Abstract
The picohydroelectric power generation system uses a small river and a small waterfall which there is anywhere. Because it is small and its setting is simple, this small electrical generator is economical. It can use this generator by flow of the water for 24 hours. When it is long time, it is by no means inferior to solar energy. It can use this small generation system as a power supply in case of the emergency. As for this picohydroelectric power generation system, stable electricity of around 10 watt can occur.
