At about 3:30 p.m., a California homeowner reported a Powerwall at 88% as the system produced 3 kW of solar, used 1 kW at home and exported solar while the house drew battery power. Reddit users suggested Savings mode; the owner later confirmed it was enabled.
The owner said the home was on SDG&E’s TOU EV 5 plan under NEM 1.0, with weekday peak pricing from 4 to 9 p.m., and later confirmed a 10% backup reserve. In Savings mode, the battery may prioritize rate arbitrage and export value over fully charging before peak or minimizing grid use. Commenters said Self-Powered would likely use solar for the home first, then the battery, with the grid used after the reserve threshold.
