Energy & Green Tech

Converting solar energy to electricity on demand

The researchers behind an energy system that makes it possible to capture solar energy, store it for up to 18 years and release it when and where it is needed have now taken the system a step further. After previously demonstrating ...

Engineering

Solar cell keeps working long after sun sets

About 750 million people in the world do not have access to electricity at night. Solar cells provide power during the day, but saving energy for later use requires substantial battery storage.

Energy & Green Tech

Wind, solar could replace coal power in Texas

Texas can be a model for the nation on how to effectively replace coal with wind and solar for the state's energy needs while meeting environmental goals, according to new research by Rice University engineers. 

Energy & Green Tech

Are wind and solar power really more expensive and less reliable?

Not that long ago, critics of renewable sources of energy had a point when they claimed wind and solar power cost more and were less dependable than fossil fuels, mostly because they depend upon the wind blowing and the sun ...

Energy & Green Tech

Who pays and who benefits from a massive expansion of solar power?

Electricity generation produces a quarter of U.S. greenhouse gas emissions that drive climate change. The electric grid also is highly vulnerable to climate change effects, such as more frequent and severe droughts, hurricanes ...

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