You multiply the power by time, ie kW*h
Use the equation. Kw x Hours = KWh so take 10Kw multiplied by 8,760 hours and you get 87,600 KWh. 10Kw x 8,760 hours = 87,600 KWh
1000 watts = 1 KW, so: 820 watts = 0.82 KW 0.82 KW * 24 hours = 19.68 KWH
First, divide watts by 1000 to get kilowatts: watts / 1000 = kW Then multiply kilowatts by the hours of usage to get kilowatt-hours kW * hours = kWh Finally, multiply kilowatt-hours by the cost per: kWh * (cost per kWh) = cost to operate
Multiply the gas units (imperial) by 100, then divide by three. This will give you how many kilo watts an hour. If you want a more accurate answers, multiply the gas units by 31.6. For metric metres (cubic meteres) multiply by 11.06 to get KWH
0.6 kW times 18 hours = 10.8 kWh.
First find how many kw are being used. For example, two items using 0.5 kw each add to 1 kw. Then, multiply by the hours it is being used. If we ran these two items for 1 hour we would end up with 1 kwh.
on idle, probably 0. KWh = KW x time (hours) . eg. 20KW for 5 hours = 100KWh (edit. ignore this answer i do not know what exactingly a idle motor is)
Use the equation. Kw x Hours = KWh so take 10Kw multiplied by 8,760 hours and you get 87,600 KWh. 10Kw x 8,760 hours = 87,600 KWh
KWH = KW times hours If you run a 750 KW load (lights, motors, so forth) for 1 hour, you have 750 KWH. If you run it for 1/2 hour, 750 KW X .5 hours = 375 KWH. If you run it for 5 hours, 750 KW X 5 = you do the math.
To convert 'kwh' to 'kvah' you first need to measure the length of time. You will then convert this amount to hours by dividing by 3,600. You will then divide this amount by the length of time.
Since there are 6366 hours in a year, 1930 kWh is about 0.3 kW per hour. (1930 / 6366)
1000 watts = 1 KW, so: 820 watts = 0.82 KW 0.82 KW * 24 hours = 19.68 KWH
If it's a 1 kW system, it means that it can deliver 1 kW at any given time. How many kWh you get out of it depends on how many hours of good sunlight you get. 10 hours of good sun = 10 kWh. 10 hours of half light, 5 kWh (kilowatt hours).
If you have a device of 1 KW, if this device work during an hour, this device will consume 1 KWH. If the device works during 15 min, it will consume 1KW(15 min/60 min)= 1(1/4)= .25 KWH. That is you will obtain(get?) KWH on the following way: KWH = time in hours X KW
kWh is usage, while kW is power. One kW for one hour is one kWh, one kW for 30 minutes is 0.5 kWh ASO
First, divide watts by 1000 to get kilowatts: watts / 1000 = kW Then multiply kilowatts by the hours of usage to get kilowatt-hours kW * hours = kWh Finally, multiply kilowatt-hours by the cost per: kWh * (cost per kWh) = cost to operate
1 kW = 1000 W 200 / 1000 = 0.2 So the 200 W bulb is also a 0.2 kW bulb. 0.2 x 30 = 6 So a 200 W bulb uses 6 kWh in 30 hours. Now all you have to do is find the price of a kWh, and take that times 6.