question

alda avatar image
alda asked

MPPT PV charger limitation

I have system with 6000Wp of panels (two strings parallel. In each string 8x375Wp serial) connected to MPPT 400/100 PV charger. System is with two Pylontech US3000c batteries and with Multiplus II 48/5000/70-48.

My problem is that I can't see production from PC charger bigger than 3,6kW. Is this power limited by batteries where maximal charge current is 74A ? Or what can be reason? When I will switch on appliances is sume of 4kW, 3,6kW is directed used from PV charger and 0,4kW from batteries.

MPPT Controllers
3 comments
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

seb71 avatar image seb71 commented ·

When I will switch on appliances is sume of 4kW, 3,6kW is directed used from PV charger and 0,4kW from batteries.

In this case in theory the panels should produce more power.

But is the sky clear? Which direction are the panels facing?

0 Likes 0 ·
alda avatar image alda seb71 commented ·

Yes I also think so. Sky Is clear and direction is southeast.

0 Likes 0 ·
seb71 avatar image seb71 alda commented ·

Were you testing before noon?

Check the RS charger to see if the trackers are producing with similar power or not.

Any shade on any panel?

1 Like 1 ·
0 Answers