Most grid power is not solar. So running local solar can save you money, cool off your house (cool attic in the shade of the solar), and decrease your peak load on the power grid which makes the grid more efficient.
Even in rural areas while cheaper to mount on the ground, you lose the savings of a cooler house.
Re:Solar Roof
by intrasight on Thursday May 11, 2017 @12:38AM
(#14313852)
That last sentence made no sense to me.
I'm not against using solar electricity because it can be made affordable but this idea is equivalent to the backyard blast furnaces in Maoist China. It's a waste of time and only useful for status signaling to your eco-chic friends.