Letter of Exploration. Complete the form below. Select the “Browse” button below and search for your completed letter and submit.