Re: [RE-wrenches] Sol-Ark grid tie question

[No Name via RE-wrenches]

It absolutely does. It works well in that scenario as well. No battery? No
problem until the client decides to purchase and install some storage!

Pretty versatile compared to a truly "Battery Based Inverter" like
Schneider/Outback. .

On Fri, Apr 1, 2022, 9:29 AM Jason Szumlanski via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> If you set up the inverter in a straight grid tie mode, does it still pass
> power through to the load terminals when on grid?
>
> I ask this, because a client wants us to connect it with a backup load
> panel but no battery right now. He wants to add the battery later.
>
> My other thought is to install a bypass switch to pass grid power directly
> to the subpanel, which would act as a service bypass for the future anyway.
>
> Jason Szumlanski
> Florida Solar Design Group
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Re: [RE-wrenches] Ideas and racking systems for "stowing" ground mount PV array during snowy winter?

[Mick Abraham via RE-wrenches]

Hello, Blake Gleason & All the Mechanix~

Travis Jordan astutely suggested "David Katz's single row system on 4"
posts, it would tilt to vertical and only be one mod high in portrait."

Mick here: If the site would accommodate something as wide & low as what
Travis described, you might ask Array Technologies if they can still
furnish their DuraRack AT "adjustable tilt" mounts. These resemble their
single axis Duratrack trackers, but without the automation electronics.
Each one can mount 12 to 16 modules laid out like playing cards side by
side. Seasonal tilt adjustment is handled by a geared down linear actuator
which in turn is driven by a cordless drill. Maximum tilt is 60 degrees
from horizontal; maybe that's steep enough or maybe not in Blake's extreme
jobsite.

I never had a suitable customer to match up with this solution, so I have
no direct experience with it. It might be worth a phone call to
Albuquerque 505.881.7567.

As always, "The Wrench List is the Bomb!"

Mick Abraham, Proprietor
www.abrahamsolar.com

Landline: 970-731-4675
Cell phone or for text messaging: 970-946-6584
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Re: [RE-wrenches] Sol-Ark grid tie question

[Jerry Shafer via RE-wrenches]

Jason
The programming is different with a battery vs no battery so if he is
removing the battery this may create an issue, I have not tried myself to
disconnect a battery once in place
Jerry

On Fri, Apr 1, 2022 at 11:52 AM Jason Szumlanski via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Fantastic. Thanks!
>
> As a follow up, he's considering connecting a battery bank with an
> Anderson connector. This is not the golf cart scenario I mentioned in
> another thread, but he wants to be able to wheel away his battery into
> storage. Don't ask me why... I can't figure it out myself. Do you see any
> issues with this? I guess the question I have is what happens when the
> battery is connected and he's on grid and he decides to disconnect the
> battery? I'm guessing nothing, but I could be wrong. Will he need to change
> the settings back to grid-tie only?
>
> Jason
>
>
>
>
>
>
> On Fri, Apr 1, 2022 at 2:29 PM Nick A Lucchese via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Jason, this will work just fine. I’ve not fully embraced a transition to
>> their products for my clients yet but had one recently where the customer
>> insisted on this for their project and I was in the exact scenario while we
>> waited for the battery to arrive. No external bypass required for this
>> reason. However it does not work without a minor setting activation and
>> even then there was a 10-20 second delay before the relay is closed and the
>> utility will pass through.
>>
>> Nick
>>
>>
>> > On Apr 1, 2022, at 9:29 AM, Jason Szumlanski via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>> >
>> > If you set up the inverter in a straight grid tie mode, does it still
>> pass power through to the load terminals when on grid?
>> >
>> > I ask this, because a client wants us to connect it with a backup load
>> panel but no battery right now. He wants to add the battery later.
>> >
>> > My other thought is to install a bypass switch to pass grid power
>> directly to the subpanel, which would act as a service bypass for the
>> future anyway.
>> >
>> > Jason Szumlanski
>> > Florida Solar Design Group
>>
>> ___
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Re: [RE-wrenches] Sol-Ark grid tie question

[Chris Sparadeo via RE-wrenches]

Hi Jason,

If he removes the battery bank, then the battery mode setting would need to
be changed to “no battery”. Luckily, very easy setting to access either in
front of the unit or remotely.

Best,

Chris


On Fri, Apr 1, 2022 at 2:52 PM Jason Szumlanski via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Fantastic. Thanks!
>
> As a follow up, he's considering connecting a battery bank with an
> Anderson connector. This is not the golf cart scenario I mentioned in
> another thread, but he wants to be able to wheel away his battery into
> storage. Don't ask me why... I can't figure it out myself. Do you see any
> issues with this? I guess the question I have is what happens when the
> battery is connected and he's on grid and he decides to disconnect the
> battery? I'm guessing nothing, but I could be wrong. Will he need to change
> the settings back to grid-tie only?
>
> Jason
>
>
>
>
>
>
> On Fri, Apr 1, 2022 at 2:29 PM Nick A Lucchese via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Jason, this will work just fine. I’ve not fully embraced a transition to
>> their products for my clients yet but had one recently where the customer
>> insisted on this for their project and I was in the exact scenario while we
>> waited for the battery to arrive. No external bypass required for this
>> reason. However it does not work without a minor setting activation and
>> even then there was a 10-20 second delay before the relay is closed and the
>> utility will pass through.
>>
>> Nick
>>
>>
>> > On Apr 1, 2022, at 9:29 AM, Jason Szumlanski via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>> >
>> > If you set up the inverter in a straight grid tie mode, does it still
>> pass power through to the load terminals when on grid?
>> >
>> > I ask this, because a client wants us to connect it with a backup load
>> panel but no battery right now. He wants to add the battery later.
>> >
>> > My other thought is to install a bypass switch to pass grid power
>> directly to the subpanel, which would act as a service bypass for the
>> future anyway.
>> >
>> > Jason Szumlanski
>> > Florida Solar Design Group
>>
>> ___
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> --
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Re: [RE-wrenches] Sol-Ark grid tie question

[Jason Szumlanski via RE-wrenches]

Fantastic. Thanks!

As a follow up, he's considering connecting a battery bank with an Anderson
connector. This is not the golf cart scenario I mentioned in another
thread, but he wants to be able to wheel away his battery into storage.
Don't ask me why... I can't figure it out myself. Do you see any issues
with this? I guess the question I have is what happens when the battery is
connected and he's on grid and he decides to disconnect the battery? I'm
guessing nothing, but I could be wrong. Will he need to change the settings
back to grid-tie only?

Jason






On Fri, Apr 1, 2022 at 2:29 PM Nick A Lucchese via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Jason, this will work just fine. I’ve not fully embraced a transition to
> their products for my clients yet but had one recently where the customer
> insisted on this for their project and I was in the exact scenario while we
> waited for the battery to arrive. No external bypass required for this
> reason. However it does not work without a minor setting activation and
> even then there was a 10-20 second delay before the relay is closed and the
> utility will pass through.
>
> Nick
>
>
> > On Apr 1, 2022, at 9:29 AM, Jason Szumlanski via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
> >
> > If you set up the inverter in a straight grid tie mode, does it still
> pass power through to the load terminals when on grid?
> >
> > I ask this, because a client wants us to connect it with a backup load
> panel but no battery right now. He wants to add the battery later.
> >
> > My other thought is to install a bypass switch to pass grid power
> directly to the subpanel, which would act as a service bypass for the
> future anyway.
> >
> > Jason Szumlanski
> > Florida Solar Design Group
>
>
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Re: [RE-wrenches] Sol-Ark grid tie question

[Nick A Lucchese via RE-wrenches]

Jason, this will work just fine. I’ve not fully embraced a transition to their 
products for my clients yet but had one recently where the customer insisted on 
this for their project and I was in the exact scenario while we waited for the 
battery to arrive. No external bypass required for this reason. However it does 
not work without a minor setting activation and even then there was a 10-20 
second delay before the relay is closed and the utility will pass through. 

Nick


> On Apr 1, 2022, at 9:29 AM, Jason Szumlanski via RE-wrenches 
>  wrote:
> 
> If you set up the inverter in a straight grid tie mode, does it still pass 
> power through to the load terminals when on grid?
> 
> I ask this, because a client wants us to connect it with a backup load panel 
> but no battery right now. He wants to add the battery later.
> 
> My other thought is to install a bypass switch to pass grid power directly to 
> the subpanel, which would act as a service bypass for the future anyway.
> 
> Jason Szumlanski
> Florida Solar Design Group 
> ___
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[RE-wrenches] Sol-Ark grid tie question

[Jason Szumlanski via RE-wrenches]

If you set up the inverter in a straight grid tie mode, does it still pass
power through to the load terminals when on grid?

I ask this, because a client wants us to connect it with a backup load
panel but no battery right now. He wants to add the battery later.

My other thought is to install a bypass switch to pass grid power directly
to the subpanel, which would act as a service bypass for the future anyway.

Jason Szumlanski
Florida Solar Design Group
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Re: [RE-wrenches] Water Pumping 24/7

[Darryl Thayer via RE-wrenches]

Thank you William, I did it from memory, which I should not trust at 85 it
is screwy
I should have gone back to 'first principles' instead of trusting the
memory of an old job.  Thank you

On Fri, Apr 1, 2022 at 9:23 AM William Miller via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Wrenches:
>
>
>
> I found some on-line pump HP calculators, such as this
>  one.  Plugging in 1
> gpm of water pumped to 300 feet elevation results in 0.1 HP, not 5.  I have
> no idea how Daryl arrived at 5 HP.
>
>
>
> Plugging in the 10 gpm we want, the HP required is a little over 1.  I
> tried several calculators and worked the formula myself and all approaches
> resulted in the same answer.
>
>
>
> William
>
>
>
> Miller Solar
>
> 17395 Oak Road, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com
>
> CA Lic. 773985
>
>
>
>
>
> *From:* Wesley Kennedy [mailto:hathaso...@yahoo.com]
> *Sent:* Monday, March 28, 2022 9:58 AM
> *To:* RE-wrenches
> *Cc:* William Miller; Darryl Thayer
> *Subject:* Re: [RE-wrenches] Water Pumping 24/7
>
>
>
> Hi Darryl,
>
> I’d love to see that math on that.you mind sharing?
>
> -Wes
>
> 303-653-3073
>
>
>
>
>
> On Mar 27, 2022, at 1:27 PM, Darryl Thayer via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
> 
>
> Hello, Sorry to be so late but I have been overloaded.  Just a note on
> physics of lifting water.  The calculation indicates if you pump 1 gallon
> per minute up 300 feet it required a water hp of 5 HP
>
> Use this base number and good pumps are about 70% efficient.  If the flow
> rate is not 1 GPM adjust the HP accordingly.  For example, if you want to
> pump 10 GPM it requires 50 HP  or if you want to pump 10 Gallons / day it
> requires (50HP/ 24h 60min )requiring 0,035 HP..
>
> Again I apologize for delay.
>
>
>
> On Wed, Mar 16, 2022 at 1:33 AM William Miller 
> wrote:
>
> 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] Ideas and racking systems for "stowing" ground mount PV array during snowy winter?

[Travis Jordan via RE-wrenches]

Blake,

You might try David Katz's single row system on 4" posts, it would tilt to
vertical and only be one mod high in portrait. He does not have engineering
on it, but it is very beefy and would have no issues as long as you tilted
it up in winter. I am very interested in more info on what you have in
mind, if his solution won't work for you we might be able to build
something custom that fits your needs. We have always reverted to an
adjustable multi-pole mount solution set very low to the ground for these
situations, sometimes dropping to only 3 or in some cases 2 mods high in
landscape (about the same height as one mod in portrait) to cut down on the
visual impact, but if you want to stand it vertical in winter it will end
up being that many mods straight up... or were you thinking of standing it
up differently? If the mods can handle the snow load we could design the
rack to handle a couple hundred psf snow load at only a couple mods high
and just leave them at summer tilt? Feel free to PM me if you want to
brainstorm a custom solution, I am a sucker for strange projects. Direct
email: tra...@mtsolar.us

*Travis Jordan*
tra...@jordansolar.net
*406-206-5070*
*Jordan Solar*
*jordansolar.net* 
ᐧ
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Re: [RE-wrenches] Water Pumping 24/7

[William Miller via RE-wrenches]

Wrenches:



I found some on-line pump HP calculators, such as this
 one.  Plugging in 1
gpm of water pumped to 300 feet elevation results in 0.1 HP, not 5.  I have
no idea how Daryl arrived at 5 HP.



Plugging in the 10 gpm we want, the HP required is a little over 1.  I
tried several calculators and worked the formula myself and all approaches
resulted in the same answer.



William



Miller Solar

17395 Oak Road, Atascadero, CA 93422

805-438-5600

www.millersolar.com

CA Lic. 773985





*From:* Wesley Kennedy [mailto:hathaso...@yahoo.com]
*Sent:* Monday, March 28, 2022 9:58 AM
*To:* RE-wrenches
*Cc:* William Miller; Darryl Thayer
*Subject:* Re: [RE-wrenches] Water Pumping 24/7



Hi Darryl,

I’d love to see that math on that.you mind sharing?

-Wes

303-653-3073





On Mar 27, 2022, at 1:27 PM, Darryl Thayer via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:



Hello, Sorry to be so late but I have been overloaded.  Just a note on
physics of lifting water.  The calculation indicates if you pump 1 gallon
per minute up 300 feet it required a water hp of 5 HP

Use this base number and good pumps are about 70% efficient.  If the flow
rate is not 1 GPM adjust the HP accordingly.  For example, if you want to
pump 10 GPM it requires 50 HP  or if you want to pump 10 Gallons / day it
requires (50HP/ 24h 60min )requiring 0,035 HP..

Again I apologize for delay.



On Wed, Mar 16, 2022 at 1:33 AM William Miller 
wrote:

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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