An Alternative to OPEC

Apparently, nearly anything can support a solar cell:

New solar cells developed by Massey University don't need direct sunlight to operate and use a patented range of dyes that can be impregnated in roofs, window glass and eventually even clothing to produce power.

When they're built into asphalt or concrete, we can have electrified roads. We'll need batteries anyway for night use, but those batteries won't have to be portable.