Post #9428

Yesterday evening I went over to add an additional MPPT unit to the neighbor's system. The original design requirement was that we neded to make 10kw at solar noon in winter. Two victron 250/100 units would do that, but one got hot and let the magic smoke out and another one got taken out with it. We borrowed two spares from another guy and he wanted his units capped at 80% power. We saw that they didn't get hot at all. So while my guy got two units replaced under warranty, he ordered a 3rd unit. With three units installed and hobbled at 80% we can make 13.2kw most of the day. picture above is at 8:40 local time, just getting started.