Obstacle 1: Wind energy is dependent on large subsidies.
All renewable energy is. Most big wind and solar farms are backed in some way by the government.
Obstacle 2: Wind energy is more variable than electricity produced by fossil fuels and nuclear.
This is also true for solar. Variable power requires a much smarter grid as well as energy storage. We don’t have that now. Instead, “we’re a superpower with a Third World grid.”
Several of the other obstacles also include the inadequacy of our grid.