I am (like a lot of us) doing a dual alt/dual battery system.  70 amp
alt as a main with a 20 amp alt as an Aux.  In thinking about the bus
setup and looking over Brent's list (thank you Brent), I was wondering
if an essential bus is really essential.  If I split  the loads
between the main and aux systems and have a crosstie , the only thing
an essential bus gives me is a list of items that I do not want to
shed.  Granted this is automatic, but does add a little to the
complexity.  I am planning on doing something like Bob Nuckolls' Z-14.

I'd like to hear what others have done or think.

Dan Ballin
LEG2 #286
Not as far along as I want to be, but having fun