Energy & Green Tech

Device generates light from the cold night sky

An inexpensive thermoelectric device harnesses the cold of space without active heat input, generating electricity that powers an LED at night, researchers report September 12 in the journal Joule.

Energy & Green Tech

Photovoltaics could cool our homes with the power of the sun

The International Energy Agency has dubbed increased global cooling demand as one of the most critical blind spots in today's energy debate. A new study titled "Meeting Increased Global Cooling Demand with Photovoltaics during ...

Energy & Green Tech

Europe's future is renewable

Europe has enough solar and wind resources to meet its electricity demand entirely from renewable sources. A new study by researchers at the Institute for Transformative Sustainability Research (IASS) in Potsdam shows that ...

Energy & Green Tech

Pioneering 3-D printed device sets new record for efficiency

A new 3-D printed thermoelectric device, which converts heat into electric power with an efficiency factor over 50% higher than the previous best for printed materials—and is cheap to produce in bulk—has been manufactured ...

Energy & Green Tech

U.S. energy use rises to highest level ever

Americans used more energy in 2018 than in any other year, according to the most recent energy flow charts released by Lawrence Livermore National Laboratory (LLNL). Overall total energy consumption rose to 101.2 quadrillion ...

Energy & Green Tech

Shining a light on electricity reliability in Sub-Saharan Africa

More than one billion people do not have access to electricity, and gaining access is a critical part of improving economic and human health outcomes in developing countries, where electrification rates can be as less ...

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