HighTechLab
AKA Dexter - CTO of Current Connected, LLC
- Joined
- Sep 23, 2019
- Messages
- 1,672
I came up with a concept for a massive system, that I'm considering having pre-designed for customers. Based around LF quattro inverters, the goal on this is for someone off-grid that is unable to reduce their system demand and is wanting to run everything electric. Supports adding a generator quite easily also.
Having 20kw of solar for an 80kwh battery bank, the thought is this should be sufficient to recharge the bank within 4 hours of sun, which is pretty average across the board.
40kw of inverter in split-phase +parallel to give some major output capability.
16 SOK 48v server rack batteries = ~80kwh battery
4x Victron Quattro 10k's = 40kw (120kw surge)
4x Victron MPPT RS 100a = 20kw solar
3x Lynx Distributors with a bunch of fuses
1x Cerbo GX
A few notes:
What stands out to you?
Having 20kw of solar for an 80kwh battery bank, the thought is this should be sufficient to recharge the bank within 4 hours of sun, which is pretty average across the board.
40kw of inverter in split-phase +parallel to give some major output capability.
16 SOK 48v server rack batteries = ~80kwh battery
4x Victron Quattro 10k's = 40kw (120kw surge)
4x Victron MPPT RS 100a = 20kw solar
3x Lynx Distributors with a bunch of fuses
1x Cerbo GX
A few notes:
- Victron requires all cables to the Quattros be equal length when used in a multi-inverter cluster. We dispersed the battery interconnections within the inverter connections so that we could reduce the load on the busbar and avoid having 1200a through a single point.
- The SOK's have internal shunts/monitoring, so that would handle the SOC% and current measurement calculations
- Solar panels are TBD, I just pulled in a standard block from a different diagram I made
- Equal length battery cables for even current sharing. 4/0 to Lynx (400a max of batteries), 1/0 from group 1-2 to group 3-4 (200a max), 2awg from 1 to 2 and 2awg from 3 to 4 (100a max)
What stands out to you?