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EG4 6000xp as house UPS?

SMcNish

New Member
Joined
Jan 20, 2024
Messages
16
Location
PNW, Washington state not DC.
Well, I’m not a complete noob, but very close… I think I know the answer (which is no), I am wondering if the 6000xp inverter can be set up as a house UPS for when we unexpectedly loose power?
I have installed two 6000xp inverters and six Lifepower batteries that are connected to an electrical panel with a manual transfer switch; the 6000xps are connected to the grid for charging batteries/pass through.
I know I could just feed everything through the grid then flip the transfer switch when the power goes out, or let the system run in automatic mode. My wife was wondering so there wouldn’t be any power interruptions or running the batteries through cycles that aren’t needed (there are no “off hours” where power is cheaper).
Thank you in advance for any help, I’ve learned a lot from a ton of help on here.
 
this is how we have set up my son's dual 6000XPs

as a UPS

we have installed both grid and backup outlets in the rooms where the inverters are. they feed a combiner panel. Circuits go from there around the room where freezers will go and where the sump pump is

In addition we have a 4 awg circuit that exits the combiner panel via the main 70 amp breaker and goes to a grid panel with a feeding breaker interlock.

A grid fed 125 amp breaker normally back feeds this panel. Its main 125 amp main breaker then feeds the original house panel in the garage. The 1st 125 amp breaker is interlocked with the 70 amp breaker fed from the inverter's combiner panel

switching those 2 interlocked breakers and he can run the entire house on grid (normal) or on battery UPS operation

The inverters are also grid fed by an upstream grid panel nearby. Thus, via settings he can program for pass through and run the entire house through the inverters with battery operation if the grid fails


grid runs the house via bypass and only when the grid fails will the batteries kick in through the inverter
just need to watch your loads, that they don't go too high


now on my house, I ALWAYS run the house on my inverter and will use the grid to charge my batteries with a Chargeverter when the battery gets low. I do not use bypass as my grid breaker to the inverter is always off these days
 
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this is how we have set up my son's dual 6000XPs

as a UPS

we have installed both grid and backup outlets in the rooms where the inverters are. they feed a combiner panel. Circuits go from there around the room where freezers will go and where the sump pump is

In addition we have a 4 awg circuit that exits the combiner panel via the main 70 amp breaker and goes to a grid panel with a feeding breaker interlock.

A grid fed 125 amp breaker normally back feeds this panel. Its main 125 amp main breaker then feeds the original house panel in the garage. The 1st 125 amp breaker is interlocked with the 70 amp breaker fed from the inverter's combiner panel

switching those 2 interlocked breakers and he can run the entire house on grid (normal) or on battery UPS operation

The inverters are also grid fed by an upstream grid panel nearby. Thus, via settings he can program for pass through and run the entire house through the inverters with battery operation if the grid fails


grid runs the house via bypass and only when the grid fails will the batteries kick in through the inverter
just need to watch your loads, that they don't go too high


now on my house, I ALWAYS run the house on my inverter and will use the grid to charge my batteries with a Chargeverter when the battery gets low. I do not use bypass as my grid breaker to the inverter is always off these days
The way you have your son’s system sounds just like how I set up my system; I just need to figure out the bypass settings. I also have the chargeverter for when the grid goes down and need to charge from a generator, until we get solar up and running.
Thank you for the information and I feel better that I didn’t mess something up… lol
 
Well, I’m not a complete noob, but very close… I think I know the answer (which is no), I am wondering if the 6000xp inverter can be set up as a house UPS for when we unexpectedly loose power?
I have installed two 6000xp inverters and six Lifepower batteries that are connected to an electrical panel with a manual transfer switch; the 6000xps are connected to the grid for charging batteries/pass through.
I know I could just feed everything through the grid then flip the transfer switch when the power goes out, or let the system run in automatic mode. My wife was wondering so there wouldn’t be any power interruptions or running the batteries through cycles that aren’t needed (there are no “off hours” where power is cheaper).
Thank you in advance for any help, I’ve learned a lot from a ton of help on here.
I set up an EG4 3000 Watt All In One as an automatic power supply to a transfer switch panel at my girlfriend's house. I posted a write up about it with details, in this forum about a year ago. Pictured below. Solar panels in are not yet hooked up. I configured and built a 3000 Watt capable Battery Wagon powered by 300 amp hr x 48 volt LiFePO4s. Has been working automatically and flawlessly since plugged in w 30 amp 120vac from grid to the All in One, wth the All In One's 25 - 30 amp output plugged into the Transfer Switches AC input plug, and on to circuits switch to Gen In. That setup has about 3 days of battery power for essential 120vac house circuits when the grid is down. AND, Automatically handles when the grid goes down, and when the grid comess back on. The transfer switch circuits are left switched to Generator in mode, and are power by the grid going through the All In One, and auto powered by the battery when the grid goes down. I set grid powered battery charging amps to 30 amps vs max 60 amps, so there enough grid in AC amps left over to power the transfer switch circuits left switched to Generator In mode. Lots of options . Food for Thought. ... Capt Bill in Northern California.PXL_20231125_213127962~2.jpg
 
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Capt, can you please post a parts list for your battlewagon?
I looked at folder w records ... found that not organized enough for easy list share.

... but I did have a material cost break down near finishing and online date:
Bill Purchases : $600
other Purchases : $551
18 LiFePO4 cells : $1602 ... got a deal on the 305 Ah LifePO4s / including 2 extras that have not been needed
EG4 3000 EHV-48 : $698
__________________________
Material Costs near finish and online date: $3,451
 

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