dougbert
Solar Addict
wow this is my 1001st post after 4.5 years.
others post far more than I in less time
others post far more than I in less time
Solar house generator I started DIY back in 2000 - My path from Trace to Xantrex (on FLA battery) to XW Pro inverters on Tesla Model S batteries
- Thread starter dougbert
- Start date
dougbert
Solar Addict
ordered a Tesla Model S module today, #14 for 70kwh of storage, $514 dollars
growing the pack over time as the money becomes available
goal is 100kwh
growing the pack over time as the money becomes available
goal is 100kwh
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dougbert
Solar Addict
tesla battery module #14 arrived today (one on the right), put it in series with #13 and they are now charging to 48 vdc with a 60v lab power supply once that is done will add to the busbars when the pack is also at 48v (system off of course)
cost $514, better than the $1300 I paid for 1st one
70 kwh now
last pair installed Sept 2022
interesting note: #14 is not used, rather it is factory overstock
title
description
"New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second, or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections."
so maybe. we shall see
It is a later version. Has newer balance ribbon and not individual wires of the older version, so at least 2018 vintage
cost $514, better than the $1300 I paid for 1st one
70 kwh now
last pair installed Sept 2022
interesting note: #14 is not used, rather it is factory overstock
title
TESLA MODEL S X BATTERY 5.2KWH 24V 250AH SOLAR CELL MODULE PACK LITHIUM EV RV
Never installed Factory Overstockdescription
"New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second, or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections."
so maybe. we shall see
It is a later version. Has newer balance ribbon and not individual wires of the older version, so at least 2018 vintage
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dougbert
Solar Addict
Today I finished a refactoring task on the Subpanel GRID, and swapping out PVC conduit to EMT
Here is the inside of the Subpanel GRID. 2 AWG wire from up stream panel, and 1 AWG for downstream circuits (had extra 1 AWG so I used it)
replaced 100 amp QO panel that had 6 spaces for a 8 space QO 100 amp panel
this will allow for a total of 4 240v breakers, instead of 3. Thus giving 2 L14-30r's availability
common NEUTRAL without a NEUTRAL loop
one run of NEUTRAL to XW Pro
one run of NEUTRAL to Transfer Switch's NEUTRAL bar.
Transfer switch feeds just one NEUTRAL to critical loads panel and NEUTRAL is not 'switched'.
That is the reason for a COMMON NEUTRAL without loops
same for ground, no loops
I also am upgrading from ONE GRID fed L14-30r receptacle to TWO L14-30r receptacles, since I have 2 Chargeverters.
I have 2, primarily for backup protection (one is none....) and for faster grid charging when needed
The XW Pro controlled automatic recharge due to LOW BATTERY only controls ONE L14-30r receptacle
and in the middle are the 2 100 amp breakers for the transfer switch and input to the XW Pro inverter
here are the 2 boxes for the 2 grid L14-30r's
the 30amp GFCI breaker and 3/4" MC flex conduit are in flight due to arrive Thursday or Friday
Notice LOCK on transfer switch. Need it, since there is no safety panel behind the front cover
To the lower right are the 2 SSR relays controlled by the XW Pro AUX contactor, for LOW BATTERY events
the grid dual L14-30r's are similar to the Generator dual L14-30r's setup
and final overall pictures
Here is the inside of the Subpanel GRID. 2 AWG wire from up stream panel, and 1 AWG for downstream circuits (had extra 1 AWG so I used it)
replaced 100 amp QO panel that had 6 spaces for a 8 space QO 100 amp panel
this will allow for a total of 4 240v breakers, instead of 3. Thus giving 2 L14-30r's availability
common NEUTRAL without a NEUTRAL loop
one run of NEUTRAL to XW Pro
one run of NEUTRAL to Transfer Switch's NEUTRAL bar.
Transfer switch feeds just one NEUTRAL to critical loads panel and NEUTRAL is not 'switched'.
That is the reason for a COMMON NEUTRAL without loops
same for ground, no loops
I also am upgrading from ONE GRID fed L14-30r receptacle to TWO L14-30r receptacles, since I have 2 Chargeverters.
I have 2, primarily for backup protection (one is none....) and for faster grid charging when needed
The XW Pro controlled automatic recharge due to LOW BATTERY only controls ONE L14-30r receptacle
and in the middle are the 2 100 amp breakers for the transfer switch and input to the XW Pro inverter
here are the 2 boxes for the 2 grid L14-30r's
the 30amp GFCI breaker and 3/4" MC flex conduit are in flight due to arrive Thursday or Friday
Notice LOCK on transfer switch. Need it, since there is no safety panel behind the front cover
To the lower right are the 2 SSR relays controlled by the XW Pro AUX contactor, for LOW BATTERY events
the grid dual L14-30r's are similar to the Generator dual L14-30r's setup
and final overall pictures
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dougbert
Solar Addict
As mentioned in prior posts, I am doing a new design for my system to upgrade from 125 amp service to 200 amp service
I currently have a 125 amp service that I installed back in 1998. Through that service I run a 100 amp circuit to my whole house solar generator. I have added a 60 amp run for a EV charging port on the grid only panel. Even though my loads have been optimized with efficient operation, I can see future issues. So I have modified my one-line schematic of my current system (which is posted in the 1st post of this thread if you wish to compare with the new design) for a future 200 amp service install.
Should be a simple process all outside for step 1. I do not need to immediately move the 100 amp solar run, just swap the outside service panel
as also mentioned prior, the biggest issue is the $2500 power company impact fee for the upgrade, plus the permit fee.
Our hobbies do cost, do they not?
.
I currently have a 125 amp service that I installed back in 1998. Through that service I run a 100 amp circuit to my whole house solar generator. I have added a 60 amp run for a EV charging port on the grid only panel. Even though my loads have been optimized with efficient operation, I can see future issues. So I have modified my one-line schematic of my current system (which is posted in the 1st post of this thread if you wish to compare with the new design) for a future 200 amp service install.
Should be a simple process all outside for step 1. I do not need to immediately move the 100 amp solar run, just swap the outside service panel
as also mentioned prior, the biggest issue is the $2500 power company impact fee for the upgrade, plus the permit fee.
Our hobbies do cost, do they not?
.
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dougbert
Solar Addict
Flex MC conduit arrived today with end adapters, installed the GRID L14-30r receptacles and their wires up to panel..............
got LOWER receptacle wired up
BUT, no 30 amp GFCI breaker..........arriving on monday
so wires for UPPER receptacle are just hanging out awaiting
FINALLY got battery modules #13 and #14 charged to 48 volts, then waited this evening for battery voltage level to drop down 48 volts and installed the 7th row of modules, 70 kwh of battery, 1640 amp-hours
installed and got the safety plexi-glasss shield installed again
got LOWER receptacle wired up
BUT, no 30 amp GFCI breaker..........arriving on monday
so wires for UPPER receptacle are just hanging out awaiting
FINALLY got battery modules #13 and #14 charged to 48 volts, then waited this evening for battery voltage level to drop down 48 volts and installed the 7th row of modules, 70 kwh of battery, 1640 amp-hours
installed and got the safety plexi-glasss shield installed again
dougbert
Solar Addict
on a roll these past few days on finishing tasks:
re-installed the generator inter-lock and the inlet L14-30p plug into my CLP. This is my 2nd attempt
it has now become my LAST backup in case of total system failure
if I lose the GRID, my battery or my inverter, I can power the house directly from generator as if I had no solar at all
Inlet plug now right above the generator receptacles. Get my short 30 amp patch extension cord and plug it in and flip the interlock and I am good
re-installed the generator inter-lock and the inlet L14-30p plug into my CLP. This is my 2nd attempt
it has now become my LAST backup in case of total system failure
if I lose the GRID, my battery or my inverter, I can power the house directly from generator as if I had no solar at all
Inlet plug now right above the generator receptacles. Get my short 30 amp patch extension cord and plug it in and flip the interlock and I am good
