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How much does it cost to run a 150 watt halogen bulb?
$40.00 a year
How much would it cost to run a 15 watt bulb non-stop for one year?
It depends how much you pay for electricity. A 15 Watt bulb would consume around 134 kWh of electricity. In the UK, electricity is around 10p a kWh, so it would cost £13.40 to run the bulb.
How much would leaving on a 60 watt bulb all year cost?
There are about 8760 hours in a year, so running a 60 watt bulb for a year would consume (60 times 8760) or 526000 watt hours. Electric power rates vary, but at $0.15 per kilowatt-hour, that would be almost $80.
How much money do you save per year when you swith from 60 watt light bulb to 40 watt?
It depends on how much you use the light, and how much power costs in your area. You can find out the second by looking at your electric bill... it'll give the cost per kWh (kilowatt-hour). The difference between a 40 watt bulb and a 60 watt bulb is 20 watts, meaning you'd have to leave the light on for about two days straight for the savings to be even one kilowatt-hour, and if it were on all the time in a year you'd save 180 kWh or so... almost certainly less than $20.
How much does it cost to use a 100 watt 120 volt light bulb?
At 10 cents per kWh (Kilowatt hour), one 100 watt incandescent light bulb ran for 24 hours straight will cost 24 cents a day. $7.30 a month, $87.60 a year. kWh = (Watts Used * Hours per Day * Days per Month) / 1000 Cost per Month = kWh * Cost per kWh
How much cost to burn a 60 watt bulb 12 hours a day for 30 days?
The simple way to calculate cost is $1 per watt per year. This is based on a cost of about 11 cents per kilowatt hour. Your cost may vary. So, 60 watts times 1/2 year (12 hours /day) divided by 12 ( 1 month) equals $2.50 per month.
What is the Average cost of running a 60 watt bulb for a year?
This way to figure out the answer to this question has been given in detail in a related question: "What savings can a compact fluorescent lamp give?"
How much does it cost to run a 75 watt CFL bulb?
the rule is.... run 100 watts 24/7 for 100.00/year. Your cfl will cost apx.75/year. However, while your cfl only uses 75 watts it is equivalent to apx 350 watts and produces a broad variety of colors in the spectrum making it great for growing!
How much coal does it take to light a continuously operating 100 watt light bulb for 1 year?
1 year has 8766 hours, therefore a 100 watt bulb uses up 0.1 x 8766 units of electricity, that is 876.6 units. If coal was burnt to produce the energy, about 250 kg of coal (550 pounds) would be needed.
How much does it cost to run a 100 watt light bulb per hour?
If you run a 100 watt bulb for 10 hours you would 1 kilowatt hour (kWh). The cost of electricity varies by location usually. Mine even has a sliding scale based on the usage and goes from $.08 to $0.25 per kWh. Look at your electric bill to see if it shows a rate per kWh. If it does not, divide the dollar amount of your bill by the total kWh used to get a rate per kWh. That will be the cost to run a 100 watt bulb for 10 hours. Rather than calculating KWh's, and getting out your power bill or calling the Public Service Commission - there's a 'rule of thumb' (2007 numbers) - a 100 Watt light bulb costs about 100 dollars per year if left on continuously....a typical 1200 watt heater will cost you 100/month if used heavy in the winter months.... (takes into account increased startup current, on/off time(duty cycle) and left set at reasonably warm temp day/night). simple a dollar/watt/year!... 100W - $100/year, 200W - $200/year, 1200W=$1200/year
How much energy does a nightlight consume and how much does it cost to run it all day?
It depends if you use a newer LED, or older incandescent bulb style.The old bulb style (still popular, and usually cheaper to buy) use about 7 watts.If you use that for 8 hours, you would use 56 watt-hours. For a year that would be about 20.5 kWh (kilowatt-hour).An LED style light may be 1/4 watt, which works out to be .73 kWh. per year.How much that cost depends on where you live, and what rate you pay. 10 cents an kWh is a reasonable approximation for the United States. At that rate, the Bulb light would cost about $2 a year, and the LED would cost 7 cents.If you leave the light on all the time (in a dark bathroom) triple these numbers. The bulb style would be $6 and the LED about 20 cents. You can see that although the LED light is more expensive up front, it could pay for itself in energy savings in about a year. But neither light will cost that much to run.NOT MUCH, I would say A penny or less A day.....a different (cost and environmental) perspective - although the answers above are correct, for small devices using cost always gives answers that seem tiny. For 2 reasons we should get away from this approach: (1) lots and lots of small items add up to a lot; individually they might be small but if that means we ignore all small costs they soon add up. (2) think carbon - 20kWhrs is about 20kg of carbon dioxide (say 45 lb) a year - that's about 13 cubic metres of greenhouse gas just for a nightlight!
What are the Advantages of a light bulb?
Some advantages are that CFL light bulbs last longer, so in the long run they are cheaper. They also use less energy. They are very versatile since they come in different shapes they can fit into almost any fixture.CFL or Compact Florescent Lights are a lot more energy efficient. They emit a lot more light and a lot less heat and last a lot longer. a 23 watt cfl is equal to a 100 watt incandescent in light output.If you pay 10 cents per kwh for electricity then a 100 watt bulb left on all the time will cost about $88 per year, multiply that by all the lights you leave on whereas a cfl of the same brightness would cost about 1/4 of that or around $22 per year
