how much water does electricity use?
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The electricity sector uses 143 billion gallons of freshwater a day to run power plants. Coal plants typically use 20 to 50 gallons of water to produce one kilowatt-hour of electricity.
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A typical washing machine uses 5.24 KWh of electricity per wash load and costs about Shs. 68 per wash (when washing with hot water). Making 15 loads of washing per month will cost approximately Shs. 1,020.
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How Much Electricity Does a Hot Tub Use Per Month? The primary energy hog in a hot tub is the heater, which will draw around 1,500 watts or 6,000 watts, depending on whether it's a 120-volt heater or a 240-volt heater. There's also the water pump to consider, which usually draws about 1,500 watts.
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For homes that use 41 gallons or less of hot water daily, demand water heaters can be 24%–34% more energy efficient than conventional storage tank water heaters. They can be 8%–14% more energy efficient for homes that use a lot of hot water -- around 86 gallons per day.
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The average dishwasher uses 6 gallons of water per cycle; the average Energy Star-rated dishwasher uses 4 gallons per cycle, and their energy use ranges from 1.59 kWh per load down to 0.87 kWh per load.
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Lloyd Alter of the website treehugger.com reports that making a single roll of toilet paper requires 37 gallons of water, 1.3 kilowatt/hours (KWh) of electricity and some 1.5 pounds of wood.
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Electric power-generating equipment requires enormous amounts of water for cooling. Although the amount of water consumed or withdrawn varies by plant-cooling technology, conversion efficiency and fuel type, it still holds true that the more electricity generated, the higher the water use.
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Thermal power plants contributes for 210 GW of power out of 320 GW. And assume they operate throughout the day. Converting 210 GW into kWh gives you 5040 million units of electricity per day. On matching this with the amount of water consumes, it leads to 7.142 litres of water per unit of electricity.
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100,000 gallons of water required to produce 1 Mwh! - Greener Ideal.
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From the Water Energy Calculator, we estimate that the average home consumes 349 litres each day and individuals use an average of 142 litres a day. When cooking, washing, watering the garden and so on are shared across the household, average water consumption per person falls (Figure 2).
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That means that 1 kilowatt hour of electricity can split about 270 grams of water and produce about 350 liters of hydrogen and 175 liters of oxygen. It depends on the pressures and concentrations. Assuming standard conditions (1 atmosphere of pressure, 1 mole per liter of H+ ions), then you'd need a voltage of 1.23V.
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The average kettle holds 1.5 litres of water and uses about 0.1 kWh of electricity to boil for 3 minutes. That's around 2p every time you boil a full kettle.
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In terms of costs, there would be a difference between fuel types. Electricity is generally charged at about 12p per KWh, so for a 10-minute shower using a 7.5kw shower would cost 15p. A power shower could use around 15litres/min, so a 10-minute shower would use 150litres of mains water, heated from around 8°C to 30°C.
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At standard office conditions (21ºC air temperature), the water cooler is capable of producing a maximum of 5.9 litres of cold water per hour and 7.9 litres of hot water per hour. To produce 5.9 litres of cold water, the unit will consume approximately 80Wh (Watt hours) of electricity.
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A bath can hold 80 litres, while a conventional electric shower uses 62 litres of hot water in a typical eight-minute ablution and costs around 30p for water and electricity.
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Unfortunately, the average electric tankless water heater needs at least 120 amps to operate and the average household's total capacity is 200 amps.
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A typical waterbed uses $6 to $22 worth of electricity per month!