What would be the fun in that? Plus what about all the Charmin shareholders....
More fun: ok, I can speculate on the positive side, all without any real information, and therefore, completely meaningless:
a. Solar panel shingles could be as productive as regular panels.
b. They would obtain this productivity by simply engineering existing solar panel products to be code-compliant for the shingle layer (i.e., replacing and becoming the shingle layer). They would not try to make a shingle-looking like wooden shake, ceramic tile, or tar with embedded pebble shingle; they would make a shingle that looks like, is, and acts like, a solar panel. This is essentially taking an as-is solar panel and doing the necessary re-engineering (from the ground up) to make it shingle-worthy as the top layer over a water barrier. Then, it would be marketed and sold as a code-compliant manufacturer-specified shingle, despite the fact that it is also doubling as the same materials and product that would be used in any rack-mounted solar panel setup. This would allow any contractor, architect, engineer, or handyman to throw these newfangled solar panel shingles up on a reroof or new construction, with the waterproofing underneath, and proper flashing for interfaces to the fireman access zones material and other penetrations and interfaces, as usual, per manufacturer specifications (tested, listed, and codified). This engineering would also provide the fireman access material that looks like solar panels (they could even re-engineer the solar panels to be fire accessible, so that the solar panel shingles can go to the crest of the roof, or alternatively they could get some fireman compliant solar-panel looking shingle material to fill that gap). This is all a very big deal in terms of Underwriters Laboratory (UL) listing, fire code listing, and manufacturer engineering specifications, and therefore would go a long way toward being installed on every roof everywhere for new construction and reroofings, because it would keep construction costs way down (because they wouldn't need special engineering for the fitness for purpose, and they could skip the entire old fashioned shingle layer in new roof since the solar panels are now specified shingles, thus saving hugely on engineering, cost, and complexity, as well as weight), but without having to do a huge amount of re-engineering to make it look like a god darned old-fashioned shingle. Solar panels are the new look. Get used to it. Face it. Live it. Love it. Or hate it and do it anyway. Tar shingles are ugly anyway; who wants to have something look like the way it was, when the new way is better, and therefore would be better to look at since we would appreciate it more? The biggest mistakes with solar panels as shingles are, on the one hand, trying to make them look like outdated shingles, or on the other hand, not taking the shingle specifications seriously (we built specifications for building products upon centuries of millions of peoples' engineering and experience; any new shingle would have to have competent engineering, for every little facet of this aspect of building; you can't shoehorn it in, but you'd be surprised once you embrace the full building materials engineering aspect of the design how easy it will be to finally engineer such a building material with the knowledge and materials you already posses given your design purposes and truth in spirit).
c. They would not follow in the footsteps of other solar shingle manufacturers (see (b)).
d. No one on the planet except me and exactly 1 other bold leader within SCTY has the idea that I stated in (b), and therefore, they will have a clear competitive advantage.
(Oops.)