It's cheap in the places that are windy. One big challenge (mentioned tangentially in the article) is in moving this cheap energy from the windy center of the continent to the populated coasts.
The coolest project to tackle this problem (in my opinion) is Tres Amigas, a superconducting interchange between the west coast grid and the (wind-heavy) Texas grid.
The coolest project to tackle this problem (in my opinion) is Tres Amigas, a superconducting interchange between the west coast grid and the (wind-heavy) Texas grid.
https://en.wikipedia.org/wiki/Tres_Amigas_SuperStation