Help choosing wire

[Megawatt]

I know, but Teletrix made a comment that has me confused. I can't find any evidence of Aluminum having a shorter lifespan or being inferior in any way.

I agree its a personal preference. Both do well when torqued correctly.

I will say this I’ve been doing electrical installations 30+ years and 4/0 aluminum is a b—— to bend in tight meter bases and is double the size of 2/0 copper which is allowed for single family dwellings and I’ve never had a corrosion problem with copper like I have seen on service calls that has aluminum wire. I work to hard to have to fight 4/0 aluminum in the middle of the night because the customer has lost a phase or the neutral which can cause a lot of damage when the neutral is open from corrosion. It’s legal but I don’t use it to build service installations

 

[Cookie]

I hear you I guess it might be more a local thing, around here everything is SEU AL- 4/0 or 2AWG.