AntronX wrote: »
Also connecting 18 panels in series for 372 Vmp versus 6 parallel strings of 3 in series will eliminate those combiner boxes and will use 6 times less copper.
Now the big question to DC converter engineers: is there a way to design 250 - 600Vdc to 48Vdc MPPT converter with 96 - 99% conversion efficiency?
mike90045 wrote: »
I've got 5, stackable, DC-DC converters parked in my house just for this. 400V down to 24V, 500W each. It won't do my entire array capacity, but it could keep me going if the grid died. about 90% each, if i recall righthttp://www.powerconversion.com/products/websheet/45/AIF25