I am having an issue with my Deye 8kW hybrid inverter (SUN-8K-SG01LP1-EU)
Problem:
After the battery reaches 100% charge, the PV power output immediately drops from 5-7kW to 0.15-0.5KW, even on clear, sunny days. Even if my house is using 3kW, the solar is curtailed to below 0.5kW, and 2.5kW will get purchased from the grid. This happens every day as soon as the battery reaches 100%. The solar output will be strong only before the battery reaches 100% charge.
System Details:
8kw hybrid inverter, 8.8kwp panels, 14.3kw lifepo4 battery, no net metering.
What I've tried:
I tried both "Batt First" and "Load First" in Work Mode 1, but it didn't fix the problem.
Pictures Attached.
Problem:
After the battery reaches 100% charge, the PV power output immediately drops from 5-7kW to 0.15-0.5KW, even on clear, sunny days. Even if my house is using 3kW, the solar is curtailed to below 0.5kW, and 2.5kW will get purchased from the grid. This happens every day as soon as the battery reaches 100%. The solar output will be strong only before the battery reaches 100% charge.
System Details:
8kw hybrid inverter, 8.8kwp panels, 14.3kw lifepo4 battery, no net metering.
What I've tried:
I tried both "Batt First" and "Load First" in Work Mode 1, but it didn't fix the problem.
Pictures Attached.