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Stuff We Use: Under Pressure (Washers)

The Truth About Cars

For ages, this writer used a gasoline-powered pressure washer, firm in the belief it ran better and more reliably than any cheap electric plug-in unit ever would. The battery is a large cube and sits where the gasoline engine resided on my old pressure washer, consuming about the same amount of space.

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False Starts: The Story of Vehicle-to-Grid Power

Cars That Think

As utilities shifted to more reliable alternating-current systems, they phased out these costly backup batteries. Then, as electricity entrepreneurs expanded power generation and transmission capacity, they faced the new problem of what to do with all the cheap off-peak, nighttime electricity they could now produce.

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