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Getting behind the humming science of electrical power


Think about the most complicated machine you’ve dealt with in the past year. Was it a beeping monitor tethered to a high-tech device in an emergency room? Or was it a super fast computer you used at work?

Actually, the most complicated machine you’ve interacted with was the one you used this morning when you switched on a light or plugged in your coffee machine. The entire power grid has to balance supply (generation) and demand (load) on a second by second basis. We take it for granted most of the time, but it’s a marvel when you stop to think about it.

“The U.S. grid is the most...

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