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The price of washing up

  • Modern dishwashers are energy efficient and do not use a lot of water. Dishwashers use between 1200 and 2400 watts of power, with an average dishwasher using 1800 watts. The energy consumption of a dishwasher using 1800 Watts for 1 hour a day @ $0.10 per kWh. (energy use calculator.com)