Novel energy storage materials flow from the white containers into a fuel-cell like device in the foreground, where they generate electricity.
It would be great if utilities would be able to store the power that wind farms generate at night when no one wants and then be able to use it when the demand is high during the day. But conventional battery technology is so expensive that it only makes economic sense to store a few minutes of electricity, enough to smooth out a few fluctuations from gusts of wind.
