eXodus
Solar Addict
- Joined
- Jul 27, 2020
- Messages
- 1,482
I'm just getting a bunch of quotes for my house Solar System. Most of them are Enphase Microinverters, which are AC coupled.
Now my question, can you do this DC? I want to do build a DIY power-wall anyhow. Cost aside.
I have a weird roof shape with shading, so one or two MPPTs for 8KW would struggle. Will very likely have the panels on 4 different plains of the roof with (two East, one south, one west)
What about one MPPT SCC per panel or say two panels per SCC?
Downsides: - lots more wires to run. more wire loses
Upside: Better tracking from each panel, output data from each SCC, redundancy, single panel or charge controller failures do not have a big impact.
What potential issues can you see?
Now my question, can you do this DC? I want to do build a DIY power-wall anyhow. Cost aside.
I have a weird roof shape with shading, so one or two MPPTs for 8KW would struggle. Will very likely have the panels on 4 different plains of the roof with (two East, one south, one west)
What about one MPPT SCC per panel or say two panels per SCC?
Downsides: - lots more wires to run. more wire loses
Upside: Better tracking from each panel, output data from each SCC, redundancy, single panel or charge controller failures do not have a big impact.
What potential issues can you see?