One kilowatt hour (kW h) is the amount of work or energy generated when one kilowatt of power is supplied for?
Q. One kilowatt hour (kW h) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. A kilowatt hour is the unit of energy used by power companies when figuring out your electric bill. Determine the number of joules of energy in one kilowatt hour.
Asked by Tomo M - Mon Mar 22 14:54:03 2010 - - 2 Answers - 0 Comments
A. 1 kilowatt hour = 1,000 watts = 3,600,000 Joules
Answered by Dan S - Mon Mar 22 14:58:08 2010
Q. One kilowatt hour (kW h) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. A kilowatt hour is the unit of energy used by power companies when figuring out your electric bill. Determine the number of joules of energy in one kilowatt hour.
Asked by Tomo M - Mon Mar 22 14:54:03 2010 - - 2 Answers - 0 Comments
A. 1 kilowatt hour = 1,000 watts = 3,600,000 Joules
Answered by Dan S - Mon Mar 22 14:58:08 2010
What does per kilowatt-hour mean? How can I explain it to a bunch of high school juniors?
Q. The real sentence is: The estimated cost to generate electricity from biomass ranges from 5.2 to 6.7 cents per kilowatt-hour.
Asked by sweetcalm<3 - Sat Mar 1 14:02:55 2008 - - 8 Answers - 0 Comments
A. It means per kilowatt, per hour. The unit cost is for each kilowatt used for a full hour. If 2 kilowatts are used then the unit cost is doubled. Likewise if the time is doubled to 2 hours then the unit cost is again doubled. The cost continues to rise pro rata with the number of kilowatts used and the number of hours they are used for.
Answered by Angela D - Sat Mar 1 14:17:21 2008
Q. The real sentence is: The estimated cost to generate electricity from biomass ranges from 5.2 to 6.7 cents per kilowatt-hour.
Asked by sweetcalm<3 - Sat Mar 1 14:02:55 2008 - - 8 Answers - 0 Comments
A. It means per kilowatt, per hour. The unit cost is for each kilowatt used for a full hour. If 2 kilowatts are used then the unit cost is doubled. Likewise if the time is doubled to 2 hours then the unit cost is again doubled. The cost continues to rise pro rata with the number of kilowatts used and the number of hours they are used for.
Answered by Angela D - Sat Mar 1 14:17:21 2008
How many kilowatt hours (1000 watts/s for one hour) of energy would be produced by the complete conversion?
Q. A Watt (W) is a unit of power equal to 1J/s. A kilowatt is 1000 watts. How many kilowatt hours (1000 watts/s for one hour) of energy would be produced by the complete conversion to energy of 0.257 mg of matter? Error tolerance: 1%
Asked by rafi0500 - Wed Nov 28 15:44:15 2007 - - 1 Answers - 0 Comments
A. E = 1/2 * m * c^2 E = 1/2 * (0.257 kg )(300,000 km/s)^2 E = 1/2 * (0.257 kg)(300,000,000 m/s)^2 Multiply the above by 3.6(3600) to obtain answer in KW/hr
Answered by Bob - Sat Dec 1 16:57:10 2007
Q. A Watt (W) is a unit of power equal to 1J/s. A kilowatt is 1000 watts. How many kilowatt hours (1000 watts/s for one hour) of energy would be produced by the complete conversion to energy of 0.257 mg of matter? Error tolerance: 1%
Asked by rafi0500 - Wed Nov 28 15:44:15 2007 - - 1 Answers - 0 Comments
A. E = 1/2 * m * c^2 E = 1/2 * (0.257 kg )(300,000 km/s)^2 E = 1/2 * (0.257 kg)(300,000,000 m/s)^2 Multiply the above by 3.6(3600) to obtain answer in KW/hr
Answered by Bob - Sat Dec 1 16:57:10 2007
How do I find the cost of electricity per kilowatt-hour on my electric bill?
Q. So like, how do I find it? Do I have to multiply something and something? This is the actual question: Find the cost of electricity per kilowatt-hour on your electric bill. How much does washing your clothes in a washing machine cost? Energy consumed in 1 hour(watts) for a washing machine is 425 how do i find it? I really really need your help!!!
Asked by C - Thu Jun 10 02:58:20 2010 - - 2 Answers - 0 Comments
A. The rate should be stated on the bill. It may be broken down into generating, delivery, and fuel surcharge costs. If that is the case, add the various rates together. The other way is to simply take the total bill and divide it by the kWh use for the billing period. There may be a fixed "customer charge" in there also. Your cost per kWh most likely will be somewhere between $0.04 and $0.60 depending on where you live. Watts is the rate that the machine uses electricity. It will use 425 watts whether it is on for 5 minutes or 5 hours. The rate x time gives usage. 425 watts for 1 hour is 425 watt-hours or 0.425 kilowatt-hours (kWh). If you machine doesn't need a full hour to wash your clothes, it will use less. Don
Answered by DON - Thu Jun 10 03:24:38 2010
Q. So like, how do I find it? Do I have to multiply something and something? This is the actual question: Find the cost of electricity per kilowatt-hour on your electric bill. How much does washing your clothes in a washing machine cost? Energy consumed in 1 hour(watts) for a washing machine is 425 how do i find it? I really really need your help!!!
Asked by C - Thu Jun 10 02:58:20 2010 - - 2 Answers - 0 Comments
A. The rate should be stated on the bill. It may be broken down into generating, delivery, and fuel surcharge costs. If that is the case, add the various rates together. The other way is to simply take the total bill and divide it by the kWh use for the billing period. There may be a fixed "customer charge" in there also. Your cost per kWh most likely will be somewhere between $0.04 and $0.60 depending on where you live. Watts is the rate that the machine uses electricity. It will use 425 watts whether it is on for 5 minutes or 5 hours. The rate x time gives usage. 425 watts for 1 hour is 425 watt-hours or 0.425 kilowatt-hours (kWh). If you machine doesn't need a full hour to wash your clothes, it will use less. Don
Answered by DON - Thu Jun 10 03:24:38 2010
How much would it cost to pay back a 1.2 million dollar wind turbie if you get 4 cents per kilowatt hour?
Q. a 1.2 million dollar wind turbine 4 cents per kilowatt hour how would u calculate this?
Asked by gergen15 - Thu May 20 00:15:36 2010 - - 3 Answers - 0 Comments
A. If the turbine produces 1 MW, for example, That. in one year will produce an amount of energy equal to 1 MW x 365.24 day/year x 24 hour/day = 8766 MW-hours per year. But we need to multiply that by the utilization factor. Assume 20%, that is, the wind is blowing and the turbine is producing full power 20% of the time, optimistic. 8766 MW-hours per year x .2 = 1753 MW-hour per year. That will produce income, assuming no maintenance costs, of 1753 MW-hour per year x $.04 / kW-hour = $70,000 (per year) $1.2M / $70k/yr = 17 years But I made a lot of assumptions. .
Answered by billrussell42 - Thu May 20 06:42:24 2010
Q. a 1.2 million dollar wind turbine 4 cents per kilowatt hour how would u calculate this?
Asked by gergen15 - Thu May 20 00:15:36 2010 - - 3 Answers - 0 Comments
A. If the turbine produces 1 MW, for example, That. in one year will produce an amount of energy equal to 1 MW x 365.24 day/year x 24 hour/day = 8766 MW-hours per year. But we need to multiply that by the utilization factor. Assume 20%, that is, the wind is blowing and the turbine is producing full power 20% of the time, optimistic. 8766 MW-hours per year x .2 = 1753 MW-hour per year. That will produce income, assuming no maintenance costs, of 1753 MW-hour per year x $.04 / kW-hour = $70,000 (per year) $1.2M / $70k/yr = 17 years But I made a lot of assumptions. .
Answered by billrussell42 - Thu May 20 06:42:24 2010
The kilowatt- hour is a unit of what physical quantity or quantities?
Q. The kilowatt- hour is a unit of what physical quantity or quantities?
Asked by riddle - Mon May 26 19:41:33 2008 - - 5 Answers - 0 Comments
A. *The kilowatt hour, also written kilowatt-hour, (symbol kW h, kW h or kWh) is a unit of energy. *It is most commonly used to express amounts of energy delivered by electric utilities, and it appears on electric meters and bills in some countries. *The kilowatt hour is a measure of work, the watt is a measure of power. The amount of wattage times the amount of time is the amount of work done. *It is not used in the International System of Units (SI). The SI unit of energy is the joule (J), equal to one watt second. The kilowatt hour is commonly used, though, especially for measuring electric energy. *One watt hour is equivalent to 3,600 joules (1 J/s 3600 s), thus a kilowatt hour is 3,600,000 joules or 3.6 megajoules, and a kilowatt… [cont.]
Answered by alpha b - Tue May 27 15:05:51 2008
Q. The kilowatt- hour is a unit of what physical quantity or quantities?
Asked by riddle - Mon May 26 19:41:33 2008 - - 5 Answers - 0 Comments
A. *The kilowatt hour, also written kilowatt-hour, (symbol kW h, kW h or kWh) is a unit of energy. *It is most commonly used to express amounts of energy delivered by electric utilities, and it appears on electric meters and bills in some countries. *The kilowatt hour is a measure of work, the watt is a measure of power. The amount of wattage times the amount of time is the amount of work done. *It is not used in the International System of Units (SI). The SI unit of energy is the joule (J), equal to one watt second. The kilowatt hour is commonly used, though, especially for measuring electric energy. *One watt hour is equivalent to 3,600 joules (1 J/s 3600 s), thus a kilowatt hour is 3,600,000 joules or 3.6 megajoules, and a kilowatt… [cont.]
Answered by alpha b - Tue May 27 15:05:51 2008
how much (estimated) money will it cost for somthing in my home to use 1263 kilowatt - hour?
Q. I am going to buy an edenpure heater and it uses 1263 kilowatts per hour. I was wondering about how much money it would cost. We live in Ohio if that helps ;)
Asked by Rachael A - Thu Jan 22 19:23:50 2009 - - 3 Answers - 0 Comments
A. An average home in America is capable of using a maximum of 24 kilowatts. A newer home 48 kilowatts.And you want to install what?
Answered by Docar - Thu Jan 22 22:18:07 2009
Q. I am going to buy an edenpure heater and it uses 1263 kilowatts per hour. I was wondering about how much money it would cost. We live in Ohio if that helps ;)
Asked by Rachael A - Thu Jan 22 19:23:50 2009 - - 3 Answers - 0 Comments
A. An average home in America is capable of using a maximum of 24 kilowatts. A newer home 48 kilowatts.And you want to install what?
Answered by Docar - Thu Jan 22 22:18:07 2009
What is the cost per kilowatt hour for fuel cells?
Q. Also, if possible, can you assist your answer with a reliable website? (like .gov websites or .org) yea, hydrogen
Asked by James Y - Wed Apr 9 02:09:21 2008 - - 2 Answers - 0 Comments
A. Pure hydrogen as its only input, or can it use other fuels and extract the hydrogen from them? One company I own stock in is making a fuel cell that runs off heavy fuel oil. Others use natural gas, gasoline, diesel, methane from brewery operations, landfill gas,... All depends on source and availability.
Answered by thor - Wed Apr 9 23:40:33 2008
Q. Also, if possible, can you assist your answer with a reliable website? (like .gov websites or .org) yea, hydrogen
Asked by James Y - Wed Apr 9 02:09:21 2008 - - 2 Answers - 0 Comments
A. Pure hydrogen as its only input, or can it use other fuels and extract the hydrogen from them? One company I own stock in is making a fuel cell that runs off heavy fuel oil. Others use natural gas, gasoline, diesel, methane from brewery operations, landfill gas,... All depends on source and availability.
Answered by thor - Wed Apr 9 23:40:33 2008
How much does a kilowatt hour cost?
Q. ...and how much do the electric companies pay per kW/h sold back into the system?
Asked by Lobster Dinosaur - Sun Jan 11 23:12:56 2009 - - 3 Answers - 0 Comments
A. In Hawaii its only half of what you pay for power, so if you buy KWH for X and have solar power and send back to the utility the same KWH, you only get HALF X ... this needs to be corrected! Find out what is the policy in your local area and if it isn't fair, KVETCH a lot! Make your voice heard! Governments Govern by the CONSENT of those Governed, if they don't have your CONSENT, be NOT silent!
Answered by n0spam4me - Sun Jan 11 23:33:24 2009
Q. ...and how much do the electric companies pay per kW/h sold back into the system?
Asked by Lobster Dinosaur - Sun Jan 11 23:12:56 2009 - - 3 Answers - 0 Comments
A. In Hawaii its only half of what you pay for power, so if you buy KWH for X and have solar power and send back to the utility the same KWH, you only get HALF X ... this needs to be corrected! Find out what is the policy in your local area and if it isn't fair, KVETCH a lot! Make your voice heard! Governments Govern by the CONSENT of those Governed, if they don't have your CONSENT, be NOT silent!
Answered by n0spam4me - Sun Jan 11 23:33:24 2009
What is the cost of operating 500 kilowatt oven for six hours at 8 cents an hour?
Q. What is the cost of operating 500 kilowatt oven for six hours at 8 cents an hour? I'm trying to figure this out but I never get the same answer!
Asked by Abbie - Wed Oct 29 09:55:01 2008 - - 3 Answers - 0 Comments
A. I think you mean "8 cents per Kilowatt Hour" which would be low but OK price for energy Cost = Draw * Time * Cost/Time Cost = 500 KW * 6 Hours * $0.08/KWH Cost = $240.00
Answered by Ted DeadMan - Wed Oct 29 10:10:20 2008
Q. What is the cost of operating 500 kilowatt oven for six hours at 8 cents an hour? I'm trying to figure this out but I never get the same answer!
Asked by Abbie - Wed Oct 29 09:55:01 2008 - - 3 Answers - 0 Comments
A. I think you mean "8 cents per Kilowatt Hour" which would be low but OK price for energy Cost = Draw * Time * Cost/Time Cost = 500 KW * 6 Hours * $0.08/KWH Cost = $240.00
Answered by Ted DeadMan - Wed Oct 29 10:10:20 2008
How much energy does it take (per kilowatt hour) in order to pump groundwater?
Q. How much energy does it take (per kilowatt hour) in order to pump groundwater?
Asked by Monica - Wed Apr 7 20:31:39 2010 - - 2 Answers - 0 Comments
A. That would depend on the volume, the pipe diameter, pump efficiency, and the head.
Answered by georock1959 - Wed Apr 7 20:32:40 2010
Q. How much energy does it take (per kilowatt hour) in order to pump groundwater?
Asked by Monica - Wed Apr 7 20:31:39 2010 - - 2 Answers - 0 Comments
A. That would depend on the volume, the pipe diameter, pump efficiency, and the head.
Answered by georock1959 - Wed Apr 7 20:32:40 2010
how many watts are used during 1 kilowatt hour?
Q. I need to find this out.
Asked by Charles Slone - Wed Aug 20 19:08:43 2008 - - 3 Answers - 0 Comments
A. It can be 1000 watt for one hour, or 3.6 megawatt for 1 second, or anything that multiplies power and time to give 3.6 million watt-second. A watt-hour is a measure of energy, a watt is a measure of power (equal to one joule per second).
Answered by Vincent G - Wed Aug 20 19:13:39 2008
Q. I need to find this out.
Asked by Charles Slone - Wed Aug 20 19:08:43 2008 - - 3 Answers - 0 Comments
A. It can be 1000 watt for one hour, or 3.6 megawatt for 1 second, or anything that multiplies power and time to give 3.6 million watt-second. A watt-hour is a measure of energy, a watt is a measure of power (equal to one joule per second).
Answered by Vincent G - Wed Aug 20 19:13:39 2008
How many watts are used in a kilowatt hour?
Q. How many watts are used in a kilowatt hour?
Asked by Sarah - Thu Aug 21 17:18:05 2008 - - 2 Answers - 0 Comments
A. a 1000 thats wat kilo means for example i kilometer equals a 1000 centimeters get it
Answered by please help me - Thu Aug 21 17:26:59 2008
Q. How many watts are used in a kilowatt hour?
Asked by Sarah - Thu Aug 21 17:18:05 2008 - - 2 Answers - 0 Comments
A. a 1000 thats wat kilo means for example i kilometer equals a 1000 centimeters get it
Answered by please help me - Thu Aug 21 17:26:59 2008
What is the effeciency per kilowatt hour for solar, wind, geothermal, nuclear and hydro power?
Q. What is the effeciency per kilowatt hour for solar, wind, geothermal, nuclear and hydro power?
Asked by Steffen - Sun Aug 19 20:34:07 2007 - - 2 Answers - 0 Comments
A. You have no idea what you are asking for, are you? Efficiency must be referred to something. Solar, wind, geothermal and hydro are free, because there is no charge for using it, i..e, infinite efficiency. Nuclear is the cheapest of fuels, compared to fossil ones. To build one, Solar is the most expensive, by far, because of the cost per kwh for the panels which also need inverters and batteries. Wind is the least expensive to build, but is erratic and also requires some sort or energy accumulation, like batteries or other compensating source. Hydro, nuclear and geothermal require huge investments and many years of planning.
Answered by mariskalen kampf Strudl v.Wurst! - Mon Aug 20 16:18:40 2007
Q. What is the effeciency per kilowatt hour for solar, wind, geothermal, nuclear and hydro power?
Asked by Steffen - Sun Aug 19 20:34:07 2007 - - 2 Answers - 0 Comments
A. You have no idea what you are asking for, are you? Efficiency must be referred to something. Solar, wind, geothermal and hydro are free, because there is no charge for using it, i..e, infinite efficiency. Nuclear is the cheapest of fuels, compared to fossil ones. To build one, Solar is the most expensive, by far, because of the cost per kwh for the panels which also need inverters and batteries. Wind is the least expensive to build, but is erratic and also requires some sort or energy accumulation, like batteries or other compensating source. Hydro, nuclear and geothermal require huge investments and many years of planning.
Answered by mariskalen kampf Strudl v.Wurst! - Mon Aug 20 16:18:40 2007
What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5 per kilowatt-hour?
Q. What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5 per kilowatt-hour?
Asked by brokeninboredom - Fri Jan 30 18:36:43 2009 - - 4 Answers - 0 Comments
A. 500 = 0.5 kw 0.5 * 8 * 7.5 = 30c
Answered by spot a - Fri Jan 30 18:43:03 2009
Q. What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5 per kilowatt-hour?
Asked by brokeninboredom - Fri Jan 30 18:36:43 2009 - - 4 Answers - 0 Comments
A. 500 = 0.5 kw 0.5 * 8 * 7.5 = 30c
Answered by spot a - Fri Jan 30 18:43:03 2009
What is the definition of a kilowatt hour?
Q. What is the definition of a kilowatt hour?
Asked by raaberle2@sbcglobal.net - Thu Sep 3 19:09:11 2009 - - 5 Answers - 0 Comments
Q. What is the definition of a kilowatt hour?
Asked by raaberle2@sbcglobal.net - Thu Sep 3 19:09:11 2009 - - 5 Answers - 0 Comments
A heater uses 20 A when used in a 100 V line. If the electric power costs 10 cents per kilowatt hour?
Q. rhe cost of running the heater for 10 hours is A. $0.22 B. $0.55 C. $2.20 D. none of these
Asked by princess_abecca07 - Tue May 5 16:43:10 2009 - - 3 Answers - 0 Comments
A. Power (W) = Current (A) x Voltage (V) 20 A x 100 V = 2000 W or 2 kW Energy (kW/h) = Power (kW) x Time (Hour) 2kW x 10 Hr = 20 kW/h $0.10 x 20 kW/h = $2 So the answer is D, none of these.
Answered by Manxie ue - Tue May 5 17:20:11 2009
Q. rhe cost of running the heater for 10 hours is A. $0.22 B. $0.55 C. $2.20 D. none of these
Asked by princess_abecca07 - Tue May 5 16:43:10 2009 - - 3 Answers - 0 Comments
A. Power (W) = Current (A) x Voltage (V) 20 A x 100 V = 2000 W or 2 kW Energy (kW/h) = Power (kW) x Time (Hour) 2kW x 10 Hr = 20 kW/h $0.10 x 20 kW/h = $2 So the answer is D, none of these.
Answered by Manxie ue - Tue May 5 17:20:11 2009
If I have an 850 Watt Power Supply in My Computer, is that 850 Watts per hour? Meaning .85 Kilowatt Hours?
Q. In other words, if I leave it on for ten hours a day, will that be 8500 Watts, or 8.5 Kilowatt Hours per day? So if it were 10cents per Kilowatt hour, it would take 85cents to power it a day? I'm checking because I'm moving into a second floor apartment next year and I have tons of computer equipment and I don't want this guys power bill to go through the roof without letting him know.
Asked by blakegadams - Wed Jul 4 23:01:29 2007 - - 4 Answers - 0 Comments
A. 850 means, how much power the power supply can give off or support up to... other words, the pc can run devices up to a total power usage of 850.. not how much it does an hour..
Answered by mxnakano - Wed Jul 4 23:06:31 2007
Q. In other words, if I leave it on for ten hours a day, will that be 8500 Watts, or 8.5 Kilowatt Hours per day? So if it were 10cents per Kilowatt hour, it would take 85cents to power it a day? I'm checking because I'm moving into a second floor apartment next year and I have tons of computer equipment and I don't want this guys power bill to go through the roof without letting him know.
Asked by blakegadams - Wed Jul 4 23:01:29 2007 - - 4 Answers - 0 Comments
A. 850 means, how much power the power supply can give off or support up to... other words, the pc can run devices up to a total power usage of 850.. not how much it does an hour..
Answered by mxnakano - Wed Jul 4 23:06:31 2007
whats the cost of producing one kilowatt-hour using coal?
Q. please help me! its for a project i have and i need help please!
Asked by Shortcake - Wed May 20 18:27:39 2009 - - 1 Answers - 0 Comments
A. I assume that you are intending to generate electricity. No simple answer here. Many factors go into the production of electricity from coal (Buss bar cost). Size of plant, geographic location and many others. Here is a spreadsheet that will give you some numbers for typical plants today (it has more than just coal).
Answered by Craigory - Wed May 20 20:19:28 2009
Q. please help me! its for a project i have and i need help please!
Asked by Shortcake - Wed May 20 18:27:39 2009 - - 1 Answers - 0 Comments
A. I assume that you are intending to generate electricity. No simple answer here. Many factors go into the production of electricity from coal (Buss bar cost). Size of plant, geographic location and many others. Here is a spreadsheet that will give you some numbers for typical plants today (it has more than just coal).
Answered by Craigory - Wed May 20 20:19:28 2009
How long is a kilowatt hour?How is it figured?
Q. How long is a kilowatt hour?How is it figured?
Asked by lena - Thu Nov 27 12:50:08 2008 - - 2 Answers - 0 Comments
A. One kilowatt hour is exactly 3.6 megajoules, which is the amount of energy transferred if work is done at a rate of one thousand watts for one hour. Ex: If a heater is rated at 1000 watts (1 kilowatt) and that heater is on for one hour then one kilowatt hour is used.
Answered by Turn Your Lights Down Low - Thu Nov 27 12:53:54 2008
Q. How long is a kilowatt hour?How is it figured?
Asked by lena - Thu Nov 27 12:50:08 2008 - - 2 Answers - 0 Comments
A. One kilowatt hour is exactly 3.6 megajoules, which is the amount of energy transferred if work is done at a rate of one thousand watts for one hour. Ex: If a heater is rated at 1000 watts (1 kilowatt) and that heater is on for one hour then one kilowatt hour is used.
Answered by Turn Your Lights Down Low - Thu Nov 27 12:53:54 2008
From Yahoo Answer Search: 'Kilowatt hour'
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