Hydroelectric

Hydroelectric turbines may indeed be a non-polluting source of electricity, but their spinning blades can nonetheless kill larger fish that are passing through. A new type is designed not to do so, while maintaining a compact form factor.

There's a lot of water constantly moving through the municipal pipelines of most major cities. While the water itself is already destined for various uses, why not harness its flow to produce hydroelectric power? Well, that's exactly what Lucid Energy's LucidPipe Power System does.

Migrating salmon in the Pacific Northwest are set to be helped on their journey by Sensor Fish. Developed by PNNL, these devices record and analyze the physical stressors faced by the fish on their trek and provide hydroelectric dams with data to become more fish-friendly.

The Air HES concept claims to yield both clean water and electricity by using a high-flying airship to harvest and condense water vapor which it then uses to spin up an electric turbine generator to create power.

When we complain about the rain, other people will often say "Yeah, but it's good for the plants." Well, thanks to a microturbine-based system created by three students from the Technological University of Mexico, it's now also being used to generate electricity for use in low-income homes.

Norwegian researchers have filed a patent to store potential energy at the bottom of the sea.

Japanese company Ibasei has developed a compact hydropower generator that can be easily installed along a river or waterway to deliver 250 W of electricity.

A new study details one scenario to completely convert the world to clean, renewable energy sources in 20 to 40 years using technology available today at costs comparable to conventional energy.

Bourne Energy has unveiled the military and civilian Backpack Power Plant (BPP) - an ultra-portable hydroelectric generator which can create clean, quiet power from any stream deeper than four feet.

The world’s largest working hydro-electric wave energy device has been officially launched in Scotland. Known as ‘Oyster’, the device is, at present, the world’s only hydro-electric wave energy device producing power.

A new milestone for marine energy was achieved recently when UK based Wave and Tidal Technologies company Aquamarine Power Ltd signed a 1,000 MW (1 GW) Development Agreement with the renewable energy development division of Scottish and Southern Energy, Airtricity.