http://science.nbcnews.com/_news/20...ion-batteries-to-make-power-grid-smarter?lite While this rates as only a baby step, at least it IS a step. It's the first bit of U.S. research designed to integrate the somewhat unreliable green energy sources smoothly into the current infrastructure that I'm aware of. One industry that used a similar approach - battery backup until diesel engine or turbine-driven generators could come online - was the telephone utilities. At one point quite sometime ago, the degree of protection provided by that method reached nearly 90% nationwide but today is probably closer to 40%. An unexpected result of competitive cost-cutting following deregulation. At any rate, this "new" approach is similar to something used decades ago. But the really good news is that it doesn't stop there. And with the government funding the project, there are certainly new innovated approaches expected to be developed.