"The drinking bird triboelectric hydrovoltaic generator offers a unique means to power small electronics in ambient conditions, utilizing water as a readily available fuel source," said Hao Wu ...

The generator ... such as water and heat. The hydrogen is provided by external cylinders and its fuel cells work in parallel with a battery module, with the former acting as the main power source ...

This whirlpool turbine can power ... for small-scale rural areas, but you need to live near a river. The turbine can be installed in most rivers and canals, using the flowing water to produce ...