subject:"Re\: \[RE\-wrenches\] 24v to 48v upgrade help"

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-27 Thread Bradley Bassett

Over the years I have *never *seen loads, no matter how small, taken off of
a mid point of a battery not cause serious issues with cell balancing. Even
with the use of the Vanner equalizer there were always still problems with
the battery bank. So I would never do it.  When I converted to a 48 volt
system I installed an AC to 24VDC power supply for my ElSid circ pumps for
the radiant floor. AC to DC converters like the ones from Mean-Well are
pretty efficient and inexpensive. If you have larger, or motor loads, you
would have to get a larger converter of course.

Brad

On Thu, Jan 27, 2022 at 10:57 AM Aaron Mandelkorn 
wrote:

> I am pushing for 48v.  The main concern with doing so are how to best
> continue to provide 24v power to the 23v circuits.  Now I am thinking
> rather than using a dc stepdown converter, I could potentially use 24v
> batteries in series/parallel and power the loads directly off of the
> battery.  Not sure how this would throw off the electrical balance of the
> battery.  Thanks all.  I appreciate help and direction with this.  Looks
> like there are a few options for me to consider.
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
>
> On Thu, Jan 27, 2022, 11:49 AM frenergy  wrote:
>
>> Aaron,
>>
>> Ain't nothing wrong with going to 48 volt.  It sort of
>> sounded like you wanted to stick with 24 volt but if they want to replace
>> PVs too (which it sounded like in your original post), go 48.
>>
>> Bill
>>
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.
>> Taylorsville, CA 95983
>> 530.284.7849
>> CA Lic 874049
>>
>> On 1/27/2022 9:09 AM, Aaron Mandelkorn wrote:
>>
>> All,  I will do a load analysis for the 24v loads.  I am looking to get
>> around 800ah of LI storage at 24v.  I typically use the larger 48v
>> batteries from fortress.  The space constraints will not allow for a wall
>> full of small 50ah 24v units. I am not finding much selection of 24v 200ah+
>> options.  Is sounds like most of the advice I am getting is towards not
>> upgrading to 48v.
>>
>> Aaron Mandelkorn
>> President / Founder
>> Renewable Energy Outfitters
>> www.reosolar.com
>> Off Grid Depot
>> www.offgridnow.com
>> 970-596-3744
>>
>> On Wed, Jan 26, 2022, 7:59 PM frenergy  wrote:
>>
>>> Aaron,
>>>
>>> It would be helpful to know how many amps are required to
>>> power the 24 volt loads and should we assume the batteries are toast or
>>> nearly so?  The brand of inverter?
>>>
>>> As Jeff said there are 24V L-ion choices.
>>>
>>> Bill
>>>
>>> Feather River Solar Electric
>>> Bill Battagin, Owner
>>> 4291 Nelson St.
>>> Taylorsville, CA 95983
>>> 530.284.7849
>>> CA Lic 874049
>>>
>>> On 1/26/2022 4:16 PM, Aaron Mandelkorn wrote:
>>>
>>> Wrenches,
>>>
>>> I have a customer with a very old 24v off grid pv system.  He wants to
>>> upgrade his array, inverter and battery bank.  There are no options for
>>> inverter/chargers over 4000 watts in 24v dc.  The same goes for lithium
>>> iron batteries.  Everything (of higher wattage and battery capacity) seems
>>> to be in 48v only now.  If going to 48 volts how do I acomodate the few but
>>> important 24v DC loads in the home.  Is a 48v to 24v step down converter
>>> the best option?  What do you think? Any help would be appreciated.  Thank
>>> you.
>>>
>>> Aaron Mandelkorn
>>> President / Founder
>>> Renewable Energy Outfitters
>>> www.reosolar.com
>>> Off Grid Depot
>>> www.offgridnow.com
>>> 970-596-3744
>>>
>>> ___
>>> List sponsored by Redwood Alliance
>>>
>>> Pay optional member dues here: http://re-wrenches.org
>>>
>>> List Address: RE-wrenches@lists.re-wrenches.org
>>>
>>> Change listserver email address & 
>>> settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>>
>>> There are two list archives for searching. When one doesn't work, try the 
>>> other:https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>>
>>> List rules & etiquette:http://www.re-wrenches.org/etiquette.htm
>>>
>>> Check out or update participant bios:http://www.members.re-wrenches.org
>>>
>>>
>>>
>>> 
>>>  Virus-free.
>>> www.avast.com
>>> 
>>> <#m_-7383537340987691532_m_8144765557031421817_m_-2020937635624825215_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>> ___
>>> List sponsored by Redwood Alliance
>>>
>>> Pay optional member dues here: http://re-wrenches.org
>>>
>>> List Address: RE-wrenches@lists.re-wrenches.org
>>>
>>> Change listserver email address & settings:
>>> http://lists.re-wrenches.org/

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-27 Thread Aaron Mandelkorn

I am pushing for 48v.  The main concern with doing so are how to best
continue to provide 24v power to the 23v circuits.  Now I am thinking
rather than using a dc stepdown converter, I could potentially use 24v
batteries in series/parallel and power the loads directly off of the
battery.  Not sure how this would throw off the electrical balance of the
battery.  Thanks all.  I appreciate help and direction with this.  Looks
like there are a few options for me to consider.

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744

On Thu, Jan 27, 2022, 11:49 AM frenergy  wrote:

> Aaron,
>
> Ain't nothing wrong with going to 48 volt.  It sort of sounded
> like you wanted to stick with 24 volt but if they want to replace PVs too
> (which it sounded like in your original post), go 48.
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049
>
> On 1/27/2022 9:09 AM, Aaron Mandelkorn wrote:
>
> All,  I will do a load analysis for the 24v loads.  I am looking to get
> around 800ah of LI storage at 24v.  I typically use the larger 48v
> batteries from fortress.  The space constraints will not allow for a wall
> full of small 50ah 24v units. I am not finding much selection of 24v 200ah+
> options.  Is sounds like most of the advice I am getting is towards not
> upgrading to 48v.
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
>
> On Wed, Jan 26, 2022, 7:59 PM frenergy  wrote:
>
>> Aaron,
>>
>> It would be helpful to know how many amps are required to
>> power the 24 volt loads and should we assume the batteries are toast or
>> nearly so?  The brand of inverter?
>>
>> As Jeff said there are 24V L-ion choices.
>>
>> Bill
>>
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.
>> Taylorsville, CA 95983
>> 530.284.7849
>> CA Lic 874049
>>
>> On 1/26/2022 4:16 PM, Aaron Mandelkorn wrote:
>>
>> Wrenches,
>>
>> I have a customer with a very old 24v off grid pv system.  He wants to
>> upgrade his array, inverter and battery bank.  There are no options for
>> inverter/chargers over 4000 watts in 24v dc.  The same goes for lithium
>> iron batteries.  Everything (of higher wattage and battery capacity) seems
>> to be in 48v only now.  If going to 48 volts how do I acomodate the few but
>> important 24v DC loads in the home.  Is a 48v to 24v step down converter
>> the best option?  What do you think? Any help would be appreciated.  Thank
>> you.
>>
>> Aaron Mandelkorn
>> President / Founder
>> Renewable Energy Outfitters
>> www.reosolar.com
>> Off Grid Depot
>> www.offgridnow.com
>> 970-596-3744
>>
>> ___
>> List sponsored by Redwood Alliance
>>
>> Pay optional member dues here: http://re-wrenches.org
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & 
>> settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> There are two list archives for searching. When one doesn't work, try the 
>> other:https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
>> List rules & etiquette:http://www.re-wrenches.org/etiquette.htm
>>
>> Check out or update participant bios:http://www.members.re-wrenches.org
>>
>>
>>
>> 
>>  Virus-free.
>> www.avast.com
>> 
>> <#m_8144765557031421817_m_-2020937635624825215_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>> ___
>> List sponsored by Redwood Alliance
>>
>> Pay optional member dues here: http://re-wrenches.org
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
>> There are two list archives for searching. When one doesn't work, try the
>> other:
>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>
>> List rules & etiquette:
>> http://www.re-wrenches.org/etiquette.htm
>>
>> Check out or update participant bios:
>> http://www.members.re-wrenches.org
>>
>>
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & 
> settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-27 Thread frenergy


Aaron,

            Ain't nothing wrong with going to 48 volt.  It sort of 
sounded like you wanted to stick with 24 volt but if they want to 
replace PVs too (which it sounded like in your original post), go 48.


Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049

On 1/27/2022 9:09 AM, Aaron Mandelkorn wrote:
All,  I will do a load analysis for the 24v loads.  I am looking to 
get around 800ah of LI storage at 24v. I typically use the larger 48v 
batteries from fortress.  The space constraints will not allow for a 
wall full of small 50ah 24v units. I am not finding much selection of 
24v 200ah+ options.  Is sounds like most of the advice I am getting is 
towards not upgrading to 48v.


Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com 
Off Grid Depot
www.offgridnow.com 
970-596-3744

On Wed, Jan 26, 2022, 7:59 PM frenergy  wrote:

Aaron,

            It would be helpful to know how many amps are required
to power the 24 volt loads and should we assume the batteries are
toast or nearly so?  The brand of inverter?

            As Jeff said there are 24V L-ion choices.

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049

On 1/26/2022 4:16 PM, Aaron Mandelkorn wrote:

Wrenches,

I have a customer with a very old 24v off grid pv system.  He
wants to upgrade his array, inverter and battery bank.  There are
no options for inverter/chargers over 4000 watts in 24v dc.  The
same goes for lithium iron batteries.  Everything (of higher
wattage and battery capacity) seems to be in 48v only now.  If
going to 48 volts how do I acomodate the few but important 24v DC
loads in the home.  Is a 48v to 24v step down converter the best
option?  What do you think? Any help would be appreciated.  Thank
you.

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com 
Off Grid Depot
www.offgridnow.com 
970-596-3744

___
List sponsored by Redwood Alliance

Pay optional member dues here:http://re-wrenches.org

List Address:RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the 
other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org





Virus-free. www.avast.com




<#m_-2020937635624825215_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work,
try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org


___
List sponsored by Redwood Alliance

Pay optional member dues here:http://re-wrenches.org

List Address:RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org


--

www.frenergy.net


--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenche

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-27 Thread Chris Worcester

Hi Aaron, Check out the Battle Born BBGC3 270 Ah 12 vdc LiFePO4,May make sense 
for you. Chris Worcester chris@solarwindworks.com530-448-9692Sent from my 
Samsung Galaxy s9.
 Original message From: Aaron Mandelkorn  
Date: 1/27/22  9:09 AM  (GMT-08:00) To: RE-wrenches 
 Subject: Re: [RE-wrenches] 24v to 48v 
upgrade help All,  I will do a load analysis for the 24v loads.  I am looking 
to get around 800ah of LI storage at 24v.  I typically use the larger 48v 
batteries from fortress.  The space constraints will not allow for a wall full 
of small 50ah 24v units. I am not finding much selection of 24v 200ah+ options. 
 Is sounds like most of the advice I am getting is towards not upgrading to 
48v.Aaron MandelkornPresident / FounderRenewable Energy 
Outfitterswww.reosolar.comOff Grid Depotwww.offgridnow.com970-596-3744On Wed, 
Jan 26, 2022, 7:59 PM frenergy  wrote:

Aaron,
            It would be helpful to know how many amps are
  required to power the 24 volt loads and should we assume the
  batteries are toast or nearly so?  The brand of inverter?
            As Jeff said there are 24V L-ion choices.

Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
On 1/26/2022 4:16 PM, Aaron Mandelkorn
  wrote:

  Wrenches,

I have a customer with a very old 24v off grid
  pv system.  He wants to upgrade his array, inverter and
  battery bank.  There are no options for inverter/chargers over
  4000 watts in 24v dc.  The same goes for lithium iron
  batteries.  Everything (of higher wattage and battery
  capacity) seems to be in 48v only now.  If going to 48 volts
  how do I acomodate the few but important 24v DC loads in the
  home.  Is a 48v to 24v step down converter the best option? 
  What do you think? Any help would be appreciated.  Thank you.

  Aaron
Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744

  ___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Virus-free. www.avast.com

___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-27 Thread Maverick Brown

I’ve installed a few ARK battery 48V, 100ah and they offer a 24V, 200Ah version

https://arklithium.com/

Maverick Brown
Off-Grid Solar Commander since 2006
Maverick Solar Enterprises, Inc.
 • Solar Commander Remote Power
 • SunFlow Systems Cathodic Protection 
maver...@mavericksolar.com
512-460-9825


> On Jan 27, 2022, at 11:09 AM, Aaron Mandelkorn  wrote:
> 
> 
> All,  I will do a load analysis for the 24v loads.  I am looking to get 
> around 800ah of LI storage at 24v.  I typically use the larger 48v batteries 
> from fortress.  The space constraints will not allow for a wall full of small 
> 50ah 24v units. I am not finding much selection of 24v 200ah+ options.  Is 
> sounds like most of the advice I am getting is towards not upgrading to 48v.
> 
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
> 
>> On Wed, Jan 26, 2022, 7:59 PM frenergy  wrote:
>> Aaron,
>> 
>> It would be helpful to know how many amps are required to power 
>> the 24 volt loads and should we assume the batteries are toast or nearly so? 
>>  The brand of inverter?
>> 
>> As Jeff said there are 24V L-ion choices.
>> 
>> Bill
>> 
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.
>> Taylorsville, CA 95983
>> 530.284.7849
>> CA Lic 874049
>> On 1/26/2022 4:16 PM, Aaron Mandelkorn wrote:
>>> Wrenches,
>>> 
>>> I have a customer with a very old 24v off grid pv system.  He wants to 
>>> upgrade his array, inverter and battery bank.  There are no options for 
>>> inverter/chargers over 4000 watts in 24v dc.  The same goes for lithium 
>>> iron batteries.  Everything (of higher wattage and battery capacity) seems 
>>> to be in 48v only now.  If going to 48 volts how do I acomodate the few but 
>>> important 24v DC loads in the home.  Is a 48v to 24v step down converter 
>>> the best option?  What do you think? Any help would be appreciated.  Thank 
>>> you.
>>> 
>>> Aaron Mandelkorn
>>> President / Founder
>>> Renewable Energy Outfitters
>>> www.reosolar.com
>>> Off Grid Depot
>>> www.offgridnow.com
>>> 970-596-3744
>>> 
>>> 
>>> ___
>>> List sponsored by Redwood Alliance
>>> 
>>> Pay optional member dues here: http://re-wrenches.org
>>> 
>>> List Address: RE-wrenches@lists.re-wrenches.org
>>> 
>>> Change listserver email address & settings:
>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>> 
>>> There are two list archives for searching. When one doesn't work, try the 
>>> other:
>>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>>> 
>>> List rules & etiquette:
>>> http://www.re-wrenches.org/etiquette.htm
>>> 
>>> Check out or update participant bios:
>>> http://www.members.re-wrenches.org
>>> 
>> 
>>  Virus-free. www.avast.com
>> ___
>> List sponsored by Redwood Alliance
>> 
>> Pay optional member dues here: http://re-wrenches.org
>> 
>> List Address: RE-wrenches@lists.re-wrenches.org
>> 
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>> 
>> There are two list archives for searching. When one doesn't work, try the 
>> other:
>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>> 
>> List rules & etiquette:
>> http://www.re-wrenches.org/etiquette.htm
>> 
>> Check out or update participant bios:
>> http://www.members.re-wrenches.org
>> 
> ___
> List sponsored by Redwood Alliance
> 
> Pay optional member dues here: http://re-wrenches.org
> 
> List Address: RE-wrenches@lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> There are two list archives for searching. When one doesn't work, try the 
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
> 
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> http://www.members.re-wrenches.org
> 
___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
ht

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-27 Thread Aaron Mandelkorn

All,  I will do a load analysis for the 24v loads.  I am looking to get
around 800ah of LI storage at 24v.  I typically use the larger 48v
batteries from fortress.  The space constraints will not allow for a wall
full of small 50ah 24v units. I am not finding much selection of 24v 200ah+
options.  Is sounds like most of the advice I am getting is towards not
upgrading to 48v.

Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744

On Wed, Jan 26, 2022, 7:59 PM frenergy  wrote:

> Aaron,
>
> It would be helpful to know how many amps are required to
> power the 24 volt loads and should we assume the batteries are toast or
> nearly so?  The brand of inverter?
>
> As Jeff said there are 24V L-ion choices.
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049
>
> On 1/26/2022 4:16 PM, Aaron Mandelkorn wrote:
>
> Wrenches,
>
> I have a customer with a very old 24v off grid pv system.  He wants to
> upgrade his array, inverter and battery bank.  There are no options for
> inverter/chargers over 4000 watts in 24v dc.  The same goes for lithium
> iron batteries.  Everything (of higher wattage and battery capacity) seems
> to be in 48v only now.  If going to 48 volts how do I acomodate the few but
> important 24v DC loads in the home.  Is a 48v to 24v step down converter
> the best option?  What do you think? Any help would be appreciated.  Thank
> you.
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
>
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & 
> settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the 
> other:https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:http://www.members.re-wrenches.org
>
>
>
> 
>  Virus-free.
> www.avast.com
> 
> <#m_-2020937635624825215_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
>
___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-27 Thread Dana Orzel

I have a 48 V system at my home and I have an older son Frost 24 V DC battery 
based freezer that is supported by a IOTA battery charger power supply it’s 
worked flawlessly since the day I put it together nearly 22 years ago the IOTA 
chargers come in a variety of sizes depending on your needs

Dana Orzel
C: 208.721.7003
E- d...@solarwork.com

> On Jan 26, 2022, at 7:25 PM, Mac Lewis  wrote:
> 
> 
> Hi Aaron,
> 
> You can do DC to DC  buck converters, but I would suggest cheap and efficient 
> 24V, AC power supplies. It's easy to have some spares around and they can be 
> very reliable.  
> 
> 
> 
>> On Wed, Jan 26, 2022, 5:16 PM Aaron Mandelkorn  wrote:
>> Wrenches,
>> 
>> I have a customer with a very old 24v off grid pv system.  He wants to 
>> upgrade his array, inverter and battery bank.  There are no options for 
>> inverter/chargers over 4000 watts in 24v dc.  The same goes for lithium iron 
>> batteries.  Everything (of higher wattage and battery capacity) seems to be 
>> in 48v only now.  If going to 48 volts how do I acomodate the few but 
>> important 24v DC loads in the home.  Is a 48v to 24v step down converter the 
>> best option?  What do you think? Any help would be appreciated.  Thank you.
>> 
>> Aaron Mandelkorn
>> President / Founder
>> Renewable Energy Outfitters
>> www.reosolar.com
>> Off Grid Depot
>> www.offgridnow.com
>> 970-596-3744
>> ___
>> List sponsored by Redwood Alliance
>> 
>> Pay optional member dues here: http://re-wrenches.org
>> 
>> List Address: RE-wrenches@lists.re-wrenches.org
>> 
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>> 
>> There are two list archives for searching. When one doesn't work, try the 
>> other:
>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>> 
>> List rules & etiquette:
>> http://www.re-wrenches.org/etiquette.htm
>> 
>> Check out or update participant bios:
>> http://www.members.re-wrenches.org
>> 
> ___
> List sponsored by Redwood Alliance
> 
> Pay optional member dues here: http://re-wrenches.org
> 
> List Address: RE-wrenches@lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> There are two list archives for searching. When one doesn't work, try the 
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
> 
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> http://www.members.re-wrenches.org
> 
___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-26 Thread frenergy


Aaron,

            It would be helpful to know how many amps are required to 
power the 24 volt loads and should we assume the batteries are toast or 
nearly so?  The brand of inverter?


            As Jeff said there are 24V L-ion choices.

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049

On 1/26/2022 4:16 PM, Aaron Mandelkorn wrote:

Wrenches,

I have a customer with a very old 24v off grid pv system.  He wants to 
upgrade his array, inverter and battery bank.  There are no options 
for inverter/chargers over 4000 watts in 24v dc.  The same goes for 
lithium iron batteries.  Everything (of higher wattage and battery 
capacity) seems to be in 48v only now.  If going to 48 volts how do I 
acomodate the few but important 24v DC loads in the home.  Is a 48v to 
24v step down converter the best option? What do you think? Any help 
would be appreciated.  Thank you.


Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com 
Off Grid Depot
www.offgridnow.com 
970-596-3744

___
List sponsored by Redwood Alliance

Pay optional member dues here:http://re-wrenches.org

List Address:RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org



--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-26 Thread Mac Lewis

Hi Aaron,

You can do DC to DC  buck converters, but I would suggest cheap and
efficient 24V, AC power supplies. It's easy to have some spares around and
they can be very reliable.



On Wed, Jan 26, 2022, 5:16 PM Aaron Mandelkorn  wrote:

> Wrenches,
>
> I have a customer with a very old 24v off grid pv system.  He wants to
> upgrade his array, inverter and battery bank.  There are no options for
> inverter/chargers over 4000 watts in 24v dc.  The same goes for lithium
> iron batteries.  Everything (of higher wattage and battery capacity) seems
> to be in 48v only now.  If going to 48 volts how do I acomodate the few but
> important 24v DC loads in the home.  Is a 48v to 24v step down converter
> the best option?  What do you think? Any help would be appreciated.  Thank
> you.
>
> Aaron Mandelkorn
> President / Founder
> Renewable Energy Outfitters
> www.reosolar.com
> Off Grid Depot
> www.offgridnow.com
> 970-596-3744
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
>
___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Re: [RE-wrenches] 24v to 48v upgrade help

2022-01-26 Thread Jeff Clearwater


HI Aaron,

You could stack multiple 24 Volt inverters to achieve more KW and there 
are plenty of 24 V Lithium battery options. (like Signature Solar, 
Simpliphi, Discover etc.)


If you do go for converting to 48 Volt then depending on how many amps 
of 24V loads you have (how many is it?) - you might find this helpful:


https://www.victronenergy.com/dc-dc-converters

We've had very good luck with Victron DC-DC converters - rock solid and 
controllable by Victron Blue Tooth App.  Not cheap.


Hope that helps,

Best,

Jeff C.


Aaron Mandelkorn 
January 26, 2022 at 4:16 PM
Wrenches,

I have a customer with a very old 24v off grid pv system.  He wants to 
upgrade his array, inverter and battery bank.  There are no options 
for inverter/chargers over 4000 watts in 24v dc.  The same goes for 
lithium iron batteries.  Everything (of higher wattage and battery 
capacity) seems to be in 48v only now.  If going to 48 volts how do I 
acomodate the few but important 24v DC loads in the home.  Is a 48v to 
24v step down converter the best option?  What do you think? Any help 
would be appreciated.  Thank you.


Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com 
Off Grid Depot
www.offgridnow.com 
970-596-3744


___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try 
the other:

https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org



___
List sponsored by Redwood Alliance

Pay optional member dues here: http://re-wrenches.org

List Address: RE-wrenches@lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

Re: [RE-wrenches] 24v to 48v upgrade help

10 matches

Site Navigation

Mail list logo

Footer information