Dear Wrenches, I'm looking for 3 Sharp 170's, 175's or similar to add to an existing off-grid system (existing are NT-170UC1). If you have any leads, please contact me off list. Thanks, Bruce Erickson Mendocino Solar Service PO Box 1252 Mendocino, CA 95460 707-937-1701 707-937-1741 fax bruce at mendocinosolar.com