well i suspect that tesla is configuring PW2 in this way in the presence of solar so that people don't run afoul of the rules for the ITC and SGIP. but who knows, maybe it is a hard limitation as scrambler suggests.
the weather situation for me is pretty reasonable. there are maybe 14 days out of the year that i need to run the AC. if the outage happened during those times i'd just suck it up. realistically these PGE outages will probably take place in the fall or the spring, and most likely in the fall. during that time there's generally no morning fog and although the sun is a bit lower, my system can generate around 75% of what it generates in the middle of the summer... so i can probably get by with 2 powerwalls.
the weather situation for me is pretty reasonable. there are maybe 14 days out of the year that i need to run the AC. if the outage happened during those times i'd just suck it up. realistically these PGE outages will probably take place in the fall or the spring, and most likely in the fall. during that time there's generally no morning fog and although the sun is a bit lower, my system can generate around 75% of what it generates in the middle of the summer... so i can probably get by with 2 powerwalls.
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