if this math is correct, WTF are we waiting for?

Over at MOTHERJONES in an article Iraq 101, the statement was made that it is estimated that it will cost $20 billion to rebuild the oil industry in Iraq but only $6.6 billion to provide every home there with solar power. After Iraq can we save the US. from the evils of oil next? Oh, I forgot, capitalism means never reaching the point of economic freedom for the masses!