Dwelling Load Calculation Help

[electricalintern]

The building use to be 5 separate apartments but now will be one penthouse.

All Panels are 100A/208V/1P each

However they are adding a lot more kitchen equipment

Kitchen Equipment
2 Dishwasher at 1200W each
2 Oven at 6000W each
3 Refrigerator at 1800W each
2 Washer/Dryer at 2100W each
3 Microwave at 1000W each
2 Instant Hot at 1300W each

Master Bathroom
2 Steam shower at 2400W each
1 Electric Fire Place at 1500W
1 Jacuzzi at 1800W

The HVAC system is going to remain and will be no changes.

So, can I use 220.83(A) for the calculation. Do I add the HVAC load at 100% after I use the demand factor for all the equipment listed above including general receptacle/lighting .

Are what is the best option to balance all the electrical panels to reduce the load down to fit all this equipment.

 

[MyCleveland]

Theoretical?
Are they teaching the NEC in high school?

First thought is how are going to deal with combining everything into a single meter?
Existing is a meter stack or wireway/meters/disconnects?

 

[electricalintern]

Theoretical?
Are they teaching the NEC in high school?

First thought is how are going to deal with combining everything into a single meter?
Existing is a meter stack or wireway/meters/disconnects?

Had a summer intern where my uncle works. He is a mechanical engineer but I fell in love with Electrical Engineer.

The landlord is going keeping all the meters sperate.

Hence why, I am not sure how to do the load calculation for each panel.

Since I'll probably connect the Kitchen Load to 3 different panels

 

[hmspe]

With multiple meters you cannot use the Optional Method from Part IV of NEC 220 because the dwelling unit is not supplied by a single feeder. You should use the Standard Method from Part III for each panel.

 

[MyCleveland]

Had a summer intern where my uncle works. He is a mechanical engineer but I fell in love with Electrical Engineer.

The landlord is going keeping all the meters sperate.

Hence why, I am not sure how to do the load calculation for each panel.

Since I'll probably connect the Kitchen Load to 3 different panels

Congrads on the intern work. Keep an eye on all ME's...if you choose electrical design they will be the bane of your existence, have been for me.

Map out your plan if you are going towards a degree.

On the meter issue, are you saying the new single tenant will have 5 meters to pay? You should call your local utility and discuss. More things to learn....it never stops.

hmspe, gave you direction for your calc. If you end up combining all services into one this will change.

Is the distribution a meter stack? You may have a problem if combining everything to one service if incoming is 3 phase and you end up with one 1 phase tenant with a large service. Another question for the utility. If no penalty for residential 3 phase you may want to feed the single tenant with 3 phase.

Best of luck on your journey.