I think the button is unique to the PW 2+. To shutdown the solar system and activate the mid circuit interrupters on the roof you need to cut power to the inverter. Since the PW 2+ had an integrated inverter you can't use a normal blade disconnect (or the breaker) to cut power to the inverter since it can be powered by the PW 2+ internally.You are lucky that your city has better taste. Do you have PW? The bozo nose is for shutting off ESS.
Forget running your AC - I would be worried about STARTING your AC, with just one Powerwall, in an off-grid/outage scenario.Another PW would be nice and ideal but everything is out of my pocket since I can't get the SGIP rebate. The only thing I have to run is AC but I will try to minimize its usage. Stove, oven, dryer, furnace and water heater are all gas. I have also installed a wholehouse fan myself and my AC usage is way less now in the evenings unless it's very humid outside.
My AC's LRA is 79. I have checked with Tesla, are they doing whole house backup for my 1 PW+. They confirmed it. I also heard that PW+ has soft start built in, I could be wrong.Forget running your AC - I would be worried about STARTING your AC, with just one Powerwall, in an off-grid/outage scenario.
A single Powerwall can supply 30A. That's it. The only way to increase your amperage is to add more Powerwalls.
Some AC compressors can require more than 100A (!) or more to start. It's a specification that can be found on your compressor called LRA, short for Locked Rotor Amps. So when your compressor tries to start, it will try to draw 100A (or more), and your lone Powerwall will give up and shutdown, and now your entire house is down hard.
So, check your AC compressor's LRA! If the LRA is low, like 20A or so, you're (probably barely) OK. Otherwise, there are several choices:
1. Add more Powerwalls (thereby increasing the max amperage your system can deliver).
2. Exclude your AC compressor from your backed up loads. This means you won't have any air conditioning during an outage. But, you won't overload and shutdown your system either.
3. Replace your AC compressor with a more modern compressor with a low LRA.
4. Get a "Soft Start" capacitor for your compressor. These will store hundreds of amps in advance, so that when your compressor starts, it will draw that huge surge of power from the capacitor and not your Powerwall.
5. Do nothing and drink heavily.
Me? I have two Powerwalls and a hog of a compressor (160 LRA) with a Soft Start. Starts with no problems whatsoever.
None of them, either. On my old PV system installed in 2000 I had a blade disconnect, but that was removed along with the rest of that old PV system as the Solar Roof was installed.So you just have normal blade disconnect(s)?
Yes, when I get a moment I plan to make a proper post with photos and some extra tidbits I expect will be of interest.Need pics of your new roof!
None of them, either. On my old PV system installed in 2000 I had a blade disconnect, but that was removed along with the rest of that old PV system as the Solar Roof was installed.
Yes, when I get a moment I plan to make a proper post with photos and some extra tidbits I expect will be of interest.