Most Wisconsin households could save $90 a year and slash energy use by selectively unplugging devices that draw power even when not in use, according to a study by Alliant Energy.

These “always on” devices include things like wireless internet routers, which need electricity to maintain a constant connection, or televisions, which take a long time to power up and need some juice in order to respond when you push the remote control.

But there are dozens of other culprits — including computers, printers, rarely used DVD players and anything with a DC power converter — sucking up power around the clock.

A 2015 study by the Natural Resources Defense Council (NRDC) estimated nearly a quarter of all household electricity use in the United States is consumed by appliances and other equipment in standby mode.

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