[RE-wrenches] Golf Cart as temporary off-grid PV

[Ray Walters]

Most carts run at 48vdc these days.  They either have eight 6 volt 
batteries, or six 8 v batteries.  I would think that would make a good 
match for power backup with a 4kw range inverter like the Magnum MS4448.

Ray

On 3/15/2022 12:18 PM, Nick A Lucchese wrote:
> Not sure what the golf cart fleets are these days but decades ago as a youngster I worked at a course where all the EZ-GO’s were 36v nominal with all Trojan T-105’s. Also uncertain if still available or not but years ago the first Cybo inverters I purchased were also intended for 36v nominal battery banks. Perhaps George and the team still offer that model. It’s obviously a different type of architecture and I didn’t have any luck with the 4 amp 36v charger on the inverter’s AC output that was promoted but surely you could figure your means of charging with perhaps a Flexmax or similar. I had some issues with the hot water heater model but the off grid model consistently performed it’s inverting function assuming there was a fan or some sort of resistive or inductive load to keep the inverter awake. The only other 36v inverter I can think of was the Heart Transverter which was a big loss for a few of us.
>
> https://www.cyboenergy.com/products/offgridoverview.html
>
> Best of luck Jason, Nick
>
>
>
>
>> On Mar 14, 2022, at 3:48 PM, Jason Szumlanski <jason at floridasolardesigngroup.com> wrote:
>>
>> Every now and then I get questions here in the land of hurricanes and golf courses about using golf carts as the battery bank for a permanently mounted grid-tie home PV system in a backup scenario. Does anyone have any ideas on a good way to do something like this? The battery would need to be able to be unplugged of course (not under load I hope!) It's mostly DIY'ers trying to cobble together a solution for a small critical load panel for their home.
>>
>> The idea is becoming more popular as people hear about using EVs for home backup. I'd like to get ahead of it and maybe even offer a solution that's safe, legal, and functional.
>>
>> Jason Szumlanski
>> Florida Solar Design Group
>> _______________________________________________
>> List sponsored by Redwood Alliance
>>
>> Pay optional member dues here: http://re-wrenches.org
>>
>> List Address: RE-wrenches at 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 at 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
>