how many kwh does computer use?
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Most computers are built to use up to 400 kilowatts of electricity per hour, but they usually use less than that. The average CPU uses about as many kilowatts per hour as the typical light bulb. Any computer that's running on a Pentium-type processor uses about 100 kWh.
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Small wind turbines used in residential applications typically range in size from 400 watts to 20 kilowatts, depending on the amount of electricity you want to generate. A typical home uses approximately 10,932 kilowatt-hours of electricity per year (about 911 kilowatt-hours per month).
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Based on our actual measurements of gaming PCs with progressively more efficient component configurations, together with market data on typical patterns of use, we estimate that the typical gaming PC (including display) uses about 1400 kilowatt-hours of electricity per year.
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The amount of heat a computer produces varies in relation to the amount of work it does. At the low end, a cellphone generates only a few milliwatts of heat in Standby mode, conserving battery power. From its 100-watt minimum, an average desktop PC can range up to 130 watts when used heavily.
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When in standby mode, a laptop uses very little electricity- around 1.6 watts to be exact. The average UK household clocked about 7374 hours of usage which would equate to around £45.25 in electricity bills.
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We take the average annual usage per home 10,812 kilowatt hours and break it down. 10812kwh/365days/24hours we get 1.23 kw/hr. As there are 1000 kilowatts in a megawatt , 1 mw would power 813 average US homes, or 1 mWh would power 813 homes for 1 hour. The number 10218 is stolen from a comment below.
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The average energy consumption of a gaming PC is around 1,400 kWh per year. This is 10 times the power consumed by 10 gaming consoles or 6 regular computers.
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A 1 kilowatt hour is 1 kilowatt for an hour, so a device that uses 1,000W and ran for 5 hours would need 5 kWh of power. Laptop batteries will sometimes say what their watt hour rating is. If it's rated at 150 wH, this means it can output 150 watts for an hour. Most laptop adapters are 60-90 watts.
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To get an idea of how much power your PC uses, you'll want to visit OuterVision, which is a free-to-use power supply calculator. This service is highly detailed, works for both laptops and PCs and is used by both computer hardware professionals and enthusiasts alike.
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Given that the average North American household uses about 1000 kWh/month, if your monitor were in actual use all month (720 hours) at 40 watts it would use 28800 watt hours or 28 kWh. About $3 to $5 depending on your power rates. Most monitors are set to go to sleep after a few minutes of inattention.
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You use it for two hours a day, five days a week. That's 105 watts x 10 hours/week x 52 weeks/year = 54,600 watt-hours, or 54.6 kWh. If you're paying 10¢ per kilowatt-hour, then you're paying about $5.50 a year to run your computer. That's quite a range, $5.50 to $631 a year.
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According to the EIA, in 2017, the average annual electricity consumption for a U.S. residential home customer was 10,399 kilowatt hours (kWh), an average of 867 kWh per month. That means the average household electricity consumption kWh per day is 28.9 kWh (867 kWh / 30 days).
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Your average laptop, with its far bigger screen, uses about 72 kWh, costing some $8 a year. That's right, you can run your phone, iPad and laptop for a whole year for about $10 -- less than the cost of three gallons of gasoline.
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To calculate the cost of running your PC at full load for one hour, you need to divide the watt usage by 1000 and multiply the result by your kWh. If your PC uses 300 watts while gaming, then one hour of play time would cost you just under 4 cents.
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Also you have to calculate offpeak usage as well which for my energy company starts at 1am and ends at 6am. These usage times are nearly half what you pay on peak. In the end the reality is that it would cost you anything from $1.50 to $2.00 a day to keep your computer on and running 24/7.
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The average U.S. home uses about 900 kWh per month. So that's 30 kWh per day or 1.25 kWh per hour. Your average daily energy usage is your target daily average for to calculate your solar needs.
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As of 2014, the U.S. Energy Information Administration estimates that one kilowatt-hour of energy usage costs about 16.18 cents in California, for instance. At this rate, running a small, medium or large PAC for eight hours a day would cost roughly $2.84, $3.75 or $5.31, respectively.