Growatt SPH 6000TL3 BL-UP paralell

[tompas]

So Ive got a system with 3 arrays connected to 2 ea inverters. Recently I had my 2 Growatt MOD 6000TL3-XH 's replaced with 2 ea Growatt SPH6000TL3 BL-UP connected in paralell together with a Shinemaster unit.

One array has 18 panels at 405w pointing roughly south at 14 degrees incline. With my old inverters it peaked mid-day at 6500 Watts but with my new setup it peaks already at around 4500 watts. Anyone one has any idea why this happens?

 

[ijhammo]

Did you ever get to the bottom of this? What I have noticed is that you can have 2 similar 'sunny' days in a row and get quite different outputs. I think the only way to really look at the data is over a much longer period of time to determine if there really is an output difference

 

[ijhammo]

would also be interested in your experience with the Shinemaster Unit. Is it really needed to run the SPH in parallel?

 

[nickv6]

Splitting the array into 2 mppt might make a difference.
SPH8K and 10K in parallel here - got the issue that I can use them only either on the same battery or same grid, get a leak current shutdown otherwise. Any experience with that issue?