Question about Office Equipment & Supplies

For the 80W bulbs you'll be using 2 x 80 x 6 x 30 = 28800 W/hr = 28.8kW/hr.

For the 20W bulbs, it's 2 x 40 x 6 x 30 = 7200 W/hr =7.2 kW/hr.

The monthly saving is 21.6 kW/hrs, a saving of 75%.

Posted on Sep 04, 2010

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Posted on Jan 02, 2017

You likely mean this to be the 'Average' number of employees per day rather than percentage. However you need to work out based on hr's per day that each employee can work. Lets assume though that they work full time, 8hrs per day. Then you would work out as follows:

3223.5 /8 /28 /306 = 0.047 employees per day

If they only work 1 hr per day it would be:

3223.5 /28 /306 = 0.376 employees per day

Each employee would need to work:

3223.5 /306 = 10.53hrs per month

3223.5 /8 /28 /306 = 0.047 employees per day

If they only work 1 hr per day it would be:

3223.5 /28 /306 = 0.376 employees per day

Each employee would need to work:

3223.5 /306 = 10.53hrs per month

Mar 02, 2015 | Office Equipment & Supplies

Since 2011 the FTC has required that every TV display a yellow and black Energy Guide label estimating how much it costs to run for a year. The label assumes a price for electricity (11 cents/kWh) and a baseline usage (5 hours per day).

The cost is tiny. A typical label can read anywhere from $6 for 32-inch LEDs to $38 for 65-inch plasmas (PDF). Per year. That's from 50 cents to $3.18 per month.

The cost is tiny. A typical label can read anywhere from $6 for 32-inch LEDs to $38 for 65-inch plasmas (PDF). Per year. That's from 50 cents to $3.18 per month.

Aug 15, 2014 | Televison & Video

If the machines ice storage capacity is 26 lb per a day then that is all it will make in a 24 hr day Now this depends on water temp entering the machine, the ambient temperature around the machine and the condenser coil and fan is not dirty. Now the machine is capable of making 33 lb of ice in a 24 hour day but the storage bin capacity is only 26 lb if you don't remove any ice it will make only around 26 lb and shut off until it melts and causes the ice maker head to start.

Nov 26, 2013 | Scotsman CSW45 15" Ice Maker with 26 lb....

Look at your amps and multiply by volts. This will give you watts.

ex.motor label 115V/14.4A 230V/7.2A

Whether you are running on 115v or 230v you get 1,656 watts.

This converts to 1.656 KW (kilowatts)

Your power company charges you by the KW hour. I'll use

12 cents per kilowatt hour for example.

$0.12 x 1.656 = .1987

This rounds off to 20 cents per hour to run, so if you run the pump 6 hour a day,180 hours per month, the electrical cost would be

about $36 per month.

ex.motor label 115V/14.4A 230V/7.2A

Whether you are running on 115v or 230v you get 1,656 watts.

This converts to 1.656 KW (kilowatts)

Your power company charges you by the KW hour. I'll use

12 cents per kilowatt hour for example.

$0.12 x 1.656 = .1987

This rounds off to 20 cents per hour to run, so if you run the pump 6 hour a day,180 hours per month, the electrical cost would be

about $36 per month.

Jan 09, 2013 | Pool & Spa

This unit uses 1500 Watts (1.5 kW) in one hour at its maximum setting. (12.5 A * 120V AC) The total cost will depend on how long the heater is on each day and the utility charges at the time of use (for example, if you have day/night rates).

The manual is available here: http://www.kaz.com/kaz/support/manual/?ProductManualAction=renderProductManualById&ProductManualId=fc5e11ee85619a5101b4c15f217911d6 .

I hope this helps.

Cindy Wells

The manual is available here: http://www.kaz.com/kaz/support/manual/?ProductManualAction=renderProductManualById&ProductManualId=fc5e11ee85619a5101b4c15f217911d6 .

I hope this helps.

Cindy Wells

Apr 04, 2011 | Honeywell HZ519 Baseboard Heater

Wattage is a term used to express magnitude of power. A common use is to define the electrical power consumption of your home appliances (check the labels). For example, look at the back label of your kitchen toaster. It might read 120 volts, 60 Hz, and 1200 Watts. The 1200 Watts is the power drawn by your toaster when you turn it on. You can get that (Watts) information for any appliance or device that runs on electricity in your house. That's important because that is the unit of measure the electric company uses to charge you in your electricity bill. The electric company bills your electric consumption in kilowatt-hour (KWH). All they are doing is calculating the watts by the thousands (that's the meaning of "kilo") for every hour you have your appliance turned on. The amount 22 cents per kilowatt-hour is close to how much the electricity is costing today. Back to your toaster, 1200 watts is equal to 1.2kilowatts. If you are using your toaster every day for an hour your monthly consumption is 1.2KWH times 30 days equals to 36KWH. That means at 22 cents per kilowatt-hour your toaster is costing you (36KWH times 22cents/KWH) $7.92 on that month. That's the toaster alone, now you can repeat this exercise for every appliance or device using electricity in your home. Start by just doing an inventory of each, do a log with four columns: (1)Name of the appliance, (2)Location, (3)Watts, and (4)Watts/1000 (to get the number in KW). Make a fifth (5) column and call it Hours. Make a sixth (6) column and call it KWH. Then sit down to estimate (think) for how many hours __per month__ each device is turned on. Now multiply each value of column 4 by its corresponding hour number in column 5. Write the results in column 6. Add the results of column 6 and voila! You just have a pretty good estimate of the total KWH consumed in your home in 30 days. Multiply that by $0.22 (or get the actual cost per KWH from your electric service company) and see how close you are to the actual billing. Hope there is no surprises.

There are the science and engineering definitions of the term watt you can research to come to the same conclusion hereto, I just laid a practical perspective.

Dec 18, 2010 | GE Microwave Ovens

Paragon 8145-20 is a 240V defrost timer

It is probably not best choice for water heater timer

Timer initiates defrost cycles each 4 hours.

A water heater timer should have more scheduling options.

-For example estimates show average run-time for water heater is 3 hours per day, depending on incoming water temperature, thermostat setting, and number of gallons used.

-To save money using water heater timer, you have to schedule times carefully so water heater runs less than 3 hours per day.

-Now your average electric water heater heats about 20 gallons per hour.

-Average shower uses 4-9 gallons hot water, so water heater needs to run 15-30 minutes (15 summer, 30 winter)

-Average bath uses 12-15 gallons hot water so water heater runs 45-60 minutes

-But lets say you run water heater for 1 hour and make 20 gallons of hot water. Then you take a shower, expecting hot water to remain in tank.

-Here's the problem ... cold water entered the tank to replace the shower water ... and the new cold water is cooling the rest of the tank.

-So a timer means scheduling hot water to match shower and bath events. For example taking shower and bath in immediate succession.

-Or set the timer for each individual hot water event ... for example set timer for 1/2 hour for shower, and later timer turns on 1 hour for bath, or 1-1/2 hr for 2 baths, etc

-> The flexible programming described above is not a characteristic of defrost timers.

I suggest Intermatic WH-31 240V or Intermatic T-104 240V or GE 15207. These are mechanical repeat-24 hour timers with manual override where each day has same schedule.

Digital programmable timers like Intermatic EH40 offer 7-day, 40 event programming. Weekends and weekdays can be different.

To see several box-type timers:

http://waterheatertimer.org/Boxtype.html

It is probably not best choice for water heater timer

Timer initiates defrost cycles each 4 hours.

A water heater timer should have more scheduling options.

-For example estimates show average run-time for water heater is 3 hours per day, depending on incoming water temperature, thermostat setting, and number of gallons used.

-To save money using water heater timer, you have to schedule times carefully so water heater runs less than 3 hours per day.

-Now your average electric water heater heats about 20 gallons per hour.

-Average shower uses 4-9 gallons hot water, so water heater needs to run 15-30 minutes (15 summer, 30 winter)

-Average bath uses 12-15 gallons hot water so water heater runs 45-60 minutes

-But lets say you run water heater for 1 hour and make 20 gallons of hot water. Then you take a shower, expecting hot water to remain in tank.

-Here's the problem ... cold water entered the tank to replace the shower water ... and the new cold water is cooling the rest of the tank.

-So a timer means scheduling hot water to match shower and bath events. For example taking shower and bath in immediate succession.

-Or set the timer for each individual hot water event ... for example set timer for 1/2 hour for shower, and later timer turns on 1 hour for bath, or 1-1/2 hr for 2 baths, etc

-> The flexible programming described above is not a characteristic of defrost timers.

I suggest Intermatic WH-31 240V or Intermatic T-104 240V or GE 15207. These are mechanical repeat-24 hour timers with manual override where each day has same schedule.

Digital programmable timers like Intermatic EH40 offer 7-day, 40 event programming. Weekends and weekdays can be different.

To see several box-type timers:

http://waterheatertimer.org/Boxtype.html

Sep 29, 2010 | Paragon 8145-20 Defrost Timer

Mixing different AH rated batteries, different ages of even the same type battery is a bad idea. The new batteries will be effectively reduced to the equivalent of your worst battery.

Jun 24, 2010 | Sunforce 11260 Pure Sine Wave Inverter

To determine the cost of using this air conditioner, you will need to find out what your electric company charges per kw/h. This is the standard unit that electricity is charged for. Next determine the wattage of the air conditioner. This should be found on the unit name plate. If you can not find the wattage by the name plate, the take the voltage and multiply by the amperage, this will give you watts. Next multiply the wattage by 24. (watts per hour x 24 hours) Finally divide this number by 1000. This will give you the total Kw that the unit will use in a 24 hour period. If you multiply this number by the cost per Kw that will give you the operating cost of your unit for one day.

ex. electric company charges .25/Kw The unit uses 1000 watts 1000 x 24 = 24000 watts 24000/1000 = 24 Kw 24 Kw x .25/Kw = $6.00 day

Note: all figures shown above were randomly generated in my head, and have no correlation to your calculations. Hope this helps.

ex. electric company charges .25/Kw The unit uses 1000 watts 1000 x 24 = 24000 watts 24000/1000 = 24 Kw 24 Kw x .25/Kw = $6.00 day

Note: all figures shown above were randomly generated in my head, and have no correlation to your calculations. Hope this helps.

May 04, 2010 | Heating & Cooling

1500w / 1000w = 1.5 kwh. Every hour you run (assuming it is at 100% peak power) you use 1.5 kw. Just multiply that rate by how much it your power company charges per kwh.

Estimating high at 10 cents per kwh it would be $1 for every 10 hours you run the heater, or $2.40 per day, or about $72 per month if you ran it 24/7 for 30 days.

It is FAR cheaper to use these types heaters to heat one small room than an entire apartment or house if you are only in one room the majority of the time.

Estimating high at 10 cents per kwh it would be $1 for every 10 hours you run the heater, or $2.40 per day, or about $72 per month if you ran it 24/7 for 30 days.

It is FAR cheaper to use these types heaters to heat one small room than an entire apartment or house if you are only in one room the majority of the time.

Dec 12, 2008 | Lasko Ceramic Heater

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