@MarshLover - hang on, have you actually checked what voltage your array's running at under load? I ask because on my narrowboat setup, I was getting similar ceiling issues and it turned out my...
@MarshLover - yeah, that's the issue right there. Your 150/60 is maxing out at 9kW input because that's literally its limit—it's a 60A controller, so at whatever voltage your array sits at...
What's your experience with seasonal variation, @PeakVanLifer? I'm on a narrowboat and my winter consumption's probably double summer — solar's dire December through February.
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