Just how much power do your electronics use when they are "Off"?

• Autores: Sam Oaks-Leaf, Louis Lim (ed. lit.)
• Localización: Mathematics teacher, ISSN-e 2330-0582, ISSN 0025-5769, Vol. 110, Nº 8, 2017, págs. 570-572
• Idioma: inglés
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• Resumen

  • About a quarter of all residential energy consumption is used on devices in idle power mode, according to a study of Northern California by the Natural Resources Defense Council. That means that devices that are "off" or in standby or sleep mode can use up to the equivalent of 50 large power plants' worth of electricity and cost more than $19 billion in electricity bills every year. And there's an environmental cost: Overall electricity production represents about 37 percent of all carbon dioxide emissions in the US, one of the math contributors to climate change. Here, Oaks-Leaf presents several mathematical problems about electricity.