Hydroelectric generator can be carried like a backpack

Bourne Energy, a company based in Malibu, California, specializes in a variety of hydropower systems. While most of its technology is for large-scale applications, with multiple units generating energy on the megawatt scale, ...

Climate impact of hydropower varies widely

Hydropower is broadly considered to be much more environmentally friendly than electricity generated from fossil fuels, and in many cases this is true. However, a new study reveals that the climate impact of hydropower facilities ...

IEA: Global renewable energy growing fast

Renewable energy is growing fast around the world and will edge out natural gas as the second biggest source of electricity, after coal, by 2016, according to a five-year outlook published Wednesday by the International Energy ...

EarthTalk: Are hybrid cars really better for the environment?

Dear EarthTalk: If you have an electric or plug-in hybrid car, you're paying for electricity rather than gasoline all or most of the time. How does that cost compare to a gas-powered car's cost-per-mile? And since the electricity ...

Ultrasound can save fish in hydropower rivers

The phenomenon of gas supersaturation occurs when air enters water-filled hydropower inlets and is then exposed to high pressure. When this water is subsequently released into the river below the hydropower plant, it's almost ...

Toward more fish-friendly hydropower plants

Over the course of the EU project FIThydro, research and industry partners studied the ecological impact of hydropower plants. ETH Zurich's Laboratory of Hydraulics, Hydrology and Glaciology (VAW) has developed a protection ...

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