Hi all,
I know these questions appear ad nauseam online, however, I would appreciate people that understand this stuff to take a quick review of my proposed system.
I have a AC200L that I currently have hooked up to two Renogy 200w panels (6.46 A, 31v) (linked below), in series. This has mostly worked fine, but I have found I need more solar charging early in the morning. My thought was to add another string of the same panels in a different location in the yard and have those wired in parallel with the existing string. This would allow the afternoon sun to power one string and morning sun to power the other string. (there are trees that make having a south string of four panels not feasible to do it all in one string).
The math I have shows this would work but it would potentially over-amp the AC200L by ~5.8 amps. I’ve read that the bluetti will only accept the amps that it can use so over-amping is not as bad as over volting the system.
So the question is, does this sound like it will work? And if so, where should I put fuses in the system to make it safe? Should there be a fuse on both strings before they enter the Bluetti (one on each string) to protect the shaded panel string, or should I put a 15 amp fuse after the two strings join together before it enters the bluetti to prevent it from going over 15 amps?
In theory, it would not ever go over 15 amps if I’m truly getting shade on one string while the other is in full sun, but I want to make sure I’m still safe with fuses incase that were to ever happen mid-day (unlikely).
Thanks!
Andy
