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Shower Power is a water powered hydroelectric bluetooth speaker. You plug it into the shower and never charge it again. Forever.

Vortex Hydrokinetics' SETUR portable hydraulic turbine generates energy without the use of blades. Here's how it works.

There is a wealth of untapped hydroelectric potential: Gigawatts and Gigawatts of energy flowing through pipelines, irrigation canals and aqueducts.

The water coil starts operating after 14 long years of construction. And never before can it be of much use to Europe.

The largest floating solar park in Europe, on the hydroelectric basin of the Alqueva dam in Portugal, is ready to produce energy as early as July.

A micro hydroelectric generator for small devices and remote places? Ricoh develops it under the banner of 3D printing and sustainability.

From abandoned mines to hydroelectric plants. The project is ambitious, and China has a lot of places to use - but a lot of attention is needed.

A "river" hydroelectric turbine makes energy collection lean and efficient for small communities close to waterways.

Scottish startup Gravitricity announced this week a working scale prototype of a battery that uses gravity to store energy.

The new report from the IEA, the International Energy Agency, goes beyond its rosiest forecasts