The dirty secret of clean energy is that while generating it is getting easier, moving it to market is not.
“The windiest sites have not been built, because there is no way to move that electricity from there to the load centers,” he said.
The basic problem is that many transmission lines, and the connections between them, are simply too small for the amount of power companies would like to squeeze through them. The difficulty is most acute for long-distance transmission, but shows up at times even over distances of a few hundred miles.