Future energy Solar panels Solar panels create electricity through heating/ light by sun and most of the time they are assembled on the roof. Depending on the position of the sun and the panels, it gives a certain amount of electricity. On this moment you can use a part directly if there is sun or light when you need it that moment. If you don’t use at that moment you can deliver it to the electricity network. If you have delivered more at the end of the year than you have used, you get half in return than you pay per kWh. You can get subsidy for buying panels. The rate of return is about 7 years for all the costs for the panels and panels sustain about 15 till 20 years. After that you have to buy new panels. There are developments to create more electricity out of a panel. There are also a kind of smart batteries to collect electricity in private and if there is no sun / light you can use it from the batteries. The life time of the batteries is 8 years and the rate of return is zero. Solar collectors Solar collectors create hot water through heating/ light by sun and most of the time they are assembled on the roof. Depending on the position of the sun and the panels, it gives a certain heat to the water what is streaming through the collectors. The heated water you can store in a solar boiler for use later. Wokkels All over the country arises windmills. The can deliver electricity. It is an option but when there is not enough wind or the wind is to strong, they will not turn and the consequence is no electricity. Also a lot of birds will be killed and when you live near a big windmill, you hear an irritating noise and when the sun is low it creates a moving shadow in your house. Lots of people are complaining about it. There is a company who developed a ‘Wokkel’. I think it is more simple and more friendly. White stream Switzerland was the first country that used melting ice, captured it in a reservoir and by streaming it among the dam it creates a lot of electricity. When the rain falls on the roof and will be streaming, you can also create the same kind of electricity.