An unexpected solution to this is the growing numbers of electric cars that are plugged in to charging units during this unstable time. With the addition of a small gadget, these cars can send electricity back into the grid when needed. While the cars will still charge, they will do so in fits and starts, evening out the peaks and valleys of the power supply.
This won't work until there are a lot of electric cars out there with this capability but pilot programs are starting up. Pretty cool, huh?