[RE-wrenches] In Need of a Solaredge 17.3k Inverter
Hi Wrenches, ` If anyone has an SE 17.3k in stock that they do not need in the immediate future (~12 weeks) please contact me off list. We have just wrapped a 140 kW commercial job and we were shorted one inverter. Thanks in advance, Nick Welch Sugar Hollow Solar (937) 623-4026 NC Electrical License #U34779, NABCEP PVIP 102216-012581 ___ 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
[RE-wrenches] DC Disconnect for first responders
Friends: Here is how this resolved for my upcoming project: I submitted a request to the building department to waive the requirement for a DC disconnect. I based the justification on the need to keep a pressure pump for the fire sprinklers and a fire alarm operational. I will supply an external AC disconnect to de-energize all premise wiring except those circuits mentioned above. The request was granted. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985 ___ 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
Re: [RE-wrenches] DC Disconnect for first responders
Did they ever explain why they were requiring it on a nominal 48 volt system? NEC 480.7(B) (from memory, I think that is the right article) says it is for nominal voltage of 60 volts or higher. IE your 48 volt system is exempt. Jay pointed this out on February 3rd. -James Jefferson Jarvis APRS World, LLC +1-507-454-2727 http://www.aprsworld.com/ On Mon, Feb 20, 2023 at 12:36 PM William Miller via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Friends: > > > > Here is how this resolved for my upcoming project: I submitted a request > to the building department to waive the requirement for a DC disconnect. I > based the justification on the need to keep a pressure pump for the fire > sprinklers and a fire alarm operational. I will supply an external AC > disconnect to de-energize all premise wiring except those circuits > mentioned above. The request was granted. > > > > William > > > > Miller Solar > > 17395 Oak Road, Atascadero, CA 93422 > > 805-438-5600 > > www.millersolar.com > > CA Lic. 773985 > > > > > ___ > 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 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
Re: [RE-wrenches] DC Disconnect for first responders
480.7 is Disconnect Methods, and addresses different scenarios and voltages (A) is for batteries "with a voltage over 60 volts dc" requiring a disconnect accessible to and within sight of the battery (B) is in regards to 1- and 2-family dwellings, and doesn't specify a voltage, just that an external, emergency disconnect is required (C) is segmenting strings into 240 Vdc nominal or less segments, and on it goes to (G) I don't agree with the earlier statement in this chain (and I didn't dig up the original thread to see it in context) - based on how the Section is arranged; if the 60 volt requirement applied to both (A) and (B) then they would most likely be (A)(1) and (A)(2), under an (A) heading that included a statement to the effect of "For stationary storage batteries of 60 volts blah blah the following shall apply." As it is now, the emergency disconnect requirement (B) doesn't specify a voltage above which it applies, and the voltage specification in (A) doesn't apply to (B). Cheers, Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 National Electrical Code® CMP-4 Member (520) 204-6639 Solar Energy International http://www.solarenergy.org On Mon, Feb 20, 2023 at 11:40 AM James Jarvis via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Did they ever explain why they were requiring it on a nominal 48 volt > system? NEC 480.7(B) (from memory, I think that is the right article) says > it is for nominal voltage of 60 volts or higher. IE your 48 volt system is > exempt. > > Jay pointed this out on February 3rd. > > > -James Jefferson Jarvis > APRS World, LLC > +1-507-454-2727 > http://www.aprsworld.com/ > > > On Mon, Feb 20, 2023 at 12:36 PM William Miller via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > >> Friends: >> >> >> >> Here is how this resolved for my upcoming project: I submitted a request >> to the building department to waive the requirement for a DC disconnect. I >> based the justification on the need to keep a pressure pump for the fire >> sprinklers and a fire alarm operational. I will supply an external AC >> disconnect to de-energize all premise wiring except those circuits >> mentioned above. The request was granted. >> >> >> >> William >> >> >> >> Miller Solar >> >> 17395 Oak Road, Atascadero, CA 93422 >> >> 805-438-5600 >> >> www.millersolar.com >> >> CA Lic. 773985 >> >> >> >> >> ___ >> 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 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 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
[RE-wrenches] absolyte GP battery question/ sideways mounting.
HI All, I was just contacted by someone who has a 6 yr old absolyte GP 100G33 battery that has lost a lot of capacity. The manual only lists a horizontal install, but this was installed on its side which I”m guessing was due to space issues. I am thinking that isn’t good for it, but hopefully someone actually knows if this is bad for it or not. I have only seen pictures but am just trying to inform myself before I head out. Its also possible that the settings are incorrect which could be the cause as well. Thanks in advance jay ___ 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
Re: [RE-wrenches] absolyte GP battery question/ sideways mounting.
Hey Jay, This is this is only anecdotal but I have two UPS's with sealed batteries. One sits where the battery is up right. The other one sits on its side and the battery is horizontal. The longevity of the battery in the one oriented upright is about double the other one. Todd On February 20, 2023 1:43:49 PM jay via RE-wrenches wrote: HI All, I was just contacted by someone who has a 6 yr old absolyte GP 100G33 battery that has lost a lot of capacity. The manual only lists a horizontal install, but this was installed on its side which I”m guessing was due to space issues. I am thinking that isn’t good for it, but hopefully someone actually knows if this is bad for it or not. I have only seen pictures but am just trying to inform myself before I head out. Its also possible that the settings are incorrect which could be the cause as well. Thanks in advance jay ___ 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 Sent with AquaMail for Android https://www.mobisystems.com/aqua-mail ___ 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
Re: [RE-wrenches] absolyte GP battery question/ sideways mounting.
Flat is the preferred orientation and they say that if installed with the cells vertical it would lose some small percentage of capacity. They never said anything about reduced life that I remember. It is very easy to have short life on these if not fully charged very often. The will sulphate very easily. Also quality is not what it had been. Brad Sent from my iPhone > On Feb 20, 2023, at 1:43 PM, jay via RE-wrenches > wrote: > > HI All, > > I was just contacted by someone who has a 6 yr old absolyte GP 100G33 battery > that has lost a lot of capacity. > > The manual only lists a horizontal install, but this was installed on its > side which I”m guessing was due to space issues. > > I am thinking that isn’t good for it, but hopefully someone actually knows if > this is bad for it or not. > > I have only seen pictures but am just trying to inform myself before I head > out. Its also possible that the settings are incorrect which could be the > cause as well. > > Thanks in advance > > jay > > > ___ > 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 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
Re: [RE-wrenches] absolyte GP battery question/ sideways mounting.
They do make a "single cell module" version that is upright, in a steel case, with the terminals on top; its top is a different color and dimensions than the front of the rack-mounted ones in their literature. Brian Mehalic NABCEP Certified Solar PV Installation Professional™ R031508-59 National Electrical Code® CMP-4 Member (520) 204-6639 Solar Energy International http://www.solarenergy.org On Mon, Feb 20, 2023 at 3:13 PM Bradley Bassett via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Flat is the preferred orientation and they say that if installed with the > cells vertical it would lose some small percentage of capacity. They never > said anything about reduced life that I remember. It is very easy to have > short life on these if not fully charged very often. The will sulphate very > easily. Also quality is not what it had been. > > Brad > > > Sent from my iPhone > > > On Feb 20, 2023, at 1:43 PM, jay via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > > > HI All, > > > > I was just contacted by someone who has a 6 yr old absolyte GP 100G33 > battery that has lost a lot of capacity. > > > > The manual only lists a horizontal install, but this was installed on > its side which I”m guessing was due to space issues. > > > > I am thinking that isn’t good for it, but hopefully someone actually > knows if this is bad for it or not. > > > > I have only seen pictures but am just trying to inform myself before I > head out. Its also possible that the settings are incorrect which could be > the cause as well. > > > > Thanks in advance > > > > jay > > > > > > ___ > > 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 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 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
