Those flexible photo voltaic shingles are manufactured by United Solar Systems Corp in Troy, MI. There is quite a bit of information up on Bob's site about them. Click on Yonkers Blitz Build on the homepage and then on Yonkers, the show summaries. Scroll down to #1005 for hypertext links for photo voltaic shingle details and background on Global Solar where the pv film for the shingles is produced. For even more, visit the UniSolar website at www.ovonic.com/unisolar.html or call them at 1-248-362-4170.