I've just had my new 3 Power Wall 2's turned up with my existing 16KW of solar and I've begun playing with the modes. I'm wondering if anyone has done an analysis and knows pros and cons of Self Powering versus trying to optimize TOU ( PG&E E6 ) using the advanced Time Based Control.
I was also wondering about thoughts on modes combined with reserve power levels given I'm in a high risk fire area and high risk of PG&E power shut off to avoid fire risk. There has always been a few days notice before a PG&E power shutoff suggesting I could switch modes just before the shutoff to get a high charge. I'm also wondering if storm watch includes power shut offs given its typically done before a high offshore wind event.
I have been running a few days in self powered mode and I've used no PG&E power easily and this morning my powerwalls had 30% charge left when the sun came up. So my power generation now in September exceeds my nightly needs. But that suggests I'm not using the power wall capability to its maximum when I've got PG&E power. It also suggests I should be ok when I need backup.
When I began to play with setting the TOU in advanced, I realized my PG&E E6 TOU is in summer peak from 1PM till 7PM which is roughly me best power production. That means most of my solar power would be pushed into the PG&E grid to get credit for the peak E6 rate. But that implies my power walls might be starved since only power production before 1PM would be used for charging. But I could cheat and set the begin of the TOU to say 2 or 3PM so as to tweak things to get a reasonable power wall charge.
I'd be curious on peoples thoughts on the pros and cons of the modes given my situation and if tweaking the advanced TOU can be used to find a middle ground ... Or am I missing anything significant?
thanks
I was also wondering about thoughts on modes combined with reserve power levels given I'm in a high risk fire area and high risk of PG&E power shut off to avoid fire risk. There has always been a few days notice before a PG&E power shutoff suggesting I could switch modes just before the shutoff to get a high charge. I'm also wondering if storm watch includes power shut offs given its typically done before a high offshore wind event.
I have been running a few days in self powered mode and I've used no PG&E power easily and this morning my powerwalls had 30% charge left when the sun came up. So my power generation now in September exceeds my nightly needs. But that suggests I'm not using the power wall capability to its maximum when I've got PG&E power. It also suggests I should be ok when I need backup.
When I began to play with setting the TOU in advanced, I realized my PG&E E6 TOU is in summer peak from 1PM till 7PM which is roughly me best power production. That means most of my solar power would be pushed into the PG&E grid to get credit for the peak E6 rate. But that implies my power walls might be starved since only power production before 1PM would be used for charging. But I could cheat and set the begin of the TOU to say 2 or 3PM so as to tweak things to get a reasonable power wall charge.
I'd be curious on peoples thoughts on the pros and cons of the modes given my situation and if tweaking the advanced TOU can be used to find a middle ground ... Or am I missing anything significant?
thanks
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