Most set ups will include copper stranded wire, 10ga /4 ga battery/ maybe some 8 ga etc... if you have all copper would it be bad to include
some alum 4 ga ,very thick utility wire scraps 500+ amp from the bat to the inverter and use some homemade big lugs to accomodate the size. I mean the utility alum wire used in commercial construction and found in dumpsters sometimes,super stiff ,about 10 strands ...
an 1100 amp installation usually includes 2-3 of these buried direct in the dirt from the transformer to a large main panel.
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