One of the obstacles to meeting this challenge is the design of our government, namely federalism. Most of our power grid is developed at the state level. As the New York Times notes,
in most states, rules used by public service commissions to evaluate transmission investments discourage multistate projects of this sort. In some states with low electric rates, elected officials fear that new lines will simply export their cheap power and drive rates up.So, if we are going to take advantage of wind energy, Congress will first need to get involved to build a power grid to handle the energy produced.
The Energy Challenge - Wind Energy Bumps Into Power Grid’s Limits - Series - NYTimes.com