Oil headed for 70 bucks s barrel. Here we go.

monkey44 wrote:
OK, how about those NY apartment buildings twenty-thirty stories, a hundred apartments, a hundred families. Put one solar complex over the entire roof, you might get enough power to feed electric to the top ONE floor or even TWO, or THREE, what do the other ninety families do?

Well, they bring in power from an external grid?? And that cost as much to build and maintain as any other power source. We do not have perpetual power production anywhere ... It costs use and maintenance fees, and soft labor, and engineers. That's not inexpensive, even if renewable and sustainable. Unless you individually grow your own groceries and create your own power, there will always be a cost equation.

Actually there is no need to expect rooftop solar to be the 100% solution. This is not metric electricity... solar power can flow through the existing grid just fine.

Some local solar would reduce the need to improve the existing grid as power demand grows.

Yes solar does come at a cost and that cost is lower than coal.