Can the OP install a 400 amp main panel with on his existing service? Would the main breaker need to be 200 amp?
I have two 200 amp panels on 320 amp service, so I could theoretically pull over 320 amps.
Do you mind elaborating? Anything you could have done in hindsight to avoid the difficulty with PG&E?
Thanks Wayne, that all makes sense. With one EV I don’t come anywhere near 100A. If I get a second EV, I am probably still ok (using the charging connector that comes with Tesla MX and draws 32A and comfortably charges the car overnight). And if for whatever reason I need more than 100A, I can move the 90A EV sub panel back to the main panel. I understand 200A is better than 100 (twice as good!) but it would have been a cost with no benefit.If you have a 200A main panel with a 100A feeder to the Gateway, then you have to meet one of these two limits: (a) the other breakers (excluding the main breaker) in your main panel have to add up to less than 100A (per pole, so you could have (10) 20A single pole breakers, as long as they are evenly distributed among the two buses) or (b) your inverters behind the Gateway have to add up to less than 7.7 kW. For (b), solar inverters definitely count, and each Powerwall counts as 5.8 kW, unless you are under the 2020 NEC, or your AHJ reasonably allows the use of the 2020 NEC provisions on Power Control Systems, even if they haven't adopted it officially yet.
only 5500? they are trying to charge me $9550 with no powerwall.I have a pending solar roof+ 3 PW install pending in the SF Bay Area.
The main hold up to scheduling install at this point is me agreeing to a $5500 main panel upgrade charge. This was added after the initial site survey.
My advisor has yet to tell me why it needs upgrading. It is 8 years old, 200 amp service. He mentioned clearance from the gas main, but that was never an issue previously and it’s 4 feet from the gas main, which should be sufficient afaik.
Even if does need upgrading, the price seems steep. My local electrician mentioned a few months ago pandemic related parts supply issues, so maybe that’s a factor.
I don’t want to unnecessarily hold up the install. any advice is appreciated.
Only 50K for a kitchen remodel? Ours was closer to $100K. Like everything in construction, it depends on the scope (especially scope creep and repair of previous work to match modern codes), materials, and workmanship. Same thing with electrical work.This is kind of like one person saying "My kitchen remodel was 20k" and another person saying "Only 20k? I paid 50k for mine!" These are construction projects, so the work is not necessarily the same, even though the project (Main panel upgrade, Kitchen remodel) sounds the same.