I Reverse-Engineered My Solar Inverter API to Export 5kW to the Grid
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I Reverse-Engineered My Solar Inverter's API to Export 5kW to the Grid — Here's What I Found TL;DR: Solplanet/AISWEI hybrid inverters have a hidden "Custom mode" (mod_r=4) that enables force grid export. The documented TOU mode (mod_r=5) is broken on current firmware. This took 12 hours of debugging to discover, and the fix is 3 lines of code. Last week I installed a 46kWh battery system with a Solplanet ASW12kH-T3 hybrid inverter. The goal was simple: charge from solar during the day, expo