lodar
Member
In fact, the most optimal algorithm for maximizing income is neither all TBC nor all Self Powered. The best algorithm is to use TBC during peak and Self Power off-peak. With this algorithm, fine-tuning utility rate settings is moot.I would agree with using Self Powered mode for any NEM 3.0 customer, but for those on NEM2.0 and a net producer extensively using the Powerwall results in less exports to the grid and a lower Net Surplus Compensation amount at true-up.
During peak, you ideally want every Wh of solar to be going to the grid, earning at the highest rate.
At off-peak, you want to avoid “banking” grid power that you would have to pay back with NBC “interest”. Ideally, solar should be powering your home and charging your batteries back to 100% without grid help. Any excess off-peak solar can be dumped to the grid for a small gain, as there’s nothing more you can do with it.
The end result is effectively no grid draw, with no NBCs, and maximum revenue from solar exports during peak.
Of course, this only works when you have a daily solar surplus. For me, this is spring time before AC kicks in.