Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?

2022-04-17 Thread Kirk Herander via RE-wrenches
I'd be curious if they have any type of online monitoring, at least for the
grie-tie versions.

On Sun, Apr 17, 2022 at 4:28 PM Darryl Thayer via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Hi Peter, My Cybro experience was from maybe 10 years ago; at that time,
> they did not have any 485 connection or Lithium connection.  If the Li
> battery has a built-in BMS the Cybro has the standard charge profiles,  of
> bulk, absorb, and float, I do not remember a refloat.  The
>
> On Sun, Apr 17, 2022 at 11:16 AM petertor--- via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> This is great information folks. It looks like Cybo has most of the load
>> scenarios covered.
>>
>> I have one last question before I call them on Monday morning: "Do the
>> Cybo inverters support LiFePO4 batteries? That is, does one of their four
>> DC inputs not only auto-detect batteries but does it recognize LiFePO4 vs.
>> PbAcid? It is my understanding that LiFePO4 batteries need a different
>> charging cycle compared to PbAcid to attain a 100% SOC.
>>
>> - Peter
>>
>> Peter T. Parrish, Ph.D.
>> President, California Solar Engineering
>> 1107 Fair Oaks Blvd Ste. 351
>> South Pasadena, CA 91030
>> (323) 839-6108
>>
>> On 04/16/2022 3:59 PM Darryl Thayer via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>>
>> yes, there are three versions of the cybo inverter, the one that I a most
>> familiar with produced a 60 HZ AC signal; the voltage did not exceed 120
>> volts or 240 volts.  The voltage out times the current out was equal to the
>> voltage in times current in.  This allowed me to operate a resistance load,
>> like a water heater.
>>
>> On Sat, Apr 16, 2022 at 2:39 PM Glenn Burt via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>> Take a look at Cybo inverters
>>
>> -Glenn
>> Sent from my 'smart'phone, so please excuse typos and spelling errors.
>>
>> -- Original message--
>> *From: *petertor--- via RE-wrenches
>> *Date: *Sat, Apr 16, 2022 12:49 PM
>> *To: *re-wrenches@lists.re-wrenches.org;
>> *Cc: *peter...@pobox.com;
>> *Subject:*[RE-wrenches] Is There an "Off-grid" (i.e. constant voltage)
>> Version of Microinverters?
>>
>> It has been a while since I installed a PV system, so I apologize in
>> advance for my ignorance wrt product availability.
>>
>> I recently had need for the off-grid equivalent of a grid-tied
>> microinverter. I have an assortment of new and not so new PV modules such
>> as the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a
>> microinverter that makes available 120 Vac (or 240 Vac but 120 is
>> preferable), 60 Hz. I would then take the output of these microinverters
>> and combine them in a subpanel. I do not have a need for battery storage.
>>
>> I can explain more about the application to anyone who has an interest.
>>
>> Does such an component exist?
>>
>> Thanks in advance for any help.
>>
>> - Peter
>>
>> Peter T. Parrish, Ph.D.
>> President, California Solar Engineering
>> 1107 Fair Oaks Blvd Ste. 351
>> South Pasadena, CA 91030
>> (323) 839-6108
>> ___
>> 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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Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?

2022-04-17 Thread Darryl Thayer via RE-wrenches
Hi Peter, My Cybro experience was from maybe 10 years ago; at that time,
they did not have any 485 connection or Lithium connection.  If the Li
battery has a built-in BMS the Cybro has the standard charge profiles,  of
bulk, absorb, and float, I do not remember a refloat.  The

On Sun, Apr 17, 2022 at 11:16 AM petertor--- via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> This is great information folks. It looks like Cybo has most of the load
> scenarios covered.
>
> I have one last question before I call them on Monday morning: "Do the
> Cybo inverters support LiFePO4 batteries? That is, does one of their four
> DC inputs not only auto-detect batteries but does it recognize LiFePO4 vs.
> PbAcid? It is my understanding that LiFePO4 batteries need a different
> charging cycle compared to PbAcid to attain a 100% SOC.
>
> - Peter
>
> Peter T. Parrish, Ph.D.
> President, California Solar Engineering
> 1107 Fair Oaks Blvd Ste. 351
> South Pasadena, CA 91030
> (323) 839-6108
>
> On 04/16/2022 3:59 PM Darryl Thayer via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>
> yes, there are three versions of the cybo inverter, the one that I a most
> familiar with produced a 60 HZ AC signal; the voltage did not exceed 120
> volts or 240 volts.  The voltage out times the current out was equal to the
> voltage in times current in.  This allowed me to operate a resistance load,
> like a water heater.
>
> On Sat, Apr 16, 2022 at 2:39 PM Glenn Burt via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
> Take a look at Cybo inverters
>
> -Glenn
> Sent from my 'smart'phone, so please excuse typos and spelling errors.
>
> -- Original message--
> *From: *petertor--- via RE-wrenches
> *Date: *Sat, Apr 16, 2022 12:49 PM
> *To: *re-wrenches@lists.re-wrenches.org;
> *Cc: *peter...@pobox.com;
> *Subject:*[RE-wrenches] Is There an "Off-grid" (i.e. constant voltage)
> Version of Microinverters?
>
> It has been a while since I installed a PV system, so I apologize in
> advance for my ignorance wrt product availability.
>
> I recently had need for the off-grid equivalent of a grid-tied
> microinverter. I have an assortment of new and not so new PV modules such
> as the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a
> microinverter that makes available 120 Vac (or 240 Vac but 120 is
> preferable), 60 Hz. I would then take the output of these microinverters
> and combine them in a subpanel. I do not have a need for battery storage.
>
> I can explain more about the application to anyone who has an interest.
>
> Does such an component exist?
>
> Thanks in advance for any help.
>
> - Peter
>
> Peter T. Parrish, Ph.D.
> President, California Solar Engineering
> 1107 Fair Oaks Blvd Ste. 351
> South Pasadena, CA 91030
> (323) 839-6108
> ___
> 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/
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>
>
> Peter T. Parrish, Ph.D.
> President, SolarGnosis
> 1107 Fair Oaks Blvd Ste. 351
> South Pasadena, CA 91030
> (323) 839-6108
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
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>
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Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?

2022-04-17 Thread Darryl Thayer via RE-wrenches
I presented a paper several years ago outlining a similar system using one
thermal water heater and comparing it to a PV-based system.  In my tests,
the PV-system outperformed the solar thermal system in energy per square
foot of collector.  There were sometime the Solar Thermal would out
perform at midday and bright sun.  But not for the whole day the PV system
would always win.  The trick was operation of the thermostat, the Cybro
made it possible to use the normal switch.  The other method for switching
was a capacitor across the terminals.

On Sun, Apr 17, 2022 at 1:09 PM Kirk Herander via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Cybo is quite interesting. Makes me want to change my refusal to install
> solar DHW anymore.
>
> On Sun, Apr 17, 2022 at 12:16 PM petertor--- via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> This is great information folks. It looks like Cybo has most of the load
>> scenarios covered.
>>
>> I have one last question before I call them on Monday morning: "Do the
>> Cybo inverters support LiFePO4 batteries? That is, does one of their four
>> DC inputs not only auto-detect batteries but does it recognize LiFePO4 vs.
>> PbAcid? It is my understanding that LiFePO4 batteries need a different
>> charging cycle compared to PbAcid to attain a 100% SOC.
>>
>> - Peter
>>
>> Peter T. Parrish, Ph.D.
>> President, California Solar Engineering
>> 1107 Fair Oaks Blvd Ste. 351
>> South Pasadena, CA 91030
>> (323) 839-6108
>>
>> On 04/16/2022 3:59 PM Darryl Thayer via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>>
>> yes, there are three versions of the cybo inverter, the one that I a most
>> familiar with produced a 60 HZ AC signal; the voltage did not exceed 120
>> volts or 240 volts.  The voltage out times the current out was equal to the
>> voltage in times current in.  This allowed me to operate a resistance load,
>> like a water heater.
>>
>> On Sat, Apr 16, 2022 at 2:39 PM Glenn Burt via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>> Take a look at Cybo inverters
>>
>> -Glenn
>> Sent from my 'smart'phone, so please excuse typos and spelling errors.
>>
>> -- Original message--
>> *From: *petertor--- via RE-wrenches
>> *Date: *Sat, Apr 16, 2022 12:49 PM
>> *To: *re-wrenches@lists.re-wrenches.org;
>> *Cc: *peter...@pobox.com;
>> *Subject:*[RE-wrenches] Is There an "Off-grid" (i.e. constant voltage)
>> Version of Microinverters?
>>
>> It has been a while since I installed a PV system, so I apologize in
>> advance for my ignorance wrt product availability.
>>
>> I recently had need for the off-grid equivalent of a grid-tied
>> microinverter. I have an assortment of new and not so new PV modules such
>> as the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a
>> microinverter that makes available 120 Vac (or 240 Vac but 120 is
>> preferable), 60 Hz. I would then take the output of these microinverters
>> and combine them in a subpanel. I do not have a need for battery storage.
>>
>> I can explain more about the application to anyone who has an interest.
>>
>> Does such an component exist?
>>
>> Thanks in advance for any help.
>>
>> - Peter
>>
>> Peter T. Parrish, Ph.D.
>> President, California Solar Engineering
>> 1107 Fair Oaks Blvd Ste. 351
>> South Pasadena, CA 91030
>> (323) 839-6108
>> ___
>> 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
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Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?

2022-04-17 Thread Kirk Herander via RE-wrenches
Cybo is quite interesting. Makes me want to change my refusal to install
solar DHW anymore.

On Sun, Apr 17, 2022 at 12:16 PM petertor--- via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> This is great information folks. It looks like Cybo has most of the load
> scenarios covered.
>
> I have one last question before I call them on Monday morning: "Do the
> Cybo inverters support LiFePO4 batteries? That is, does one of their four
> DC inputs not only auto-detect batteries but does it recognize LiFePO4 vs.
> PbAcid? It is my understanding that LiFePO4 batteries need a different
> charging cycle compared to PbAcid to attain a 100% SOC.
>
> - Peter
>
> Peter T. Parrish, Ph.D.
> President, California Solar Engineering
> 1107 Fair Oaks Blvd Ste. 351
> South Pasadena, CA 91030
> (323) 839-6108
>
> On 04/16/2022 3:59 PM Darryl Thayer via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>
> yes, there are three versions of the cybo inverter, the one that I a most
> familiar with produced a 60 HZ AC signal; the voltage did not exceed 120
> volts or 240 volts.  The voltage out times the current out was equal to the
> voltage in times current in.  This allowed me to operate a resistance load,
> like a water heater.
>
> On Sat, Apr 16, 2022 at 2:39 PM Glenn Burt via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
> Take a look at Cybo inverters
>
> -Glenn
> Sent from my 'smart'phone, so please excuse typos and spelling errors.
>
> -- Original message--
> *From: *petertor--- via RE-wrenches
> *Date: *Sat, Apr 16, 2022 12:49 PM
> *To: *re-wrenches@lists.re-wrenches.org;
> *Cc: *peter...@pobox.com;
> *Subject:*[RE-wrenches] Is There an "Off-grid" (i.e. constant voltage)
> Version of Microinverters?
>
> It has been a while since I installed a PV system, so I apologize in
> advance for my ignorance wrt product availability.
>
> I recently had need for the off-grid equivalent of a grid-tied
> microinverter. I have an assortment of new and not so new PV modules such
> as the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a
> microinverter that makes available 120 Vac (or 240 Vac but 120 is
> preferable), 60 Hz. I would then take the output of these microinverters
> and combine them in a subpanel. I do not have a need for battery storage.
>
> I can explain more about the application to anyone who has an interest.
>
> Does such an component exist?
>
> Thanks in advance for any help.
>
> - Peter
>
> Peter T. Parrish, Ph.D.
> President, California Solar Engineering
> 1107 Fair Oaks Blvd Ste. 351
> South Pasadena, CA 91030
> (323) 839-6108
> ___
> 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/
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>
> List rules & etiquette:
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> update participant bios: http://www.members.re-wrenches.org
>
>
> Peter T. Parrish, Ph.D.
> President, SolarGnosis
> 1107 Fair Oaks Blvd Ste. 351
> South Pasadena, CA 91030
> (323) 839-6108
> ___
> 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:
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Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?

2022-04-17 Thread petertor--- via RE-wrenches


 
 
  
   This is great information folks. It looks like Cybo has most of the load scenarios covered. 
  
  
   
  
  
   I have one last question before I call them on Monday morning: "Do the Cybo inverters support LiFePO4 batteries? That is, does one of their four DC inputs not only auto-detect batteries but does it recognize LiFePO4 vs. PbAcid? It is my understanding that LiFePO4 batteries need a different charging cycle compared to PbAcid to attain a 100% SOC.
  
  
   
  
  
   - Peter
  
  
   
  
  
   Peter T. Parrish, Ph.D.
   President, California Solar Engineering
   1107 Fair Oaks Blvd Ste. 351
   South Pasadena, CA 91030
   (323) 839-6108
  
  
   
  
  
   
On 04/16/2022 3:59 PM Darryl Thayer via RE-wrenches  wrote:
   
   

   
   

   
   

 yes, there are three versions of the cybo inverter, the one that I a most familiar with produced a 60 HZ AC signal; the voltage did not exceed 120 volts or 240 volts.  The voltage out times the current out was equal to the voltage in times current in.  This allowed me to operate a resistance load, like a water heater. 

   
   
   

 On Sat, Apr 16, 2022 at 2:39 PM Glenn Burt via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:
 


 
  
   
Take a look at Cybo inverters
   
   

   
   

 -Glenn


 Sent from my 'smart'phone, so please excuse typos and spelling errors.

   
  
  
   

 


 -- Original message--


 From: petertor--- via RE-wrenches


 Date: Sat, Apr 16, 2022 12:49 PM


 To: re-wrenches@lists.re-wrenches.org;


 Cc: peter...@pobox.com;


     Subject:[RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?


 

   
   

 It has been a while since I installed a PV system, so I apologize in advance for my ignorance wrt product availability. 


 


 I recently had need for the off-grid equivalent of a grid-tied microinverter. I have an assortment of new and not so new PV modules such as the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a microinverter that makes available 120 Vac (or 240 Vac but 120 is preferable), 60 Hz. I would then take the output of these microinverters and combine them in a subpanel. I do not have a need for battery storage.


 


 I can explain more about the application to anyone who has an interest.


 


 Does such an component exist?


 


 Thanks in advance for any help.


 


 - Peter


 Peter T. Parrish, Ph.D.President, California Solar Engineering1107 Fair Oaks Blvd Ste. 351South Pasadena, CA 91030(323) 839-6108

   
  
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   ___ 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
  
  
   
  
  
   Peter T. Parrish, Ph.D.President, SolarGnosis1107 Fair Oaks Blvd Ste. 351South Pasadena, CA 91030(323) 839-6108
  
 

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Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?

2022-04-16 Thread Darryl Thayer via RE-wrenches
yes, there are three versions of the cybo inverter, the one that I a most
familiar with produced a 60 HZ AC signal; the voltage did not exceed 120
volts or 240 volts.  The voltage out times the current out was equal to the
voltage in times current in.  This allowed me to operate a resistance load,
like a water heater.

On Sat, Apr 16, 2022 at 2:39 PM Glenn Burt via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Take a look at Cybo inverters
>
> -Glenn
> Sent from my 'smart'phone, so please excuse typos and spelling errors.
>
> -- Original message--
> *From: *petertor--- via RE-wrenches
> *Date: *Sat, Apr 16, 2022 12:49 PM
> *To: *re-wrenches@lists.re-wrenches.org;
> *Cc: *peter...@pobox.com;
> *Subject:*[RE-wrenches] Is There an "Off-grid" (i.e. constant voltage)
> Version of Microinverters?
>
> It has been a while since I installed a PV system, so I apologize in
> advance for my ignorance wrt product availability.
>
> I recently had need for the off-grid equivalent of a grid-tied
> microinverter. I have an assortment of new and not so new PV modules such
> as the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a
> microinverter that makes available 120 Vac (or 240 Vac but 120 is
> preferable), 60 Hz. I would then take the output of these microinverters
> and combine them in a subpanel. I do not have a need for battery storage.
>
> I can explain more about the application to anyone who has an interest.
>
> Does such an component exist?
>
> Thanks in advance for any help.
>
> - Peter
>
> Peter T. Parrish, Ph.D.
> President, California Solar Engineering
> 1107 Fair Oaks Blvd Ste. 351
> South Pasadena, CA 91030
> (323) 839-6108
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Re: [RE-wrenches] Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?

2022-04-16 Thread Glenn Burt via RE-wrenches
Take a look at Cybo inverters-GlennSent from my 'smart'phone, so please excuse 
typos and spelling errors.-- Original message--From: petertor--- via 
RE-wrenchesDate: Sat, Apr 16, 2022 12:49 PMTo: 
re-wrenches@lists.re-wrenches.org;Cc: peter...@pobox.com;Subject:[RE-wrenches] 
Is There an "Off-grid" (i.e. constant voltage) Version of Microinverters?
  
   It has been a while since I installed a PV system, so I apologize in advance 
for my ignorance wrt product availability. 
  
  
   
  
  
   I recently had need for the off-grid equivalent of a grid-tied 
microinverter. I have an assortment of new and not so new PV modules such as 
the Solaria mono, 400 Wp and the Jinko poly, 310 Wp. I would like a 
microinverter that makes available 120 Vac (or 240 Vac but 120 is preferable), 
60 Hz. I would then take the output of these microinverters and combine them in 
a subpanel. I do not have a need for battery storage. 
  
  
   
  
  
   I can explain more about the application to anyone who
 has an interest.
  
  
   
  
  
   Does such an component exist?
  
  
   
  
  
   Thanks in advance for any help.
  
  
   
  
  
   - Peter
  
  
   Peter T. Parrish, Ph.D.President, California Solar Engineering1107 Fair Oaks 
Blvd Ste. 351South Pasadena, CA 91030(323) 839-6108
  
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