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Extreme heat can affect how well machines function, and the fact that many machines give off their own heat doesn’t help. AP Photo/Abdeljalil Bounhar

Machines can’t always take the heat − two engineers explain the physics behind how heat waves threaten everything from cars to computers

People aren’t the only ones harmed by heat waves. The hotter it gets, the harder it is for machines to keep their cool.
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.
Is it better to cool your house all day, or adjust the A/C setting on your way out the door? Westend61 via Getty Images

Does turning the air conditioning off when you’re not home actually save energy? Three engineers run the numbers

Energy modeling software provides insight into whether letting your A/C relax while you’re gone all day will save you energy – and money.

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