Solar panels that stick to your roof with adhesive? yep, that Lumeta Powerply from DRI Energy.
Each 8′ x 4′ panel puts out a peak power of 380w an weighs just 54lbs, so they can be fixed to many roofs without additional support or reinforcement. Of course that 380w output will be reduced depending on how much sun you get and if the panels are aligned directly towards the sun (i.e. not on a flat roof).
Here’s a video showing the installation of 6 panels (2.28Kw) in just over 30 minutes.