Post #9652

Here's the first full month of solar for my neighbor's system.... look at this february vs last february. 1600kwh vs 359kwh this month. We had two screwups... 1)I didn't understand the failure mode of victron MPPTs and should not have connected all of them to all solar panels collectively. That has been resolved by separating the panels into groups for each MPPT and adding a 60amp fuse in line. Also victron replaced the two MPPTs under warranty. 2)we used ferules on the battery cable into the battery breaker and one of the wires partially pulled out causing the breaker to overheat. This meant that he lost 25% of his battery reserve and his system shut down around midnight. that has been resolved by fixing the wires and also programming his inverter to connect to the grid based on SoC AND low voltage. This system is so overpaneled that as the sun gets higher in the sky he makes more and more power earlier in the day.