Need help w/ figuring Existing load calculation based off of 220.87

[oldsparky52]

Demand is essentially an instantaneous number so you would never divide by a unit of time to arrive at the demand number. I say essentially because utilities normally show the peak demand over a short time period, often 15 minutes.

Do you think that 1240 might be the highest 15 minute duration?

 

[CustomElectricLLC]

I have not seen anything from the OP telling us the service voltage. We also don't know if this is single phase or three phase.

Sorry guys I left out the key info which is voltage.

It’s a 3ph 120/240V delta


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[don_resqcapt19]

My guess would be that the column named "kw usage" with two digit numbers is the demand, but that is just as guess.

 

[kwired]

Do you think that 1240 might be the highest 15 minute duration?

Probably highest demand during any 15 minute period during the billing cycle. Demand of 1240 kW could have only lasted for 30 seconds, but happened within a 15 minute cycle of data analysis. Not printed on monthly billing but their data and software likely could generate further reports that can tell you exactly when that 15 minute cycle was if you are interested in that data for some reason, this won't tell you the exactly when that 30 second peak occurred but narrows it down much more than "it happened during month of XXX".

 

[Iron_Ben]

My guess would be that the column named "kw usage" with two digit numbers is the demand, but that is just as guess.

Yes, this must be the case. September 2018 had the highest demand of any of the months listed at 50 kw. If we “assume” a p.f. of 0.8, then 62.5 kva on this 240 volt three phase service is 150 amps. That’s the highest value (averaged over a 15 minute interval) for the 23 months shown. It is, we are told, an 800 amp service, so that seems reasonable.

The presentation of data from the POCO is mind blowingly poor.

 

[electrofelon]

The KWH column is the actual meter reading. "KWH usage" is the KWH used during that billing cycle. There is a 40 multiplier presumably from the CT's. I think the decimal point is missing for the "KW" fields. If you divide those by 1000, and multiply by the multiplier of 40 you get the "KW usage" or demand.