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How much energy does it cost to leave a 300 watt light on 24 hours a day for a week?
Wiki User
∙ 14y ago
Your electric bill should have a cost for a kilowatt hour. A typical value might be 12 cents. You are consuming 300 x 24 x 7 watt hours = 50,400 or 50.4 kilowatt hours. At 12 cents per KWh that is $6.05
Wiki User
∙ 14y ago
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How many watts does a 60w light bulb consume in a day - in pound sterling?
A 60 Watt light bulb consumes electrical energy. If you leave is on for 24 hours, it consumes 60 x 24 = 1440 Watt-Hours, or 1.44 Kilowatt-Hours. If you want to know how much money this much energy costs, look on your last electricity bill. There it will give the cost of one Kilowatt-Hour.
How much does it cost to run a 1000 watt light bulb in 24 hours?
a 1000 watt bulb used for 24 hours consumes 24,000 watt-hours of energy, or 24 kilowatt-hours or kWh. That is also described as 24 Units, each costing around £0.15. So the toal cost would be about £3.60.
How much energy can be saved by replacing a 75 watt incandescent with a 18 watt fluorescent?
OVer time you will eventually save money off of your electric bill because the CFL uses less energy. So you can save a lot of money Depends on the wattage of the incandescent compared with the wattage of the CF that replaces it. In the UK, replacing a 100 watt bulb with a 20 watt bulb might save 10 pence in 12 hours running.
How much energy does 60 watt bulb consume if it burns for 28 hours?
By energy you mean watt hours. So the equation is watts x hours = 1680 watt hrs. Or stated in Kilowatts it would be 1.68 kw hrs. Average cost in USA would be about 18 cents.
How much does it cost me to burn a 25 watt light bulb for 24 hours a cost of 0.085156 per kwh?
25 watts * 24 hours = 600 watt hours = 0.6 kwh {1 kilowatt hour = 1000 watt hours} 0.6 kwh * (0.085156 per kwh ) = 0.0510936 or about 5.1 cents
How many watts does a 60w light bulb consume in a day - in pound sterling?
A 60 Watt light bulb consumes electrical energy. If you leave is on for 24 hours, it consumes 60 x 24 = 1440 Watt-Hours, or 1.44 Kilowatt-Hours. If you want to know how much money this much energy costs, look on your last electricity bill. There it will give the cost of one Kilowatt-Hour.
Are kilo watt hours bad for energy?
No, kilowatt-hours are an exact measure of a quantity of energy. Energy is something that can be measured exactly and if you have an electricity supply at your house there is a meter that measures the kilowatt-hours you use. If you have a 40-watt light, it uses 40 watt-hours if it is on for an hour. If it is left on for 24 hours it uses 40 x 24 watt-hours, which is 0.96 kilowatt-hours, that might cost you 10-20 cents or pence.
What is the cost per week of using a 40w light bulb for 36 hours in a week?
Not enough information - I don't know what your light company charges you per kWh. Here is how you calculate this: a) Convert the week to hours. b) Convert the watts to kilowatts. c) Multiply the result of part (a) by the result of part (b), to get the total number of kilowatt-hours. d) Get the cost per kilowatt-hour. Look at a bill from your power company. If the cost per kilowatt-hour is not stated explicitly, you can divide the total amount of dollars (or whatever) by the kilowatt-hours billed, to get the cost, in dollars per kilowatt-hour. e) Multiply the result of part (c) by the result of part (d).
What percentage in a energy saving light bulb is useful?
Consider over 60% in energy savings possible. There is also reduce heat output. Energy saving lights can last from 10000 to 50000 hours each. There is less maintenance cost in replacements. Solar lights can be used in some instances to save on electrical installation cost and running costs.
Do electric fireplace inserts cost a lot of energy?
Electric fireplaces generally don't cost a lot extra in energy. They have settings on them so you can adjust the amount of energy being used. However like all electrical things the longer you leave it on the more it will cost.
What is the cost to operate a 75 W lamp for 125 h if the cost of energy is 0.04 kWh?
Consuming energy at the rate of 75 watts for 125 hours results in a total energy consumption of(75 x 125) = 9,375 watt-hours = 9.375 kWh.At a cost of 4 cents per kWh, that amount of energy costs(4 x 9.375) = 37.5 cents
How many years would it take to recoup the entire cost of low energy light bulbs?
A few months. You'll have to do the calculations by yourself, for your case - both the cost of light bulbs and the cost of electricity may vary depending on the region. Assume that the low-energy light bulbs use about half, or one third, of the old-style incandescente light bulbs.
What is the average life span of a gu10 led bulb under normal usage?
"Under normal usage, a GU10 LED light bulb will last 25 years. This equates to about 50,000 hours and is a very cost-effective and low energy light bulb."
How do you compute electrical consumption of a device?
A simple electrical device is a 60 watt light bulb. The bulb is consuming 60 watts of electricity from the moment you turn it on. If you keep that light bulb on for 10 hours the power used is 60 watts x 10 hours = 600 watts of power. Electricity is sold in Kilowatt Hours. A Kilowatt is 1000 watts of power. Depending on the state you live in, it sells for 7 to 18 cents per Kilowatt Hour. So if you leave that light bulb on 10 hours per day for 30 days you will have used up 600 watts x 30 days = 18,000 watts of electricity = 18 Kilowatt Hours. At an average cost of 10 cents per Kilowatt Hour that bulb costs you $1.80 per month to leave on. The formula is watts x time x cost per Kilowatt Hour = cost of use...Answer provided by Gene Evangelist
How much does it cost in cents to run a 60 watt light bulb?
In 100 hours it will use 6 kilowatt-hours (units) of electrical energywhich would cost around £1 or $1.
What is meant by lost energy in relation to light bulbs?
It means that only part of the electrical energy used up gets converted into useful light; another part of the energy gets converted into other types of energy, mainly heat. If this energy waste could be avoided (so that the light bulb produces only light, and no heat), then you would get the same result at a lower cost.
How much does energy efficent light bulbs cost per hour?
There is actually no energy efficient light bulbs in a way to interpret in physical determination. Energy efficient means less Watts required per hour compared to non energy efficient.
