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Whatever you find, remember that your rates might be different in summer vs. But don't include the monthly charge that you pay regardless of how much or how little electricity you actually use. Most bills have at least two per-kWh charges, one for supply (generating the electricity) and one for deliv ery(getting it from the power plant to your house).Д®xercise #4: Go get your electric bill and find how much you're paying per kilowatt hour, making sure to add up the various per-kWh charges, including the tax. Your bill might have multiple charges per kWh (e.g., this bill has five different per-kWh charges) and you have to add them all up to get the total cost per kWh. The electric company measures how much electricity you use in kilowatt-hours, abbreviated kWh. who your provider is (every utility has different rates).possibly when you use it (some utilities have lower rates in the evenings).the time of year (summer rates are usually higher than winter).How much does electricity cost? The cost of electricity depends on: has some of the lowest electricity rates in the world (just like with its tax rates). Despite the whining from some American consumers, the U.S. Wikipedia has a list of electricity rates around the world. On a peak day in 1999, California used 50,743,000 kilowatt-hours. as a whole used nearly 4 trillion kWh in 2009. (Then divide by 1000 to get the kilowatt-hours, which is how your utility charges you.) Example: 100-watt bulb x 2 hours Г· 1000 = 0.2 kWh. So, just multiply the watts times the hours used to get the watt-hours. We use watt-hours to see how much electricity we used over a period of time.(e.g., 100-watt bulb is twice as hungry as a 50-watt bulb.) We use watts to see how hungry a device is for power.You're going 35 miles an hour at that instant. One might as well ask: 'The speedometer in my car says I'm going 35 miles an hour. It's not for any period of time, because watts is a rate at that instant.

Here's a question I frequently get, which makes no sense: 'You say that some device uses 100 watts. Watt-hours is the total energy used over time.Watts is the rate of use at this instant.watt-hours Many of my readers get confused about the difference between watts and watt-hours. How much does it cost to run it continuously for a month? How much per year? Assume 15Вў/kWh. 400 watts x 24 hours/day x 30.5 days/month = 292,800 Total Watt-hoursД®xercise #3.How much does it cost if the lights are on 24 hours a day, for a whole month? How much per year? Assume 15Вў/kWh. Assume that the lights in your kitchen and living room together use 400 watts. Go get your electricity bill and see how many kilowatt hours you used last month.Д®xercise #2.

The most accurate way to find the average wattage of a device is to measure it with a watt-hour meter.Д®xercise #1. My calculator takes this into account by listing the average wattage for fridges. For example, the compressor in a refrigerator doesn't run constantly, only sometimes, so you can't go by the listed wattage for a fridge.

Chal jivi laiye movie times full#

You can't always trust the wattage printed on the device, because many devices don't use the full listed wattage all the time. (If you're outside North America, your country probably uses 220 to 240 volts instead of 120.) For example: 2.5 amps x 120 volts = 300 watts If your device doesn't list wattage, but it does list amps, then just multiply the amps times the voltage to get the watts. Your cost to run the bulb all month is 100 x 730 Г· 1000 x 15Вў = $10.95. Here's the formula to figure the cost of running a device: wattage x hours used Г· 1000 x price per kWh = cost of electricityДЇor example, let's say you leave a 100-watt bulb running continuously (730 hours a month), and you're paying 15Вў/kWh. You might also be interested in my list of wattagefor most household devices. If you'd rather not do the math then my handy calculator above will do all the work for you. (Dividing by 1000 changes it from watt-hours to kilowatt-hours.) That's exactly what I did in the table above.

To get kilowatt-hours, take the wattage of the device, multiply by the number of hours you use it, and divide by 1000. When you use 1000 watts for 1 hour, that's a kilowatt-hour. When you buy electricity they charge you by the kilowatt-hour (kWh). When you buy gas they charge you by the gallon. Before we see how much electricity costs, we have to understand how it's measured. It is simply a unit of measurement that equals the amount of energy you would use if you kept a 1,000 watt appliance running for an hour. It doesnвЂ™t mean the number of kilowatts youвЂ™re using per hour. A kilowatt hour (kWh) is a measure of how much energy youвЂ™re using.