Japanese startup Yumes Frontier has developed a 2.7 kW micro-hydropower system that can be used in some buildings. It can also be combined with solar to provide power for lights and surveillance ...

You’ve felt it when your electric bill jumps again — something about the system just isn’t working for most American households. So you started thinking beyond just paying the utility every month.

Rain falls every day in many parts of the world. Most people see it as simple weather. However, researchers in Singapore now see it as a powerful source of clean energy. They have developed ...