Solar panels repay their energy 'debt': study
The climate-friendly electricity generated by solar panels in the past 40 years has all but cancelled out the polluting energy used to produce them, a study said Tuesday.
The climate-friendly electricity generated by solar panels in the past 40 years has all but cancelled out the polluting energy used to produce them, a study said Tuesday.
Energy & Green Tech
Dec 6, 2016
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Swedish furniture giant IKEA said Thursday it would invest 600 million euros ($677 million) in renewable energy over five years in a bid to become energy independent by 2020.
Energy & Green Tech
Jun 4, 2015
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201
Solar cells convert the sun's energy into electricity by converting photons into electrons. A new solar cell design could raise the energy conversion efficiency to over 50% by absorbing the spectral components of longer wavelengths ...
Energy & Green Tech
Apr 24, 2017
0
115
Black holes are at the center of almost all galaxies that have been studied so far. They have an unimaginably large mass and therefore attract matter, gas and even light. But they can also emit matter in the form of plasma ...
Astronomy
Aug 21, 2020
42
5134
Using nanometer-scale components, researchers have demonstrated the first optical rectenna, a device that combines the functions of an antenna and a rectifier diode to convert light directly into DC current.
Nanophysics
Sep 28, 2015
10
11274
(Phys.org)—By using solar energy to reversibly attach and detach hydrogen atoms on a 6-carbon ring called benzene, scientists have developed a simple and efficient method to store, transport, and release hydrogen potentially ...
Scientists have long suspected that a quantum phenomenon might play a role in photosynthesis and other chemical reactions of nature, but don't know for sure because such a phenomenon is so difficult to identify.
Quantum Physics
Aug 2, 2019
4
1799
Photosynthesis provides energy for the vast majority of life on Earth. But chlorophyll, the green pigment that plants use to harvest sunlight, is relatively inefficient. To enable humans to capture more of the sun's energy ...
Materials Science
Aug 22, 2017
2
689
A boat that fuels itself is setting off around the world from Paris on a six-year journey that its designers hope will serves as a model for emissions-free energy networks of the future.
Energy & Green Tech
Jul 15, 2017
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A new material has been shown to have the capability to double the efficiency of solar cells by researchers at Purdue University and the National Renewable Energy Laboratory.
Condensed Matter
Apr 6, 2017
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