Energy & Green Tech

Dye-sensitized solar cells that adapt to different light conditions

Solar cells made of semi-transparent photovoltaic (PV) materials typically have a fixed optical transmission, which results in either high transparency or high efficiency, but rarely both. In order to perform optimally when ...

Energy & Green Tech

The electric future of autonomous vehicles

Autonomous vehicles come at a cost: increased energy use. Some suggest that these increased power needs are significant enough to drastically reduce vehicle range, eliminating the possibility of electric autonomous vehicles. ...

Energy & Green Tech

AI's carbon footprint problem

For all the advances enabled by artificial intelligence, from speech recognition to self-driving cars, AI systems consume a lot of power and can generate high volumes of climate-changing carbon emissions.

Energy & Green Tech

Coal reaching 'tipping point' vs renewables: analysis

Renewable energy such as wind and solar projects are already cheaper to build than it is to continue operating 40 percent of the world's existing coal fleet, according to analysis released Tuesday.

Energy & Green Tech

New forecasting model improves solar panel performance

A new mathematical model for predicting variations in solar irradiance has been developed at Uppsala University. It may help to promote more efficient use of electricity from solar energy. In tests of various data models, ...

Energy & Green Tech

France pulls plug on country's oldest nuclear plant

France's oldest nuclear power plant will shut down on Tuesday after four decades in operation, to the delight of environmental activists who have long warned of contamination risks, but stoking worry for the local economy.

Energy & Green Tech

UN agency: North Europe radiation likely linked to reactor

The U.N. nuclear agency said Friday that slightly elevated levels of radioactivity detected in northern Europe likely were related to a nuclear reactor that was either operating or undergoing maintenance, but it's still unclear ...

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