Why 48v, why not commercial DC, like 850? What are you looking at for kwh storage? A1000vdc buss, homemade or otherwise, would drop the buss rating down to about 300 A. Commercial grade inverters, such as 3-phase Delta PCS inverters are spec'ed for these situations.
On Fri, Dec 19, 2025 at 1:13 PM david quattro via RE-wrenches < [email protected]> wrote: > Hi everyone, > I am still helping an uber wealthy owner determine if he really wants > this much power. If he does, do any of you have experience sourcing a 48v > battery-combiner on the order of 4500 to 5000 amps? > I also want to get clear on how to best wire from batteries to combiner, > and from combiner to inverters. I read here on the Wrenches list about some > electricians who strategically sized conductor AWG so that resistance > matches, which seems straightforward once we get our components mounted and > accurate distances can be determined. Can anyone on list provide feedback > about that, I really appreciate it! > Thank you > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **[email protected] <[email protected]>* *Owner|Principal, VT Solar, LLC* *Celebrating our 34st Anniversary 1991-2025!!* dba Vermont Solar Engineering 802.559.1225
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
