The solar roof could finally become a reality thanks to GAF’s nailable solar shingles - The Verge
"GAF Energy thinks it has a simpler solution to the solar roof. It’s built a solar shingle, one that can be nailed down in packs much like the everyday shingles you’d use when repairing or replacing your normal, non-solar roof.you literally drive nails through a three-inch nailing strip, overlap the top of that shingle with the bottom of the next one, and repeat