“The grid that we have wasn’t designed for what we do with it now, let alone what we want to do with it, with all sorts of renewables,” says Seth Blumsack, an economist who studies the grid at Penn State University.

We've figured out how to get buy-in on renewables and make their energy cheap, but before we can do anything more, we need to update the grid. Using Amtrack infrastructure to build a high-speed bullet train isn't going to work. Why do we think our shiny new renewables will be the answer if we have to facilitate them to antiquated infrastructure? The focus needs to shift.