D
davelondon
Guest
I'm planning a big expedition vehicle electrical system, centered around 57kWh of LiFePO4 in a 48v configuration, 2 x 10kW Victron Quattro inverters, and 8 x 500W solar panels. Here's a rough electrical layout:
I was planning on running 2 x Victron 250/60 48v MPPT controllers, but a friend has suggested adding an Enphase micro-inverter to each panel, and running the 240V AC output to my Victron inverters to charge my batteries. This seems to have a few benefits:
1) Panels are all completely independent, so no problems with shading
2) No MPPT controllers taking up space inside my truck
3) No high voltage DC to worry about (is ~200V DC more dangerous than ~200V AC?)
However, there are some disadvantages:
1) Costs more (~$150 per panel)
2) Electronics on the outside of the truck is not ideal (although nicely hidden under the panels)
Can anyone suggest any more pros and cons?
What would the overall efficiency be? I'm worried that with the microinverters I'm doing two separate voltage conversion steps (from the panels to 240V in the micro-inverters, and back to 48V in my Victron inverter). With the Victron MPPT controllers we're just doing one voltage conversion from the panels straight to 48V.
Would my Victron Quattro inverters be able to understand that this is solar power and display it as such on the display? Or would it look like I'm plugged into shore power?
I was planning on running 2 x Victron 250/60 48v MPPT controllers, but a friend has suggested adding an Enphase micro-inverter to each panel, and running the 240V AC output to my Victron inverters to charge my batteries. This seems to have a few benefits:
1) Panels are all completely independent, so no problems with shading
2) No MPPT controllers taking up space inside my truck
3) No high voltage DC to worry about (is ~200V DC more dangerous than ~200V AC?)
However, there are some disadvantages:
1) Costs more (~$150 per panel)
2) Electronics on the outside of the truck is not ideal (although nicely hidden under the panels)
Can anyone suggest any more pros and cons?
What would the overall efficiency be? I'm worried that with the microinverters I'm doing two separate voltage conversion steps (from the panels to 240V in the micro-inverters, and back to 48V in my Victron inverter). With the Victron MPPT controllers we're just doing one voltage conversion from the panels straight to 48V.
Would my Victron Quattro inverters be able to understand that this is solar power and display it as such on the display? Or would it look like I'm plugged into shore power?