[RE-wrenches] Home grid stacked battery heating

[Howie Michaelson]

Daryl,
Being in Vermont and dealing with lots of off-grid, occasional use systems,
I'm definitely interested in others' experience with cold weather
installations.
Howie Michaelson
Sun Catcher



On Sun, Nov 5, 2023 at 3:03 PM Darryl Thayer via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Great site, Allan, but many facts still need to be included.  Was there a
> discharge or charge going on? How much power was being drawn by the
> heaters?  If this is for a standalone system, energy consumption is very
> important. What is the lower temperature cell discharge limit of Blue
> Planet?   What concern was taken for the summer and overheating?   What are
> the blue planet-specific heat and weight of the batteries?  More questions,
> but I doubt if anyone else is interested.     Thank you.
>
> On Thu, Oct 26, 2023 at 11:49 AM Sindelar Solar via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> You might be able to get some ideas from this. It's worked well for me on
>> one job.
>> Allan
>>
>> On 10/25/2023 2:24 PM, Dana Orzel via RE-wrenches wrote:
>>
>> I know we have had this run thru before & wanted to see if any new
>> options for heating LI batteries.
>>
>>
>>
>> I have an 8 pack of Homegrid LI batteries that is off grid with Radian
>> 8048a. Originally, they were not going to be there for the winter, now it
>> is a possibility they may visit. Plenty of solar 6KW+, hopefully generator
>> back up waiting on delivery currently.
>>
>> Currently located in main room high ceilings/log cabin.
>>
>> Looking at creating an insulated closet & using terrarium heaters
>> controlled if over 51volt heater on AC from inverter. Or just boxing in
>> with 3-4” of blue board Styrofoam….
>>
>>
>>
>> Has anyone else done something similar?
>>
>> Has anyone done this & it did not work?
>>
>>
>>
>> Thought & suggestions…..
>>
>>
>>
>>
>>
>> _________________________________________________________
>>
>> Dana Orzel                GREAT SOLAR WORKS!
>>
>> C – 208.721.7003      E – dana at solarwork.com
>>
>> W - www. greatsolarworks.com     www.solarwork.com
>>
>> *“Responsible Technologies for Responsible People since 1988!”*
>>
>>
>>
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>> --
>>
>> *Allan Sindelar*
>> allan at sindelarsolar.com
>> RETIRED
>>
>>
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