Energy and consumption in electrical devices.
3 telecommunications devices requiring different levels of power must be supplied with electricity in order to operate. In front of each of these devices, a crank can be used to produce electricity by means of mechanical energy. Given their different power requirements, will the same effort be needed? A watt meter on the cranks shows the energy provided.
Solar and wind energy.
The self-powering Energy Hut is equipped with solar panels and a windmill. An energy meter shows the instant energy production generated by the panels and windmill. Two batteries store the energy produced and redistribute it when there is no wind or sun.