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Artículos sobre Electricity

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Just generating heat is not enough. We must also capture, store, and utilize waste heat year-round and especially in the winter months. (AP Photo/David J. Phillip)

Why we need to reuse waste energy to achieve net-zero heating systems

As the drive towards electrification advances, one fact seems clear: it is far easier to reuse waste heat for our homes and businesses than it is to generate it anew.
Low-income residents are among those most likely to lose cooling in their homes because they can’t pay their bills. Solidcolours/iStock/Getty Images Plus

America faces a power disconnection crisis amid rising heat: In 31 states, utilities can shut off electricity for nonpayment in a heat wave

One in 4 American households are at risk of losing power because of the high cost of energy. Over 30% of those disconnections are in summer, when heat gets dangerous.
Power plants contribute a quarter of the United States’ climate-warming greenhouse gas emissions. Howard C via Getty images

EPA’s crackdown on power plant emissions is a big first step – but without strong certification, it will be hard to ensure captured carbon stays put

Fossil fuel power plants can avoid most emissions by capturing carbon dioxide and pumping it underground. But to be a climate solution, that carbon has to stay stored for thousands of years.
Hydrogen has potential, but it faces some big challenges, including a lack of pipeline infrastructure. Petmal/iStock/Getty Images Pluss plus

What is hydrogen, and can it really become a climate change solution?

Hydrogen is getting a lot of attention as the EPA prepares to propose new emissions rules for power plants. But it has a problem: almost all of it used today is made from fossil fuels.
Room-temperature superconductors could make high-speed maglev trains more practical. Visual China Group via Getty Images

Room-temperature superconductors could revolutionize electronics – an electrical engineer explains the materials’ potential

Superconductors make highly efficient electronics, but the ultralow temperatures and ultrahigh pressures make them costly and difficult to use. Room-temperature superconductors promise to change that.
Magnetic levitation is just one of the interesting attributes that make superconductors so interesting. Mark Garlick/Science Photo Library vie Getty Images

How do superconductors work? A physicist explains what it means to have resistance-free electricity

Superconductors are materials that can transmit electricity without any resistance. Researchers are getting closer to creating superconducting materials that can function in everyday life.

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