[RE-wrenches] Protection on the back side of modules

2022-03-15 Thread Dana Orzel
Quick Q: What are you all doing for a ground mounted array protection for
array wiring on the back side of modules, Q-cell G6+ 350 watt.

The inspector will except: a fence even just a 2 rail (IMHO pretty
worthless) fence or panels? (I do not have source for this) or mesh wire.

 

Any other reasonable ideas?

 

 

 

Dana Orzel  Great Solar Works, Inc. 

C - 208.721.7003   d...@solarwork.com

Idaho Contractor - # 028765 Idaho PV # 028374

NABCEP # 051112-136   www.greatsolarworks.com
 

"Responsible Technologies for Responsible People since 1988"  

P Please consider the environment before printing this email.

 

 

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Re: [RE-wrenches] Protection on the back side of modules

2022-03-15 Thread Sam Haraldson
Dana,

There was some good discussion on this topic recently.  Search the archives
for: " [RE-wrenches] protecting wire below 8' w/awning array"

Cheers,
Sam Haraldson 
Installation & Service Manager


| o. (406) 551-6135








>
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Re: [RE-wrenches] 24/7 Water pumping

2022-03-15 Thread William Miller
Windy:

Thanks for the info. I have been in contact with Sun Pumps. They can sell
me a pump that will work off of a high voltage battery bank (greater than
90 VDC and likely much higher). However they cannot provide or recommend a
charge controller to output PV charge at the higher voltage. Do you or any
wrench know of a high voltage charge controller on the market?

Thanks in advance.

William

On Thu, Mar 10, 2022 at 8:29 AM Windy Dankoff  wrote:

> Dear William,
>
> SunPumps has a new helical rotor submersible series (positive
> displacement) that is typically much more efficient for high lift compared
> to a normal multi-stage centrifugal sub (you'll have to compare the specs).
>
> https://www.sunpumps.com/Products/HR%2010-525%20AC%20DC
>
> I have no inside-knowledge of this item, but it's based on good technology
> similar to Lorentz and Grundfos and SunPumps is on the same level as a
> world leader.
>
> With any DC pump, you need to be sure it's compatible with battery power
> if you need 24/7.
>
> I hope you'll let us know how it goes.
>
> Windy
>
>
> *From: *William Miller 
> *Subject: **[RE-wrenches] 24/7 wATER pUMPING*
> *Date: *March 8, 2022 at 7:53:37 AM MST
> *To: *RE-wrenches 
> *Reply-To: *
>
>
> Friends:
>
>
> I have a client that wishes to pump water at about 10 GPM from spring
> through autumn equinoxes.   Lift is 300 feet.  (This is the project that
> will not siphon beyond 33 feet.)
>
>
> I can design a solar/battery/inverter system for this purpose but I am
> wondering if there is a direct DC option.  I am going to look at the
> Grundfos SQ-Flex tables to see if this is an option.
>
>
> Does anyone out there have any advice on best approach to this project?
>
>
> Thanks in advance,
>
>
> William Miller
>
>
> Miller Solar
> 17395 Oak Road, Atascadero, CA 93422
> 805-438-5600
> www.millersolar.com
> CA Lic. 773985
>
>
>
>
>
>
>
> *From: *Jerry Shafer 
> *Subject: **Re: [RE-wrenches] 24/7 wATER pUMPING*
> *Date: *March 8, 2022 at 8:58:16 AM MST
> *To: *William Miller , RE-wrenches <
> re-wrenches@lists.re-wrenches.org>
>
>
> William
> Here is the deal it will be simplest to go AC for the pump because of the
> requirement of high voltage DC yes there are small er output DC pumps but
> that is not what you need, first find a AC pump that can do the required 10
> GPM at 300 feet of head then design a inverter to fit that bill PV to
> recharge that usage and then some. look at the first and last day of the
> desired water demand and go the shorted day as a production base line. When
> looking at pumps grundfus is very efficient in DC and wild AC but at a cost
> so look at options output vs input. I have done this with Grundus and DC
> direct to a 50K storage tank at the very top of the property so it can be
> done with DC so AC just requires additional nighttime.
> Here might be an option large enough storage tank to fill every night and
> a pump big enough to drain it every day, this can be done DC direct,
> cheaper and less moving parts and the pump can run on a genny if you have
> bad weather for days, This is how the ones I have done work.
> Jerry
>
>
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> --

William Miller
Miller Solar.com
895-438-5600
www.millersolar.com
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Re: [RE-wrenches] Protection on the back side of modules

2022-03-15 Thread jay
I”ve used this product.

You can make it yourself too.

http://solarscrim.com

jay

> On Mar 15, 2022, at 10:42 AM, Dana Orzel  wrote:
> 
> Quick Q: What are you all doing for a ground mounted array protection for 
> array wiring on the back side of modules, Q-cell G6+ 350 watt.
> The inspector will except: a fence even just a 2 rail (IMHO pretty worthless) 
> fence or panels? (I do not have source for this) or mesh wire.
>  
> Any other reasonable ideas?
>  
>  
>  
> Dana Orzel  Great Solar Works, Inc. 
> C - 208.721.7003   d...@solarwork.com 
> 
> Idaho Contractor - # 028765 Idaho PV # 028374
> NABCEP # 051112-136   www.greatsolarworks.com 
> 
> "Responsible Technologies for Responsible People since 1988"  
> P Please consider the environment before printing this email.
>  
>  
> ___
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Re: [RE-wrenches] 24/7 Water pumping

2022-03-15 Thread larrycrutcher
Hi William,

A charge controller may not be needed if you are running the pump direct. By 
designing the PV array so that the Isc is higher than the maximum load demands, 
and the Voc is less than the maximum operating voltage, you can run PV direct 
without a controller. Use a high voltage relay (like Gigavac) for switching 
from the float or pressure switch. 

Charging a high voltage chemical battery direct from PV power is conceivable 
but much harder. If you can’t find a controller, I would opt to use the pumped 
water as the battery…pump it high, use gravity. 

Larry Crutcher
Starlight Solar Power Systems



On Mar 15, 2022, at 9:10 AM, William Miller  wrote:

Windy:

Thanks for the info. I have been in contact with Sun Pumps. They can sell me a 
pump that will work off of a high voltage battery bank (greater than 90 VDC and 
likely much higher). However they cannot provide or recommend a charge 
controller to output PV charge at the higher voltage. Do you or any wrench know 
of a high voltage charge controller on the market?

Thanks in advance.

William 

On Thu, Mar 10, 2022 at 8:29 AM Windy Dankoff mailto:windydank...@mac.com>> wrote:
Dear William,

SunPumps has a new helical rotor submersible series (positive displacement) 
that is typically much more efficient for high lift compared to a normal 
multi-stage centrifugal sub (you'll have to compare the specs).

https://www.sunpumps.com/Products/HR%2010-525%20AC%20DC 


I have no inside-knowledge of this item, but it's based on good technology 
similar to Lorentz and Grundfos and SunPumps is on the same level as a world 
leader.

With any DC pump, you need to be sure it's compatible with battery power if you 
need 24/7.

I hope you'll let us know how it goes.

Windy

> 
> From: William Miller  >
> Subject: [RE-wrenches] 24/7 wATER pUMPING
> Date: March 8, 2022 at 7:53:37 AM MST
> To: RE-wrenches  >
> Reply-To: mailto:will...@millersolar.com>>
> 
> 
> Friends:
>  
> I have a client that wishes to pump water at about 10 GPM from spring through 
> autumn equinoxes.   Lift is 300 feet.  (This is the project that will not 
> siphon beyond 33 feet.)
>  
> I can design a solar/battery/inverter system for this purpose but I am 
> wondering if there is a direct DC option.  I am going to look at the Grundfos 
> SQ-Flex tables to see if this is an option.
>  
> Does anyone out there have any advice on best approach to this project?
>  
> Thanks in advance,
>  
> William Miller
>  
> Miller Solar
> 17395 Oak Road, Atascadero, CA 93422
> 805-438-5600
> www.millersolar.com 
> CA Lic. 773985
>  
>  
> 
> 
> 
> From: Jerry Shafer  >
> Subject: Re: [RE-wrenches] 24/7 wATER pUMPING
> Date: March 8, 2022 at 8:58:16 AM MST
> To: William Miller  >, RE-wrenches 
> mailto:re-wrenches@lists.re-wrenches.org>>
> 
> 
> William
> Here is the deal it will be simplest to go AC for the pump because of the 
> requirement of high voltage DC yes there are small er output DC pumps but 
> that is not what you need, first find a AC pump that can do the required 10 
> GPM at 300 feet of head then design a inverter to fit that bill PV to 
> recharge that usage and then some. look at the first and last day of the 
> desired water demand and go the shorted day as a production base line. When 
> looking at pumps grundfus is very efficient in DC and wild AC but at a cost 
> so look at options output vs input. I have done this with Grundus and DC 
> direct to a 50K storage tank at the very top of the property so it can be 
> done with DC so AC just requires additional nighttime. 
> Here might be an option large enough storage tank to fill every night and a 
> pump big enough to drain it every day, this can be done DC direct, cheaper 
> and less moving parts and the pump can run on a genny if you have bad weather 
> for days, This is how the ones I have done work.
> Jerry

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[RE-wrenches] APsystems micro inverters

2022-03-15 Thread jay
HI All,

Any thoughts about APsystems vs Enphase micro inverters.


They have a new DS3 line that looks quite good.

Thanks in advance

Jay


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

2022-03-15 Thread No Name
You'll have to relate those stories about Hart's Tansverter to us Nick.  .
He's been so vocal and self-promotional lately I actually toyed with the
idea of purchasing one to put it to the test 😆. .

On Tue, Mar 15, 2022, 11:18 AM 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 <
> ja...@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
> > ___
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Re: [RE-wrenches] 24/7 Water pumping

2022-03-15 Thread Ray Walters
The Midnite Classic can go higher to 72v stock, and they have models 
that can work with 120 vdc batteries.


Ray

On 3/15/2022 12:19 PM, larrycrutcher wrote:

Hi William,

A charge controller may not be needed if you are running the pump 
direct. By designing the PV array so that the Isc is higher than the 
maximum load demands, and the Voc is less than the maximum operating 
voltage, you can run PV direct without a controller. Use a high 
voltage relay (like Gigavac) for switching from the float or pressure 
switch.


Charging a high voltage chemical battery direct from PV power is 
conceivable but much harder. If you can’t find a controller, I would 
opt to use the pumped water as the battery…pump it high, use gravity.


Larry Crutcher
Starlight Solar Power Systems



On Mar 15, 2022, at 9:10 AM, William Miller  
wrote:


Windy:

Thanks for the info. I have been in contact with Sun Pumps. They can 
sell me a pump that will work off of a high voltage battery bank 
(greater than 90 VDC and likely much higher). However they cannot 
provide or recommend a charge controller to output PV charge at the 
higher voltage. Do you or any wrench know of a high voltage charge 
controller on the market?


Thanks in advance.

William

On Thu, Mar 10, 2022 at 8:29 AM Windy Dankoff  
wrote:


Dear William,

SunPumps has a new helical rotor submersible series (positive
displacement) that is typically much more efficient for high lift
compared to a normal multi-stage centrifugal sub (you'll have to
compare the specs).

https://www.sunpumps.com/Products/HR%2010-525%20AC%20DC

I have no inside-knowledge of this item, but it's based on good
technology similar to Lorentz and Grundfos and SunPumps is on the
same level as a world leader.

With any DC pump, you need to be sure it's compatible with battery
power if you need 24/7.

I hope you'll let us know how it goes.

Windy



*From:*William Miller 
*Subject:**[RE-wrenches] 24/7 wATER pUMPING*
*Date:*March 8, 2022 at 7:53:37 AM MST
*To:*RE-wrenches 
*Reply-To:*


Friends:

I have a client that wishes to pump water at about 10 GPM from
spring through autumn equinoxes.   Lift is 300 feet.  (This is
the project that will not siphon beyond 33 feet.)

I can design a solar/battery/inverter system for this purpose but
I am wondering if there is a direct DC option.  I am going to
look at the Grundfos SQ-Flex tables to see if this is an option.

Does anyone out there have any advice on best approach to this
project?

Thanks in advance,

William Miller

Miller Solar
17395 Oak Road, Atascadero, CA 93422
805-438-5600
www.millersolar.com 
CA Lic. 773985




*From:*Jerry Shafer 
*Subject:**Re: [RE-wrenches] 24/7 wATER pUMPING*
*Date:*March 8, 2022 at 8:58:16 AM MST
*To:*William Miller , RE-wrenches



William
Here is the deal it will be simplest to go AC for the pump
because of the requirement of high voltage DC yes there are small
er output DC pumps but that is not what you need, first find a AC
pump that can do the required 10 GPM at 300 feet of head then
design a inverter to fit that bill PV to recharge that usage and
then some. look at the first and last day of the desired water
demand and go the shorted day as a production base line. When
looking at pumps grundfus is very efficient in DC and wild AC but
at a cost so look at options output vs input. I have done this
with Grundus and DC direct to a 50K storage tank at the very top
of the property so it can be done with DC so AC just requires
additional nighttime.
Here might be an option large enough storage tank to fill every
night and a pump big enough to drain it every day, this can be
done DC direct, cheaper and less moving parts and the pump can
run on a genny if you have bad weather for days, This is how the
ones I have done work.
Jerry


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--

William Miller
Miller Solar.com 
895-438-5600
www.millersolar.com 
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Re: [RE-wrenches] Golf Cart as temporary off-grid PV

2022-03-15 Thread 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 
 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
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Re: [RE-wrenches] Golf Cart as temporary off-grid PV

2022-03-15 Thread Jason Szumlanski
That's what I was thinking- a MS4448 would be a nice option with a good
surge rating.

I'm trying to make this work with little to minimal equipment onboard the
golf cart. Ideally, the battery would connect to a
stationary inverter/charger at the house via a cable/connector. The PV
would be permanently mounted also and would be grid-tied for times the
battery is not connected. I am thinking this needs to be an AC coupled
scenario with a grid-tie inverter that is AC coupled to the battery
inverter. I'm hung up on how to safely connect the battery to the inverter
(and more importantly, disconnect the battery from the inverter).


Jason




On Tue, Mar 15, 2022 at 6:29 PM Ray Walters  wrote:

> 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 <
> ja...@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
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> >> Pay optional member dues here: http://re-wrenches.org
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[RE-wrenches] Water Pumping 24/7

2022-03-15 Thread Hilton Dier
Here’s a lateral take on this. A 500 gallon poly water tank is far cheaper than 
the batteries needed to fill it. 

Years ago I rigged up a seasonal pump system for a man who had two ponds on his 
property. The lower one was well fed by a spring but the upper one wasn’t. I 
used a 200 watt DC piston pump and a couple of modules with a linear current 
booster. A couple of breakers but no batteries. It just chugged away quietly 
all (moderately sunny) day, filling the upper pond.

Using a positive displacement pump is key for minimizing power requirements. At 
300 feet that’s about 125 psi, which is not out of line for a piston pump. Fill 
a big poly tank and pressurize it with a small DC diaphragm pump if necessary. 

Simple, efficient, cheap. 

Hilton Dier III
Renewable Energy Design
Missisquoi River Hydro LLC
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[RE-wrenches] Water pumping 24/7 addendum

2022-03-15 Thread Hilton Dier
Forgot to add: I’m talking about the belt drive piston pumps out there so you 
can install a low voltage DC motor if you want.

Hilton Dier III
Renewable Energy Design
Missisquoi River Hydro LLC
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Re: [RE-wrenches] Water Pumping 24/7

2022-03-15 Thread William Miller
Hilton:

A valid point.  However in this region wells often do not recharge as well
as we might like.  In these cases, to meet gallons per day you have to pump
long and slow--more hours per day than the sun will be up.  That means of
course generator or battery storage.

The economics have shifted from when I started installing direct-DC water
pumping.  The money that is being spent today to provide commercial ag water
is beyond what I would have comprehended back then.  This means new
technology--and questions need to be asked, including considering battery
storage.

Thanks for your reply.

William

Miller Solar
17395 Oak Road, Atascadero, CA 93422
805-438-5600
www.millersolar.com
CA Lic. 773985



-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Hilton Dier
Sent: Tuesday, March 15, 2022 6:56 PM
To: RE-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches] Water Pumping 24/7

Here’s a lateral take on this. A 500 gallon poly water tank is far cheaper
than the batteries needed to fill it.

Years ago I rigged up a seasonal pump system for a man who had two ponds on
his property. The lower one was well fed by a spring but the upper one wasn’t.
I used a 200 watt DC piston pump and a couple of modules with a linear
current booster. A couple of breakers but no batteries. It just chugged away
quietly all (moderately sunny) day, filling the upper pond.

Using a positive displacement pump is key for minimizing power requirements.
At 300 feet that’s about 125 psi, which is not out of line for a piston
pump. Fill a big poly tank and pressurize it with a small DC diaphragm pump
if necessary.

Simple, efficient, cheap.

Hilton Dier III
Renewable Energy Design
Missisquoi River Hydro LLC
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Re: [RE-wrenches] Golf Cart as temporary off-grid PV

2022-03-15 Thread Ray
For disconnects, I'd just use Andersen quick connects.  That's what they 
use on forklifts and other industrial battery operated machines.  Also, 
the Magnum would act as the vehicle charger, and would be a much better 
charger than the stock golf cart models.


Ray Walters
Remote Solar
303 505-8760

On 3/15/22 4:46 PM, Jason Szumlanski wrote:
That's what I was thinking- a MS4448 would be a nice option with a 
good surge rating.


I'm trying to make this work with little to minimal equipment onboard 
the golf cart. Ideally, the battery would connect to a 
stationary inverter/charger at the house via a cable/connector. The PV 
would be permanently mounted also and would be grid-tied for times the 
battery is not connected. I am thinking this needs to be an AC coupled 
scenario with a grid-tie inverter that is AC coupled to the battery 
inverter. I'm hung up on how to safely connect the battery to the 
inverter (and more importantly, disconnect the battery from the inverter).



Jason

*

*


On Tue, Mar 15, 2022 at 6:29 PM Ray Walters  wrote:

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
 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@lists.re-wrenches.org
>>
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>>
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
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