Unfortunately, I can't even take a stab at the load calculations based on the information you gave me. I can probably guess based on what I see in the main panel, but I don't know what's in your subpanel. I'd need to know the square footage of your home as well.
From what I see in your main panel, I'm going to venture a guess that load calculations aren't going to work in your favor with only 200A service, with 2 A/C units plus kitchen SABC's + disp/dish + laundry + spa tub...
Then you'll have another problem -- there is just no room in that panel. There are no tandem options for 100A breakers; like your 70A breaker, you'd need 2 full 1" spaces to place a 100A breaker there, which means moving multiple circuits to a new panel (or replacing that panel).
Thank you very much! I have the photos of the sub 70 AMP panel attached. My house is approximately 4,800 square feet.
On my Model X I went with the standard 48 AMP charger, however I want to wire the HPWC for 80 AMPS in order to future proof my install.
If my panel is full, what is the max amperage I can use without purchasing a new one? How much does a new panel cost? I also plan on purchasing the power wall in the future.
Here are some of the large loads on my panel:
1) Solar is 4.85 kw
2) I have not idea what F.A.U is
3) Kitchen (Microwave, Dishwasher, Oven) (Range is GAS, Heat is GAS)
4) I have two big AC's and one small AC
5) I don't have a spa so I don't know what the spa is for
6) My dryer is gas so laundry is not used.
7) Cadillac ELR (16 AMPS)
It's unlikely I would even go over 150 AMPS at night since the only two draws when my car would charge between 10PM - 8 AM are the cars charging themselves. Unlikely anything else would be running.
Since my panel is full, is it possible to install the HPWC with 100 AMP wiring but with a lower AMP breaker so in the future when I upgrade my panel I would simply need to replace the breaker?
Thanks Again!