Question:

I have a 17500 kw generator how many kwh will it put out?

by Guest59363  |  earlier

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i have a house on average that uses 77000 kwh will my generator run it

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  1. Your generator is probably rated 17500 watts.  That's 17.5 kW.

    If it runs flat-out at 100%, it will produce 17.5 kWh for every hour of operation.

    If your house is using 77000 kWh, I hope that is an annual value.  77000 ÷ 12 = 6416 per month.  That is a very high number.  Either you've got a really big house, or you're growing dope in the basement.

    In any event, you need a fuel supply that can keep the generator operating.  I will assume you're using natural gas, so you don't have to worry about the logistics of refueling, replacing propane tanks, etc.

    You need to measure the highest rate of consumption in your home.  If you're averaging more than 6000 kWh a month, it is possible that your demand may exceed 17.5 kW at times.  Contact an electrician and have them measure the amperage when you've got all the stuff running that you want to operate while on a generator.


  2. I think you mean a 17,500 Watt, (17.5 KW.) generator,

    and a house that uses 77 KWH per month.

    (77000 would average over 400 amperes in load at 240V.)

    A 17.5 KVA generator should run the average residence quite

    handily, provided you avoid letting heavy loads run concurrently.

  3. Depends on what length of time we're talking for these 77000 kwh. If the house uses 77000kwh every 5 seconds or longer, you're fine.

  4. OK, lets make sure the units are right.  I think what you have is a 17.5 Kilo Watt generator.  A 17,500 kilowatt generator is something you would find in a very large powerplant and would be bigger than your house.

    KW is a measure of ouput, the actual power is over time.  So a 17.5 KW generator over 1 hr puts out 17.500 KWh...which is a unit of power and is how the utility charges you.

    So you house uses 77 kwh, I'm guessing per day or something, so divide it by 24 to get the average draw of 3.2 kW.  Problem with this is that you have peak power when you run the AC or toasters or such so there are hours you probably run 3x the typical load at late night you are 0.1x typical load.  As long as your peak draw is less than the rated 17.5 kW you should be OK.  Homes typically are wired for 200 amp service, with 120V push this gets your max possible usage at 24kW, but it is almost never all used, I'd say 100 amp draw is max which would get you to 12kW and safe

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