45kwh daily is huge unless you are using electric heat, hot water, fireplace or lots of incandescent light bulbs, if you are not running air conditioning.

Let's do the math:

If power equals voltage times current P = E x I, then I = P/E

Since power is 45,000 watts and voltage is 120 then 45,000/120 = 375 amps daily or 15.6 amps per hour. You need to try to figure out where that 15 amps per hour is being used.

The bad news is if you are being charged 15 cents per kwh and are using 45 kwh per day you are being charged $6.75 per day or $202.50 per month even without air conditioning.

Some actions people take to limit their kw consumption is to turn on the hot water heater only when it is needed (wash dishes at about the same time you are going to shower), turn off unnecessary lights, limit use of heat pumps or space heaters and not using the fireplace until you need some heat in that area. Also, exercise your generator monthly on a hot day in the late afternoon with the air conditioners and water heater on. Sorry if you already know all of this.

I always read the meter the same day as the park and always ask what their kwh charge is so I know at any time during the month how many dollars I have spent on electricity. I have had one time when the park misread the meter and was billing me for double what I used, until I showed them their error.

I also use $60 - $70 per month at twelve to thirteen cents per kWh.