PV Design Question

[rushyn6]

I have a house that will accommodate 6 panels west facing 3 south and 3 east. I have been taught that this may require three inverters.
Other than solar edge (they are sold out at present) what would be the best way to arrange this installation to maximise the output but still make it economic to do. Panels i can hold of get are REC 235 BLK eu.
I have done one installation , but it was straight forward . All company technical help lines are engaged for obvious reasons.
Any advise is greatly appreciated.

 

[moggy1968]

I think you'll struggle with the low output on your S and E strings wired into seperate MPPTs.
I would go for a dual MPPT inverter but connect the South and east together through a combiner (so they are in parallel) into one MPPT then the West string into the other MPPT.
That will stop the reduce current in the East string dragging down the current in the South. Current is more affected by shade than voltage.
3 inverters would probably make this financially non viable.
It's not an ideal scenario but I would say thats your best compromise

 

[tommac1]

You could try using Enecsys micro inverters, one per panel. Dont know if your panels are compatable but give them a call. They are very helpful. You do need to pass a telephone interview with them to be able to buy any.

 

[SRE]

Danfoss have some new inverters out with 3mpp not sure if they will go as low as 3kwp but maybe worth a try.

 

[mydigitalhome]

Enecsys micro inverters would be the ideal solution.

 

[moggy1968]

thinking about my solution you would need to check the minimum input voltage was adequate

 

[powervan]

danfoss!! u not having my 2 that ive beeeen promised!!!!!!!!!!!!!!!