diy solar

diy solar

Cool text this morning from customer

Looks like rusty steel. Wood 2x4s would break under that kind of weight. 180 kWh of batteries.
 
That’s pretty rad! Like the idea of hanging the batteries that way too
 
AntronX said:
Looks like rusty steel. Wood 2x4s would break under that kind of weight. 180 kWh of batteries.
Click to expand...
If it’s a steel rack, I’m curious how those bus bars are mounted to the steel rack. That’s a lot of trust for whatever insulators are there, I hope they double stacked them for added insurance.
 
740GLE said:
If it’s a steel rack, I’m curious how those bus bars are mounted to the steel rack. That’s a lot of trust for whatever insulators are there, I hope they double stacked them for added insurance.
Click to expand...
Looks like wood block?
 
damn -- I have two of those EG4 indoor batteries and thought I was doing pretty good, lol. I'd love a 3rd, but have to be somewhat reasonable on the ole' bank account.

To be fair - both of mine are running excellent I'm only like 1.5 hours west of Signature Solar where I got all my gear, slowly but surely building up my ground mount system outdoors, I think I'm at 20 battery cycles currently? only 7980 left, hahah
 

Attachments

  • 123.jpg
    123.jpg
    147.1 KB · Views: 17
Looks like those bus bars are mounted on chunks of wood being used as isolation mounts. Wood is conductive, especially when it gets wet. Another "my house burned down" in the making.
 
shopman said:
Looks like those bus bars are mounted on chunks of wood being used as isolation mounts. Wood is conductive, especially when it gets wet. Another "my house burned down" in the making.
Click to expand...
I can see it now, I’m more curious at the through bolts from bus bar to 2x4 insulator to the steel rack. Prob a plastic/delrain bushing with a collar.
 
Last edited:
Two 18kPV $10,000
12 EG4 batteries $40,000
28kW PV + racks $15,000
other parts $10,000
Labor ? $25,000
Wow, I think we are seeing what a $100k system looks like :love:
We couldn't even imagine a system like this 4-5 years ago, when guys were spot welding 18650 cells into packs to build a system - remember?
Signature Solar, Current Connected, Watts247 are doing a lot of great work getting products & systems out.
Imagine what we will see posted in 2029 in the forum...exciting times ahead.
 
From the EG4 manual:

1716291794234.png

The rear bracket does not appear to be design to support the entire weight of the battery (282 lbs). This install appears to use that bracket and there doesn't seem to be any support under the battery. Even the units near the floor appear to have their feet removed and seem to be supported by the rear bracket.

This is 3400 lbs supported in a questionable way.

This also doesn't meet the 7 inch unit to unit spacing specified in the manual.

Mike C.
 
OffGridForGood said:
Two 18kPV $10,000
12 EG4 batteries $40,000
28kW PV + racks $15,000
other parts $10,000
Labor ? $25,000
Wow, I think we are seeing what a $100k system looks like :love:
We couldn't even imagine a system like this 4-5 years ago, when guys were spot welding 18650 cells into packs to build a system - remember?
Signature Solar, Current Connected, Watts247 are doing a lot of great work getting products & systems out.
Imagine what we will see posted in 2029 in the forum...exciting times ahead.
Click to expand...
It's certainly impressive but I'm asking myself what they are doing to need 36kW of instantaneous power. You'd need to be totally off grid with 2 EV's and all electric house to come close that sort of draw.

Are they trying to run 20kW of heat strips during an ice storm power outage? I'm in the office now but used to be the electrician in the field. Our utility meters scroll through different screens, one shows the all time peak KW and I never saw one over 27kW. That was a 6000ft2 all electric house, hot tub, 2 x water heaters and 2 x heat pumps with strips, a swimming pool and an EV. The owner was paying no attention to when or how they used power and never even came close to justifying thier 400 amp service, let alone a 200 amp. A 200 amp service pencils out to 48kW.

Don't hear me judging anybody, just curious how much attention was paid to choosing this size of a system.
 
OzSolar said:
It's certainly impressive but I'm asking myself what they are doing to need 36kW of instantaneous power. You'd need to be totally off grid with 2 EV's and all electric house to come close that sort of draw.

Are they trying to run 20kW of heat strips during an ice storm power outage? I'm in the office now but used to be the electrician in the field. Our utility meters scroll through different screens, one shows the all time peak KW and I never saw one over 27kW. That was a 6000ft2 all electric house, hot tub, 2 x water heaters and 2 x heat pumps with strips, a swimming pool and an EV. The owner was paying no attention to when or how they used power and never even came close to justifying thier 400 amp service, let alone a 200 amp. A 200 amp service pencils out to 48kW.

Don't hear me judging anybody, just curious how much attention was paid to choosing this size of a system.
Click to expand...
I wondered the same thing, but as you say we don't know what their loads are, or what solar potential they have.
Comparing to my own system - that runs my home and business next door - this sizing seems odd.

I would love to have 168kWh ESS, but honestly my current 99.6 allows plenty of storage for my needs, and I only run 13kW of Solar and I'm not in sunny Arizona or SoCal. I wonder if this system will hit 100% charge by 10:00AM most days of the year.
 
OzSolar said:
It's certainly impressive but I'm asking myself what they are doing to need 36kW of instantaneous power. You'd need to be totally off grid with 2 EV's and all electric house to come close that sort of draw.

Are they trying to run 20kW of heat strips during an ice storm power outage? I'm in the office now but used to be the electrician in the field. Our utility meters scroll through different screens, one shows the all time peak KW and I never saw one over 27kW. That was a 6000ft2 all electric house, hot tub, 2 x water heaters and 2 x heat pumps with strips, a swimming pool and an EV. The owner was paying no attention to when or how they used power and never even came close to justifying thier 400 amp service, let alone a 200 amp. A 200 amp service pencils out to 48kW.

Don't hear me judging anybody, just curious how much attention was paid to choosing this size of a system.
Click to expand...
From the metal building backstop may be powering a workshop or other thirsty machines versus a house.
 
You must log in or register to reply here.

Similar threads

A
Utility dropping power concerns - How are you directing those who don't have DIY skills for energy security?
2
Replies
44
Views
860
OffGridForGood
OffGridForGood
R
24v Bank Dead - upgrade to 24v LiFe or scrap system for 48v - WANTED recommendations
Replies
9
Views
444
sunshine_eggo
sunshine_eggo
R
24v Bank Dead - upgrade to 24v LiFe or scrap system for 48v - WANTED recommendations
2
Replies
35
Views
1K
Steve_S
Steve_S
Crowz
Cool pics from spammer this morning :)
Replies
20
Views
1K
racer5039
R
k490
Warning buying a cheap mini split off Amazon
2
Replies
45
Views
1K
k490
k490

diy solar

diy solar
Back
Top