It's not just a matter of 'solar is good'. A rational system generates the power it needs on the grid that needs it when its needed. Solar does none of that. And it seems obvious that a mishmash of solar panels on thousands of roofs pointed in random directions, is nowhere as efficient as a large solar farm. I've always thought of rooftop solar as 'energy theatre'.
> And it seems obvious that a mishmash of solar panels on thousands of roofs pointed in random directions, is nowhere as efficient as a large solar farm. I don't think that's obvious at all. Solar farms either use up expensive land, or have to be located so far away that transmission costs could be a significant percentage. Solar roofs get both land and structural support for free, thye're located much closer to wher…
Solar roofs are not getting anything 'for free'. Its a dangerous job; perhaps now the most dangerous of all (according to insurance estimates).
Roofs aren't engineered to support industrial installations at all. And indeed the coincidental accident of construction can leave them with little or no optimum roof space.