The article is badly one-sided. Some misconceptions were already mentioned, here are more which comes to my mind:
"Of course, this assumes the concurrent deployment of a nationwide Smart Grid that could store and disburse the variable sources" -> the price is extreme and not calculated. Furthermore, you would still need 100% backup in traditional sources.
"it will create lots and lots of permanent jobs" -> therefore badly increases the price of the power generated
"projected growth in electric vehicles" -> thus further increasing the demand for electricity
"Of course, this assumes the concurrent deployment of a nationwide Smart Grid that could store and disburse the variable sources" -> the price is extreme and not calculated. Furthermore, you would still need 100% backup in traditional sources.
"it will create lots and lots of permanent jobs" -> therefore badly increases the price of the power generated
"projected growth in electric vehicles" -> thus further increasing the demand for electricity