• Water-derived power or energy: •
Hydropower, derived from water •
Hydroelectricity, in electrical form • "Hydro",
AC mains electricity in parts of Canada •
Micro hydro, a type of hydroelectric power that typically produces from 5 kW to 100 kW of electricity using the natural flow of water •
Pico hydro, a term used for hydroelectric power generation of under 5 kW •
Small hydro, the development of hydroelectric power on a scale suitable for local community and industry, or to contribute to distributed generation in a regional electricity grid == Utilities ==