On just one PW, good luck.
That's real helpful... I didn't say I want to be completely off the grid - did I? All I want to do is maximize the $ benefit. I can do that with 1 PW2.
Depending on how "recent" your install is, the algorithm might not have learned your usage profile well enough to do the projections.
Advanced mode has two options: Balanced and Cost Savings.
According to Tesla's descriptions of the two modes, Balanced will give you the higher self powered rating.
That is what I use. I would recommend leaving it on Balanced for at least two weeks and then reporting back to us.
I've had the system active since Christmas 2020. I'll try the Balanced setting and let you know; Thx for this tip. Just fyi - last night, I used the 'Self-Powered' option - and the single PW2, lasted fine from sunset to sunrise the next day, for me (and the PW2 ended up at about 40% capacity, by the sunrise). No power used from the grid at all.
I recognize I got lucky, we are approaching peak summer; And as fall/winter sets in, the dynamics will be different. Also, if on super-hot days in summer, I end up using the central-AC at night - it's going to take power from the grid.
No. There are two different measurements going on. One is measuring the value of energy when you give it to the grid in $. The other is the total amount of kWh that you produce vs use during your yearly (prior to true up) period. This is where NBCs and other factors are considered.
So you not only have to consider the time value of the energy you use and provide, but you need to be aware of how your total energy usage affects how much you pay too.
And it can get even more complicated if you are on a rate plan that is tiered but I have little understanding of how those work with solar and they are going away anyway. And you are on the TOU plan.
Thank you - the system does seem a bit opaque for average consumers to try and maximize. Multiple factors at play - and as many of you have said before, there's no single answer that fits all.
Also - I have only had a single scheduled power black-out - in the last 5 years that I've owned my house. So I'm comfortable keeping my reserve capacity at just 35%. And therefore, my primary objective is $.