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Old 02-04-2019, 08:08 PM   #1 (permalink)
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SUVcruiser - '07 Ssangyong Kyron 2.0 XDI
90 day: 42.55 mpg (US)

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Powerbasement offgrid solar installation

Hello everyone.

I aim long saving 18650 li-ion batteries and the time has finally come to start building my own version of the Tesla powerwall.

I have this basement and spacewise i will be building a powerrack instead of a powerwall. This rack will contain about 80kWh in a space of 0,8m x 1m x 1m90. So verry compact.

In a perfect world. I have enough space to fit 5 of those racks in my basement. But lets build the first one before dreaming of the next one.

The plan:

24 solar panels of 300wp.
So far 24kWh of lithium
And evaluating what kind of electronics i will use.

To follow me:

Here is my first video of the build.
I hope you enjoy it!

If you have questions or suggestions. Please feel free to shoot those to me.

Thanks



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Drive smart, save fuel, save money, spare the enviroment

But keep having fun!
I can drift



Previous car. SUV. From 2011+ 10l/100km to 2017 5,516l/100km.
2017 without holiday: 5,397l/100km
EPA Rated average: 8,1l/100km

Current ride: plug in 285hp hybrid
EPA Rated average: 2,8l/100km
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Old 02-04-2019, 08:52 PM   #2 (permalink)
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There is no way I would put a bunch of those batteries in my basement. Maybe in a shed.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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Old 02-04-2019, 10:48 PM   #3 (permalink)
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Join Date: Jan 2014
Location: Antwerp (Belgium)
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SUVcruiser - '07 Ssangyong Kyron 2.0 XDI
90 day: 42.55 mpg (US)

SUVcruiser year 2017 - '07 Ssangyong Kyron 2.0XDI
90 day: 42.55 mpg (US)

Hybridcruiser 2018 - '13 Volvo V60 plug in hybrid
Plug-in Hybrids
90 day: 61.11 mpg (US)
Thanks: 10
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Where i live in winter it freezes. So the room where the batteries are in can not be some shed. Or i need to super isolate it and put a heater in the shed... You cant charge lithium when freezing.
__________________
Drive smart, save fuel, save money, spare the enviroment

But keep having fun!
I can drift



Previous car. SUV. From 2011+ 10l/100km to 2017 5,516l/100km.
2017 without holiday: 5,397l/100km
EPA Rated average: 8,1l/100km

Current ride: plug in 285hp hybrid
EPA Rated average: 2,8l/100km
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Old 02-05-2019, 12:11 PM   #4 (permalink)
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What is the source of your cells? Were they bought new or harvested from old electronics? If harvested, have you done an internal resistance check on the cells? That seems to be where most of the problems arise from using older mismatched cells. Good luck with your build.
JJ
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Old 02-05-2019, 05:39 PM   #5 (permalink)
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Join Date: Jul 2011
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Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
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90 day: 124.63 mpg (US)
Thanks: 162
Thanked 2,037 Times in 1,562 Posts
I would do some kind of insulated, heated battery box before I brought them inside.

I'm well aware of what happens to lithium ion batteries when they get cold.
Stated using LiFePO4 back in 2011 and started driving a nissan leaf last year.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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Old 02-07-2019, 11:50 PM   #6 (permalink)
Master EcoModder
 
Join Date: Jan 2014
Location: Antwerp (Belgium)
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SUVcruiser - '07 Ssangyong Kyron 2.0 XDI
90 day: 42.55 mpg (US)

SUVcruiser year 2017 - '07 Ssangyong Kyron 2.0XDI
90 day: 42.55 mpg (US)

Hybridcruiser 2018 - '13 Volvo V60 plug in hybrid
Plug-in Hybrids
90 day: 61.11 mpg (US)
Thanks: 10
Thanked 60 Times in 50 Posts
Quote:
Originally Posted by jjackstone View Post
What is the source of your cells? Were they bought new or harvested from old electronics? If harvested, have you done an internal resistance check on the cells? That seems to be where most of the problems arise from using older mismatched cells. Good luck with your build.
JJ
I only do a capacity test. If they don't have 75% from new. They will not be used in the powerrack.

My source are used laptop and e-bike batteries.
__________________
Drive smart, save fuel, save money, spare the enviroment

But keep having fun!
I can drift



Previous car. SUV. From 2011+ 10l/100km to 2017 5,516l/100km.
2017 without holiday: 5,397l/100km
EPA Rated average: 8,1l/100km

Current ride: plug in 285hp hybrid
EPA Rated average: 2,8l/100km
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Old 02-08-2019, 01:37 AM   #7 (permalink)
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Ok. I'm guessing then that you have watched a number of the Youtube videos from the likes of JehuGarcia, The Australian Powerwall guy(can't remember his name right now), and others. You really need to get a charger that will test the internal resistance even if the battery capacities are pretty well matched. When those guys have had their fires, that is often where the fault was found. Higher resistance = more heat = fire eventuallyt.
JJ
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Old 02-09-2019, 05:07 PM   #8 (permalink)
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On aliexpress there are some ebike modules wiyhout any cells in them.

If i were in your shoes i would be trying to build big modules out of those so you can carry some to your car when you want to boost the electric range.

Kind of like the scifi power modules (or the spore drive canister nonsense on the new StarTrek)
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Old 02-10-2019, 04:31 AM   #9 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 6,996

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 124.63 mpg (US)
Thanks: 162
Thanked 2,037 Times in 1,562 Posts
I would just use something like battery modules from a nissan leaf.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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Old 02-10-2019, 04:32 AM   #10 (permalink)
Master EcoModder
 
Join Date: Jan 2014
Location: Antwerp (Belgium)
Posts: 263

SUVcruiser - '07 Ssangyong Kyron 2.0 XDI
90 day: 42.55 mpg (US)

SUVcruiser year 2017 - '07 Ssangyong Kyron 2.0XDI
90 day: 42.55 mpg (US)

Hybridcruiser 2018 - '13 Volvo V60 plug in hybrid
Plug-in Hybrids
90 day: 61.11 mpg (US)
Thanks: 10
Thanked 60 Times in 50 Posts
Those are unfindable in Belgium...

__________________
Drive smart, save fuel, save money, spare the enviroment

But keep having fun!
I can drift



Previous car. SUV. From 2011+ 10l/100km to 2017 5,516l/100km.
2017 without holiday: 5,397l/100km
EPA Rated average: 8,1l/100km

Current ride: plug in 285hp hybrid
EPA Rated average: 2,8l/100km
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