How can ecological electric power be produced? "Renewable energies" will become our most important suppliers of energy in the future. Production, storage, and the use of electricity from natural energy sources such as water, wind, and the sun are graphically illustrated using various models and numerous experiments. These two new solar modules not only guarantee more power, the many new attachment possibilities ensure flexible use in the models. The Gold Cap included for power storage can release the stored power at a slower rate. This helps children understand energy forms of the future.