Posted on 2014/02/042014/02/04 by EditorSepp Hasslberger: Gravity Battery05 Energy Share 0 Tweet 0 Share Email Print 0Shares Sepp Hasslberger What a great idea! Store intermittent solar and wind energy in gravity by using weights. Re-convert into electricity when needed. Mechanical battery. Simple and environmentally friendly. Gravity Battery Concept Explaining the gravity battery concept, with detailed illustrations on storing energy using simply the force of gravity.