Energy & Green Tech news

Engineering

Energy-efficient device uses solar power to turn seawater into fresh water

Researchers at the University of Waterloo have designed an energy-efficient device that produces drinking water from seawater using an evaporation process driven largely by the sun.

Energy & Green Tech

Self-charging energy harvester generates electricity from seawater

An innovative energy harvester, capable of continuously producing electrical energy by utilizing the movement of the sodium ions contained in seawater, has been developed. This technology is anticipated to find applications ...

Energy & Green Tech

Computer engineers pioneer approaches to energy-efficient supercomputing

As high-tech companies ramp up construction of massive data centers to meet the business boom in artificial intelligence, one component is becoming an increasingly rare commodity: electricity.

Business

South Africa's green hydrogen hub: EU grants not nearly enough to get industry going, say chemical engineers

South Africa is poised to become a major player in the global energy transition, thanks to its vast renewable energy resources (sun and wind) and its plans for green hydrogen production.

Energy & Green Tech

Silver State may become solar state under new federal plan

The U.S. is preparing for a gargantuan spike in the amount of energy it harnesses from the sun, and vastly changing the desert landscape of the Silver State's public lands is a major component of that vision.

Energy & Green Tech

Power supply: Understanding unstable grids

A sustainable energy supply requires the expansion of power grids. However, new transmission lines can also lead to grids becoming more unstable rather than more stable, as would be expected. This phenomenon is referred to ...

Engineering

Land use matters as communities cut carbon emissions

With no-wind-turbine signs on roadsides next to cornfields, it's hardly surprising that land use is a thorny issue for renewables. But how much land do different zero-carbon technologies really use?

Energy & Green Tech

'Bio-batteries' enable us to store solar and wind energy

Up until now it has been a challenge to store the energy we generate when the sun is shining and the wind is blowing. But researchers at a laboratory in Trondheim in Norway have succeeded in doing just this—and entirely ...

Energy & Green Tech

Hazy timeframe for reaching electric plane era

Recent test flights suggest the era of electric airplanes is coming closer, but aviation experts caution that achieving commercial use hinges on regulatory approval which has an unknowable timeframe.

Energy & Green Tech

On the way toward CO2-neutral aviation

Traveling by airplane without emitting additional CO2—this would be possible with synthetic fuels produced from water and ambient air with the help of renewable energy. However, huge quantities would be required. A new ...