Transmission costs are no longer a significant percentage. Solar roofs are not getting anything 'for free'. Its a dangerous job; perhaps now the most dangerous

Transmission costs are no longer a significant percentage. 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.