Solar

[wazzer]

hello iam about to put six panels on roof 2 carats of 3 I will be running dc cable to out building built to store solax hybrid 3.0 g4 inverter and 5.78 battery
Easy pv recommend 10 mm cable at 0.95 told drop
the cable will be 10 meters under ground in ducting and 5 meters up wall in 40 mm ducting to soffit eaves into loft the rest is outbuilding and connecting in loft
Would it be better to use 16 mm ad a safe option
ant thoughts
 Thanks

 

[binky]

No harm in running a larger cable, it will make the system marginally more efficient.

Are you sure 3 panels is enough to meet minimum voltage for MPPT to start up?

 

[wazzer]

Thank you
No I have 6 panels in total sorry about explanation
Regards

 

[binky]

Single string if panels?

 

[wazzer]

2 sets of 3 panels on either side of roof 2 string

 

[binky]

Looks like your inverter has a 90v start up voltage, so 3 panels is probably ok. What panels are you fitting.

 

[wazzer]

Looks like your inverter has a 90v start up voltage, so 3 panels is probably ok. What panels are you fitting.

440 watt jinko

 

[binky]

440 watt jinko

Got a data sheet?

 

[wazzer]

I think will be this one 430 sorry

 

[wazzer]

Hello sorry i was sent wrong data sheet
Regards

 

[wazzer]

I spoke to easy pv which i designed the system off
They recommended to connect the six panel together for initial start up even that it works with 2 sets of 3 panels
Thanks for your help