The issue focused on the cost of large-scale production of power in the face of the low cost of solar. The cost of wind and solar is very high, and the cost of power is very low. The big question is: can it be cost-effectively made? The US is the world's biggest market for wind and solar, and the number of those who are able to make a profit is huge. The big question is: can it be cost-effectively made?  		 