When it's up to the scientists of TU Eindhoven, you will have a salt battery in your attic in a few years to warm your house with. A device that can both give off and store energy. This world needs an invention like that. Since the energy crisis is becoming more and more problematic, and we have to be more sustainable and efficient with our precious energy. In this episode we visit Joey Aarts. He explains how something as simple as salt can help us through the energy crisis.