Production, storage and use of electricity from natural energy sources such as water, wind and the sun are graphically illustrated using various models and numerous experiments in this hands-on kit. Included are two, solar modules which guarantee more power and include a variety of attachment possibilities to ensure flexible use in the models. The Gold Cap included for power storage can release the stored power at a slower rate. This helps students understand energy forms of the future. This set includes: solar motor (2V), and two solar modules (1V; 400 mA),Gold Cap power storage device, LED, ON/OFF switch. Also includes full color assembly instructions along with multi-language instructional activity book. For greater functionality, the Fischertechnik Fuel Cell Kit (available separately) can be added to build other models and operate them with a fuel cell.