Germany expects 40 to 45% of the electrical power consumed in Germany to be generated from renewable resources by 2025. That number is anticipated to grow to 55 to 60% by 2035. That’s good news for greening the electrical grid, but renewables still require some form of storage medium, such as a batteries, in order to compensate for the fact that the output from solar panels and wind turbines is not as constant and predictable…