Well I would hope that even most of the tree huggers have figured out the fallacy of solar panels on roofs. Maybe, maybe not...
I have solar and have followed its progress for years. My system is on the ground. In seven years the system (what's allowed by law/power company and not more) of 42 - 300W panels has returned 41200KW to the grid. Grid usage (purchase) has been 14000KW or 166KW average per month (around $70.). Winter and a lot of glass in our house being the reason. It's a privilege to have and payback was less than five years. No fallacy in having them. You may not like 'em as is your prerogative but for this location they work well.
Solar costs have dropped by roughly 84% since 2009. It is now a cost-effective investment with a typical payback period of 4–9 years.
While manufacturing has a pollution impact, panels make up for their manufacturing emissions in just 4-8 months. Party on.
I'm anything but a tree hugger but I'm trying to be more of one. Would I get another street rod? Been there. Done that.

