Energy & Green Tech

Artificial intelligence could secure the power supply

Reza Arghandeh from the Western Norway University of Applied Sciences (HVL), Hossein Farahmand (NTNU) and their team are studying how hydropower producers can make better use of natural resources and flex with the market ...

Energy & Green Tech

Lights out? Swiss brace for looming power shortages

Switzerland is among the world's wealthiest countries, but its reliance on Russian gas and French nuclear power—both in short supply—has it bracing for power shortages and even blackouts this winter.

Energy & Green Tech

Why we need hydropower for a resilient grid

America's most critical piece of energy infrastructure—the grid—is more vulnerable than ever before. The reasons are two-fold: a shift in power source mix is affecting grid stability, combined with an uptick in natural ...

Engineering

Floating solar's potential to support sustainable development

A study, published in Nature Energy, is among the first to explore the floating photovoltaics (FPV) at the continental scale, finding that FPV installed at existing major reservoirs could produce 20–100% of the electricity ...

page 2 from 5

Hydropower

Hydropower, hydraulic power, hydrokinetic power or water power is power that is derived from the force or energy of falling water, which may be harnessed for useful purposes. Since ancient times, hydropower has been used for irrigation and the operation of various mechanical devices, such as watermills, sawmills, textile mills, dock cranes, and domestic lifts. Since the early 20th century, the term is used almost exclusively in conjunction with the modern development of hydro-electric power, the energy of which could be transmitted considerable distance between where it was created to where it was consumed.

Another previous method used to transmit energy had employed a trompe, which produces compressed air from falling water, that could then be piped to power other machinery at a distance from the energy source.

Water's power is manifested in hydrology, by the forces of water on the riverbed and banks of a river. When a river is in flood, it is at its most powerful, and moves the greatest amount of sediment. This higher force results in the removal of sediment and other material from the riverbed and banks of the river, locally causing erosion, transport and, with lower flow, sedimentation downstream.

This text uses material from Wikipedia, licensed under CC BY-SA