how much electricity does a desktop fan use?
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A desk fan will cost less than one cent per hour to run with the annual cost coming in between $3.77 and $12.57 depending on how it's used. Desk fans are small and are ideal for cooling a single person. As a desk fan is designed to sit close to you, it has a much lower max power output of around 25W to 35W.
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Energy Usage A window AC unit can use anywhere from 500 to 1440 watts of electricity to run, while a typical central air unit in the average sized home uses about 3500 watts.
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['Fan Load= No x Watt =2×60=120 Watt.', 'Fan Load=(No x Watt)/P.F=(2×60)/0.8= 150VA.', 'Computer Load= No x Watt =1×200=200 Watt.', 'Computer Load=(No x Watt)/P.F =(1×200)/0.8= 250VA.', 'Tube Light Load= No x Watt =2×30=60 Watt.', 'Tube Light Load=(No x Watt)/P.F =(2×30)/0.8= 75VA.', 'Total Electrical Load=120+200+60 =380 Watt.']
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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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Switch off that fan While a tubelight consumes around 55 watts per hour, an average fan consumes 75 watts. Old models and inexpensive fans can guzzle up to 90 watts. Replacing your old fan with a power-saver model makes sense as a BEE rated fan consumes around 50 watts.
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Many Appliances Use Just as Much Power When Off Always leaving a laptop computer plugged in, even when it's fully charged, can use a similar quantity — 4.5 kilowatt-hours of electricity in a week, or about 235 kilowatt-hours a year.
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Table fans use relatively less power to run compared to the typical ceiling fans. Common table fans use 50 to 55 watts of electricity as we can find in the market. The high-speed variant of the table and stand fans use more power to run- about 65 to 110 watts.
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How much electricity does a PC use in the UK? A desktop PC typically uses around 100 watts of electricity, the equivalent of 0.1 kWh. This means that if a PC is on for eight hours a day, it will cost 10p a day to run the laptop (based on an average energy unit cost of 12.5 p/kWh).
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With an aircon using between 750 and 3,500 watts and a fan using anywhere between 10 and 120 watts, you see how the running costs of an AC can stack up much more than that of a fan. In Singapore, on average, running an AC costs around $200 per month while running a ceiling fan costs just $12 a month.
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Most branded air coolers come with a power rating between 125W to 230W. These air coolers consume 0.2 to 0.5 units of electricity per hour. ... So, on an average AC uses three to seven times more power than an air cooler but that is only half the story. Power consumption can be higher in non-branded air coolers.
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We estimate that an average modern desktop PC will use approximately 100 watts of power, not including the display screen. Click calculate to find the energy consumption of a desktop computer using 100 Watts for 6 hours a day @ $0.10 per kWh.
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Like other types of fans, window fans use less power than an A/C unit. Most window fans typically consume between 35 and 100 watts, depending on its make and model.
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A typical AC fan motor uses about 500 watts when it's running. Therefore, if you run the fan continuously for a 30-day month (720 hours), you would use 360,000 watt hours (720 x 500) or 360 kilowatt hours (kWh).
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A window air conditioner with a cooling output of 12,000 BTU uses approximately 15 amps from a 125 volt outlet. This translates to approximately 1.8 kWh. At the end of a month, one window air conditioner will cost about $35.60. Remember, that's only for one room.
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Using your desktop computer At an average of 28 cents per kWh, a low end machine (110w with CRT monitor) can cost as much as $90 per year if left on for 8 hours per day. Adding the cost of the printer, scanner, speakers and other peripherals, and the bill can easily tip over $100 per year.
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Most desktop computers consume around 70 to 200 watts while laptops would consume between 15 to 60 watts. That's 70% to 80% difference and savings.
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Vornado Floor Fan - Now With DC Motor Efficient DC motor technology - uses between 2 watts of power (400 RPM) and 40 watts on max (1,800 RPM). Provides whole room air circulation - see graphic below.