Tensions surge over Serbia's small hydropower plants

Deep in the isolated forests of eastern Serbia a digger gouges a channel through the trees for a pipeline to siphon river water, as the coal-reliant country's efforts to clean up its energy habit triggers a hydro "gold rush".

Can Switzerland succeed without fossil fuels?

If we want to get rid of fossil fuels nationwide, there is a lot to do. It will be a generation project, that much is clear. Empa researchers Martin Rüdisüli, Sinan Teske and Urs Elber have now calculated how long and steep ...

Clean energy from local producers

Is it possible to boost sales of locally produced solar energy by allowing households to trade it through a peer-to-peer platform? The year-long Quartierstrom research project in Walenstadt is investigating how energy markets ...

Carbon-neutral fuel made from sunlight and air

Researchers from ETH Zurich have developed a novel technology that produces liquid hydrocarbon fuels exclusively from sunlight and air. For the first time worldwide they demonstrate the entire thermochemical process chain ...

Producing electricity at estuaries using light and osmosis

Most renewable power technologies are weather dependent. Wind farms can only operate when there's a breeze, and solar power plants rely on sunlight. Researchers at EPFL are working on a method to capture an energy source ...

NASA's OCO-3 measures how plants grow—and glow

When plants take in too much energy, they don't get fat—they lighten up. They absorb more sunlight than they need to power photosynthesis, and they get rid of the excess solar energy by emitting it as a very faint glow. ...

A decade-long quest to build an ecosystem in a room

Yesterday the MELiSSA pilot plant at the University of Barcelona celebrated 10 years spent demonstrating the ideal technologies to recycle waste from space missions into air, water and food.

Walz sets goal: 100 percent carbon-free electricity by 2050

Gov. Tim Walz set an ambitious goal Monday for Minnesota to get 100 percent of its electricity from carbon-free sources by 2050, though his plan was short on specifics of how to meet that target.

How plants expand their capacity to use solar energy

Green plants capture light that spans the visible solar spectrum, and while a broad spectral range is required for sufficient absorption, the process requires energy to be funneled rapidly and efficiently downhill to drive ...

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