Re: Benefits of 48v over 24v battery system?
It's the voltage you're missing.
790 amp hours * 48V = 37.9 KWh, or about 19 usable at 50% Depth Of Discharge.
1185 amp hours * 24V = 28.4 KWh, or about 14 usable at 50% DOD.
So you get to store an additional 5 KWH (usable) in the new bank, as well as being able to use smaller wire and smaller breakers for the same power (at higher voltage, but lower current).
Last edited by Ecnerwal; March 2nd, 2009 at 11:31 PST.
Offgrid non-system consisting of Kohler and Northern Lights generators plus years of fiddling with what panels - inverters - batteries to buy when I finally pry my wallet open and get going on that. Likewise a radiant floor which has air in the tubes, waiting for me to sort out the solar and connection to the cooling systems of the Kohler and Nothern Lights (which might as well provide heat while they are burning fuel to make electricity). In progress, very slowly in progress - but not in debt.