Brackets are included, as described by hauvol. When mounting on walls, roofs or other surfaces, however, it is advisable to make a separate substructure to ensure sufficient ventilation of the modules, as the distance between the mounting brackets is not sufficient for this - the performance of cooler modules is considerably greater.
WR yes, panels yes, if you want to drill lots of holes in the wall. Mounting brackets for the panels are included, 8 per panel, which can be screwed onto a substructure or directly into the wall with 2 screws.