Idea 3 1 Differentiated prices for food and drinks Anyone bringing their own dishes for food and drink will pay less.
Idea 0 0 The private multifunctional solar roof The light and multifunctional solar roof can be used privately for many purposes and help to save electricity.
Idea 7 0 The mobile Solarlounge The Solarlounge is a mobile workplace for the outdoors, thus avoiding professional traffic and can work in a beautiful environment with renewable energies close to nature.
Idea 10 0 The Solarchopper The Solarchopper is an eco-friendly and comfortable electric bike with regenerative energies. It also increases the period of use, as the solarroof has a protection function against the sun and rain.