Solar panels are a scam, page-306

Total power into your house is

Power from the battery + power from the grid

But you only have one value for current in your chart.

When the power is only from your battery, it is 2VI. Because you have to convert peak to peak values reported in that chart to RMS. That's where the factor of 2 comes from. I'm not going to get into why you need to use RMS calcs on an AC signal.

Don't believe me? Do that calc anywhere on your chart where grid power is zero, and the battery power isn't, and you will see it confirmed.

Do it on as many points in your chart as you like. Until you believe it's no longer a coincidence.

I don't know how stubborn you are, but please give it a try.

You only add grid power factor in the power calc if the power is coming from the grid, not when the power is coming from your battery.