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Articles on Transmission

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The control room of the California Independent System Operator, which manages the flow of electricity on the state’s power grid. Rolf Schulten/ullstein bild via Getty Images

What is curtailment? An electricity market expert explains

Sometimes wind and solar power produce more electricity than the local grid can handle. Better energy storage and transmission could move extra energy to where it’s needed instead of shutting it off.
New variants of SARS-CoV-2, the virus that causes COVID-19, arise through mutations when the virus replicates in an infected host’s cells. (NIAID, cropped from original)

How new COVID-19 variants emerge: Natural selection and the evolution of SARS-CoV-2

COVID-19 variants are the products of the evolution of the SARS-CoV-2 virus. They arise via mutations, but other forces also have roles to play in the generation and transmission of variants.
Floors can be tested to predict the level of COVID-19 in an environment. (Oliver Hale/Unsplash)

Swabbing floors to detect COVID-19 could be a useful indicator of the disease’s spread

As we move through the ongoing COVID-19 pandemic, new predictive methods of testing can help monitor the spread of the disease. Environmental testing, like swabbing floors, is a useful tool.
Outages left downtown New Orleans in the dark after Hurricane Ida made landfall on Aug. 29, 2021. Michael Robinson Chavez/The Washington Post via Getty Images

Can burying power lines protect storm-wracked electric grids? Not always

Hurricane Ida left the entire city of New Orleans in the dark and renewed discussion of burying power lines. But there’s no way to completely protect the grid, above ground or below.
Amid growing COVID-19 transmission, hospitalization and death rates, mask mandates are returning in some states. Luis Alvarez/DigitalVision via Getty Images

State policies can provide clear guidance on when to put on and take off masks – with benefits to health, education and the economy

After the CDC changed course in late July, recommending universal masking indoors, Nevada became the first state to adopt a flexible masking policy that can quickly adjust to changing COVID-19 rates.
Vaccinated people are well protected from getting sick, but could they inadvertently transmit the coronavirus? Noam Galai/Getty Images Entertainment via Getty Images

Can people vaccinated against COVID-19 still spread the coronavirus?

The COVID-19 vaccines are a smash success. But that doesn’t mean they keep every vaccinated person completely free of the coronavirus.
In-person learning can start as long as schools operate safely, says the CDC. Jon Cherry/Getty Images

How can all schools safely reopen?

In-person learning can safely resume as long as schools take steps to mitigate the spread of COVID-19.
Vaccinated people are wondering whether they can ease social distancing and mask-wearing. AP Photo/Darko Bandic

Can vaccinated people still spread the coronavirus?

You’ve been vaccinated; can you now safely see your friends and family? New research hints that vaccinated people may be less likely to transmit the coronavirus, but they are not 100% in the clear.

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