Future of Solar Power

When I went to Israel last year, all the houses had rooftop solar water heaters. The technology is simple and it saves money and cuts down on greenhouse gas. So, why don't we have them? Perhaps because we are ruled by big oil?

In the future there are many round bullet buildings, but it appears that solar panels are not popular. Solar cells are very expensive and most people do not want an ugly house.

Still, the future of solar power is that the technology will grow cheaper with time, but we must work hard to make it happen.