[RE-wrenches] Generator question

[Chris Daum via RE-wrenches]

 Hi folks:
 
We have a situation where the Sol-Ark 12kW Inverter isn't able to adequately
manage the loads and perform auto-gen start other than low battery level.
And despite thorough understanding of the customer's initial loads, after
he's bought the system, he's continued to add more and more loads - a severe
case of load creep. 
 
He's got a 38KW generator and we're looking for the components to make the
generator load responsive instead of just kicking on when the battery
voltage is low.  Are there any ideas on switching equipment that can do this
and work with the Sol-Ark?  We're waiting for a reply from Sol-Ark, but
thought you folks may have some ideas.  
 
The original design was for a larger solar system and inverter, but the
customer balked at the cost and said he'd reduce his loads accordingly.
Unfortunately, that has not happened!   Now we're trying to bend the laws of
physics and have his 38KW  generator make up the difference. We need to come
up with a means of accommodating the compromised design and now are faced
with additional loads -- along with a significantly reduced solar array.
Is there a way to make this (2 wire start) generator more load responsive?
 
Thanks for any and all advice!
 
 Chris Daum
 Oasis Montana Inc.
 406-777-4309 or 4321
 www.oasismontana.com   
 
 
 
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Re: [RE-wrenches] Generator question

[Darryl Thayer via RE-wrenches]

Generators are load responsive.  They can not be back feed, one approach is
to take heavy loads and have the inverter drop these loading heav load
situations.  bring these loads on line with a PLC

On Mon, Sep 25, 2023 at 11:22 AM Chris Daum via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

>  Hi folks:
>
>
>
> We have a situation where the Sol-Ark 12kW Inverter isn’t able to
> adequately manage the loads and perform auto-gen start other than low
> battery level.   And despite thorough understanding of the customer’s
> initial loads, after he’s bought the system, he’s continued to add more and
> more loads – a severe case of load creep.
>
>
>
> He’s got a 38KW generator and we’re looking for the components to make the
> generator *load responsive* instead of just kicking on when the battery
> voltage is low.  Are there any ideas on switching equipment that can do
> this and work with the Sol-Ark?  We’re waiting for a reply from Sol-Ark,
> but thought you folks may have some ideas.
>
>
>
> The original design was for a larger solar system and inverter, but the
> customer balked at the cost and said he’d reduce his loads accordingly.  
> Unfortunately,
> that has not happened!   Now we’re trying to bend the laws of physics and
> have his 38KW  generator make up the difference. We need to come up with
> a means of accommodating the compromised design and now are faced with
> additional loads -- along with a significantly reduced solar array.   Is
> there a way to make this (2 wire start) generator more load responsive?
>
>
>
> Thanks for any and all advice!
>
>
>
>  Chris Daum
>
>  Oasis Montana Inc.
>
>  406-777-4309 or 4321
>
>  www.oasismontana.com
>
>
>
>
>
>
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Re: [RE-wrenches] Generator question

[Dave Angelini Offgrid Solar via RE-wrenches]

I would trigger genset on Soc. Is that what you are doing?

Dave Angelini Offgrid Solar
"we go where powerlines don't"
   [2]https://offgridsolar1.com/ [3]  [2]
e-mail  offgridso...@sti.net
text 209 813 0060

On 2023-09-25 9:20 am, Chris Daum via RE-wrenches wrote:


Hi folks:

We have a situation where the Sol-Ark 12kW Inverter isn't able to 
adequately manage the loads and perform auto-gen start other than low 
battery level.   And despite thorough understanding of the customer's 
initial loads, after he's bought the system, he's continued to add more 
and more loads - a severe case of load creep.


He's got a 38KW generator and we're looking for the components to make 
the generator _load responsive_ instead of just kicking on when the 
battery voltage is low.  Are there any ideas on switching equipment 
that can do this and work with the Sol-Ark?  We're waiting for a reply 
from Sol-Ark, but thought you folks may have some ideas.


The original design was for a larger solar system and inverter, but the 
customer balked at the cost and said he'd reduce his loads accordingly. 
 Unfortunately, that has not happened!   Now we're trying to bend the 
laws of physics and have his 38KW  generator make up the difference. We 
need to come up with a means of accommodating the compromised design 
and now are faced with additional loads -- along with a significantly 
reduced solar array.   Is there a way to make this (2 wire start) 
generator more load responsive?


Thanks for any and all advice!

Chris Daum

Oasis Montana Inc.

406-777-4309 or 4321

www.oasismontana.com [1]

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Links:
--
[1] http://www.oasismontana.com
[2] http://members.sti.net/offgridsolar/
[3] https://offgridsolar1.com/___
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Re: [RE-wrenches] GT with BB

[Amos Post via RE-wrenches]

Hi Bill,

I’m curious where you source your bussing and/or especially the “bridge” 
pieces?  

Thanks,
Amos


   Amos Post
   Integrity Energy
  W 802.763.7023
   C 802.291.2188
ienergyVT.com 
Facebook 

> On Sep 22, 2023, at 7:45 PM, Jay via RE-wrenches 
>  wrote:
> 
> Hi Bill
> 
> Looks good to me!
> 
> I like the idea of all the copper/connections behind a plexiglass dead front. 
> Makes a lot of sense and seems safe. 
> I’m wondering what your inspectors say about it or how you convince them?  
> 
> It’s definitely got me thinking about doing a job I have in mind with buss 
> bars and plexi dead front vs 4/0 cable. 
> 
> Jay
> 
>> On Sep 21, 2023, at 9:25 PM, frenergy via RE-wrenches 
>> > > wrote:
>> 
>> Jay,
>> 
>>I sent a diagram of my proposed arrangement and bus sizes to 
>> SimpliPhi prior to installation, which they approved. The buses (copper 
>> 11000) running across the terminals are 1 1/2" X 3/16", they have a rating 
>> of 480 amps.  The "bridge" buses are 2" X 3/16" with a rating of 610 amps.  
>> The greatest possible charge-discharge on this pack will be ~327 amps which 
>> is only 16 amps per battery.  Typically the max supply is 11.5 amps, loads 
>> are less (1, 8048 Radian). The inverter cables are pairs ( +& -) of 4/0. 
>> Picture attached.
>> 
>> I'm never going to reach the 30 degree C. rise in temp with 
>> these amperages. The reasoning was the amps moving to each battery is so 
>> small that even though the batteries at the ends of the buses have more bus 
>> to move through, they are so over-sized that there would be a negligible 
>> difference in voltage, small enough for the BMS to handle.
>> 
>>I guess the answer to your question is send your proposal to the 
>> battery manufacturer, there are charts all over the internet for bus 
>> ampacities. The final touch on the way for this installation is a full sheet 
>> of plexiglass mounted on the front of the pack with multiple stand-offs. 
>> BTW, the structural is #1, 4 X 6" doug fir, its a 76 Kwhr pack to 100% DOD. 
>> We do a lot of car charging around here.
>> 
>> Bill
>> 
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.(shipping)
>> 5575 Genesee Rd. (USPS, UPS)
>> Taylorsville, CA 95983
>> 530.284.1925 Office/ 530.258.1641 Cell
>> CA Lic 874049
>> Solar powered since 1982
>> Home of the Sunny side up
>> 
>> 
>> -- 
>> This email has been checked for viruses by Avast antivirus software.
>> www.avast.com
>> 
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Re: [RE-wrenches] MAGNUM INVERTERS and breaker issues

[Andrew Perkins via RE-wrenches]

Hey Jeremy,

            I have run into this issue before and the one we found out to work 
the best is a Hubbell Part# GFRST20W.  Dont know if things have changed since 
last but give it a try. 



Good luck!


Andrew Perkins

Greenwired

Store Manager/Service Tech​

P: 707-923-2001 ext. 100

1150 #1 Evergreen Rd

Redway, CA 95560

http://www.greenwired.com





http://qr.codes/qTa1Mh












 On Sat, 23 Sep 2023 16:28:40 -0700 Jeremy Rodriguez via RE-wrenches 
 wrote ---



Wrenches 
Has anyone confirmed which AFCI, combo GF/ CAFI , or GF only circuit breaker 
brand names work with the PAE series inverter? 
The leviton combos seems to freak out! 
Regards , 
 
Jeremy Rodriguez 
Solar Installation / Design 
All Solar, Inc. 
1453 M St. 
Penrose Colorado 81240 
 
Sent by Jeremy's iPhone. Sorry for typos and shorthand. 
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[RE-wrenches] Solar World 285

[Howie Michaelson via RE-wrenches]

Hi all,
I have a client with (3) 15 panel TPMs with 6 completely damaged SolarWorld
285s (black) and another 4 that would be good to replace (so he's in need
of ideally 10, but he could get by with 6). Does anyone know of a source
for these panels (at least ones that are the same footprint and look)?
Thanks,
Howie Michaelson
Sun Catcher
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Re: [RE-wrenches] GT with BB

[frenergy via RE-wrenches]

I'm sure Storm Power Components would have done an excellent job of 
fabbing what we needed but we didn't have the time to work through their 
lengthy design/quote/build process.  So the bus bars we used were 
purchased from Mcmaster-Carr 
https://www.mcmaster.com/products/bus-bars/   they arrived in two days.


Bending and drilling the bus bar we used was not that difficult, though 
you really need to plan out what you're doing ahead of time.  An 
advantage of having two rows of batteries is the amperage in and out at 
the paired 4/0 connections immediately gets halved.


Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982
Home of the Sunny side up

On 9/25/2023 11:29 AM, Amos Post via RE-wrenches wrote:

Hi Bill,

I’m curious where you source your bussing and/or especially the 
“bridge” pieces?


Thanks,
Amos


       Amos Post
Integrity Energy
  W 802.763.7023
   C 802.291.2188
ienergyVT.com 
Facebook 

On Sep 22, 2023, at 7:45 PM, Jay via RE-wrenches 
 wrote:


Hi Bill

Looks good to me!

I like the idea of all the copper/connections behind a plexiglass 
dead front. Makes a lot of sense and seems safe.
I’m wondering what your inspectors say about it or how you convince 
them?


It’s definitely got me thinking about doing a job I have in mind with 
buss bars and plexi dead front vs 4/0 cable.


Jay

On Sep 21, 2023, at 9:25 PM, frenergy via RE-wrenches 
 wrote:


Jay,

   I sent a diagram of my proposed arrangement and bus sizes 
to SimpliPhi prior to installation, which they approved. The buses 
(copper 11000) running across the terminals are 1 1/2" X 3/16", they 
have a rating of 480 amps.  The "bridge" buses are 2" X 3/16" with a 
rating of 610 amps.  The greatest possible charge-discharge on this 
pack will be ~327 amps which is only 16 amps per battery.  Typically 
the max supply is 11.5 amps, loads are less (1, 8048 Radian). The 
inverter cables are pairs ( +& -) of 4/0. Picture attached.


I'm never going to reach the 30 degree C. rise in temp 
with these amperages. The reasoning was the amps moving to each 
battery is so small that even though the batteries at the ends of 
the buses have more bus to move through, they are so over-sized that 
there would be a negligible difference in voltage, small enough for 
the BMS to handle.


   I guess the answer to your question is send your proposal 
to the battery manufacturer, there are charts all over the internet 
for bus ampacities. The final touch on the way for this installation 
is a full sheet of plexiglass mounted on the front of the pack with 
multiple stand-offs. BTW, the structural is #1, 4 X 6" doug fir, its 
a 76 Kwhr pack to 100% DOD. We do a lot of car charging around here.


Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982
Home of the Sunny side up




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