Labor and permitting costs. Those are already a large part in housing costs, and rooftop solar panels? That's both roofing work and installation of advanced el

Labor and permitting costs. Those are already a large part in housing costs, and rooftop solar panels? That's both roofing work and installation of advanced electric equipment. And the market doesn't seem to have that many people who base their buying decisions on whether the house has solar panels installed. Labor costs are going to stick around until we get humanoid robots to work well. But the permitting situation could sure benefit from a lot of regulation being purged.