Re: [RE-wrenches] High altitude off-grid systems

WrenchesHere is the math, well the answer at sea level your body has 14.70 PSI exerted on it, at 10,000 feet you only have 10.163 PSI, reduced air pressure, reduced cooling or heating ability adjusted for standard sea level temp or just over 69%.I have done work in Hawaii on the big island up at

Re: [RE-wrenches] HV Module Testing

Current will pass through so just one hot leg to earth, be carefull not to overload the diodes, l have never had an issue but you never know. JerrySent from my Verizon, Samsung Galaxy smartphone Original message From: drake.chamber...@redwoodalliance.org Date: 4/10/19 3:07 PM

Re: [RE-wrenches] Dealing with HOAs.

WrenchesYes HOA's might be able to restrict pv under state law depending on your state, in Hawaii the rule is multi-family joined over 2 stories  they can say no, they can also restrict size to. You need to read the AOAO rules, know the state law pertaining  to your particular type of structure.

Re: [RE-wrenches] Voltage seeking transfer switch

Christopher I have used a Cummins 200 amp generator/grid transfer switch, it gives the gen start command, we used this so during normal operations we could pass through the full load where in backup mode the inverters took overSent from my Verizon, Samsung Galaxy smartphone Original mes

Re: [RE-wrenches] Outback question

KristopherEach box has it own set of bussing and breakers, not using a box how would you protect the DC inputs and what would you do with the AC outputs, bypass, that along with the DC wiring.I have installed 8 Radian in one location all with the box under the inverter.JerrySent from my Verizon,

Re: [RE-wrenches] Aquion Batteries

DarrylYou might want to look at Blue ion, have a bunch installed and they have been great "Mars Mission Ready" great, had a customer that survived the Fires 2 years ago and all the time with no power these batteries kept up.Jerry Sent from my Verizon, Samsung Galaxy smartphone Original

Re: [RE-wrenches] Lg chem

You need to check with your distributor because we have been installing for many months now, both master and slave batteriesJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: Kirk Herander Date: 12/14/18 6:43 AM (GMT-08:00) To: re-wrenches@lists.re-

Re: [RE-wrenches] Portable Power Centers

Peter/WrenchesLook at the Nlue Planet Blue Ion  batteries with the BMU, Thdy have a great Product designJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: Peter Parrish Date: 12/10/18 7:49 AM (GMT-08:00) To: RE-wrenches Subject: Re: [RE-wrenches]

Re: [RE-wrenches] Radian orders hardware problems

WrenchesI  have installed several in Hawaii in recent months and more in California, l have not had any issues with either out of the box or pre-wired. With the Shunts it may have been a batch but missing hardware is just that, missing. I will keep an eye out and we will see.Jerry Sent from my

Re: [RE-wrenches] Ni-Fe update?

WrenchesI have used Iron Edison Batteries and 12 volts is tough but l have had no issues at 48, you can set the high side voltage enough to work well. They are a very thirsty battery technology but may last for ever. Round trip efficiency is 70% at best so a larger array is required and the batt

Re: [RE-wrenches] Batt Cap AGM

presented it. How do you rotate strings? Where did you learn this? Is there an online source that you can provide? Thanks, Allan On 11/20/2018 6:21 PM, jerrysgarage01 wrote: Wrenches, Drake You may consider contacting "Batcap"

Re: [RE-wrenches] Batt Cap AGM

Wrenches, DrakeYou may consider contacting "Batcap" and bank if they have a best practice for the battery configuration, this might be it but at least a starting point. I have had multi string batteries that seamed to like being rotated through the bank, sounds like alot of work and it is but th

Re: [RE-wrenches] Microfractures

AndrewCorrect, its is all about time, temp cycles will all effect modules, arial IR testing generally  will not show new fractures.JerrySent from my Verizon, Samsung Galaxy smartphone Original message From: Andrew Truitt Date: 11/18/18 8:20 PM (GMT-08:00) To: RE-wrenches Su

Re: [RE-wrenches] Outback sold to PA battery company

WrenchesI spoke to a senior manager at Outback at SPI and they said that there they are an inverter company and regardless of ownership that would not change. At that time it was only a rumor and they may have been down playing the entire idea even after l said that they would be.Jerry Sent fr

Re: [RE-wrenches] Enphase tech support

WrenchesEnphase now has a call back feature which has greatly improved responce1-877-797-4743Have site ID ready when you callJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: Bill Hennessy Date: 6/13/18 8:44 AM (GMT-10:00) To: RE-wrenches

Re: [RE-wrenches] Xfmr's job?

The Radian has 2, 4k, 240 volt inverters, so its different but the way the computer works it makes the same from the load side of thingsJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: frenergy Date: 5/29/18 5:51 PM (GMT-10:00) To: re-wre

Re: [RE-wrenches] Pika energy equipment

I had a meeting with Pika at SPI 2017 it might have been all the other meetings but l was not impressed, no technical information on programming or true applications but thats just me.Jerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: jay Dat

Re: [RE-wrenches] Looking for insulated #6 bare standoff

Ray I have never (yet) had a wire failure in any of my trackers, l have always used PVC flex tubing connected at both ends with a long line that at any given point does not move much. I mainly use zomeworks passive sonhle axes trackers but have done it the same way with array technologes d

Re: [RE-wrenches] Electric Water kWh/ person

DrakeWe have used 40 to 80 gallon water heaters mainly the Rheem Marathon electric units, we used 15 minutes per person twice a day on the timer, we did use 7 day timers to have different start times on the weekends. We had great success with that as a base line.Jerry Sent from my Verizo

Re: [RE-wrenches] Li+ Systems Puerto Rico

DarrelI put a request to allow the data to be released, expect to have an answer soonJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: Darryl Thayer Date: 2/21/18 10:28 AM (GMT-10:00) To: RE-wrenches Subject: Re: [RE-wrenches] Li+ System

Re: [RE-wrenches] 1/2 HP well pump soft start at 120 VAC

WrenchesI think its in the inverter or battery but somewhere before it leaves the inverter flickering lights indicates the inverter is seeing the issue up close, a 4 k inverter is 33 amps AC but Over 166 from the 24 volt batteries if the load if half that with lights and inverter is strugl

Re: [RE-wrenches] Outback AC Coupling

KirpalWe have used tge solid state contactors but have not been happy with there reliability as they ofen have failed in the open position, the old coil contactors have been far better over time and seam to cost less. FYI, the solid state high amp contactors live longer with a heat sink.Je

Re: [RE-wrenches] blue planet batteries

JayNo there is no communication between the battery BMS and the inverterJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: jay Date: 1/4/18 8:35 AM (GMT-10:00) To: RE-wrenches Subject: [RE-wrenches] blue planet batteries While we are tal

Re: [RE-wrenches] blue planet batteries

JayOur office has done research on quit a gew batteries, the Blue Ion Blue Planets battery has been very good in our testing. Feel free to talk off listJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: jay Date: 1/4/18 8:35 AM (GMT-10:00)

Re: [RE-wrenches] Goofy roofing

WrenchesTake a look at Fastenall, thats all they doJerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: Glenn Burt Date: 6/10/17 9:38 AM (GMT-10:00) To: RE-wrenches , Jerry Caldwell Subject: Re: [RE-wrenches] Goofy roofing Mudge Fasteners

Re: [RE-wrenches] Firestone Metal Roof with S-5

WrenchesOur parent company does roofing and works with firestone, l do not know of any such rule BUT its safe to have the roofer do that and everyone is protected then why not. Remember it all about the customer and if they feel happy then we all are happy. But thats just me.Jerry. Sent

Re: [RE-wrenches] AC/DC in Same Trench?

WrenchesAs a matter of practice, we always use conduite, never direct burial, always copper too, we have had AC and DC in the same trench but with space seperating the conduits and have had no issues with noise or JHA. As a safety issue we would not risk direct burial of high voltage DC re

Re: [RE-wrenches] SB -40 Wi-Fi

HowieI here in Hawaii, we are slow to approve new inverters and it takes a very long time to get through permits so l can't say much about the SMA -40 Inverter. Regarding wifi vs hard line, maybe for one unit it would be easy but we just installed 27 of the SMA 24K -22 at one location and

Re: [RE-wrenches] SMA Arc-Fault

DaveDid you make your MC Cables, are there any jumpers used, l have seen crimped terminals cause faults and over time will overheat and fail open. Just a thought.Jerry Sent from my Verizon, Samsung Galaxy smartphone Original message From: Matthew Sirum Date: 11/14/16

Re: [RE-wrenches] Back-up generator/inverter shut-down relay

Wrenches Does not sound like there is an option to hard wire a shut down switch so here is an idea l have used. Program the genny to run at 58 Hz. not yp this will keep the inverters ftom starting up. None of the appliances will know but as long as the inverter programming does not allow for 58

Re: [RE-wrenches] Test procedure for Concorde batteries

Wrenches You can do a carbon pile test but the best way is testing under several conditions. Here is an option real easy and maybe faster, put a volt meter on each battery under constant charge conditions, higher volts on one battery meens high resistance in battery, low volts meens low resistan

Re: [RE-wrenches] Buck-Boost transformer to mitigate high voltage drop?

Wrenches We have done transformers for issues just like this with good results, the cost vs the new wire, conduit and trenching must be done to make sure which direction. We have had to use paired mcm 300 to make residentual so run the numbers Jerry Sent via the Samsung Galaxy S™ III, an AT&T

Re: [RE-wrenches] Standing seam metal roof attachments for copper roof

Can you use the S-5 brass clamps Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Daniel Tittmann Date:08/09/2016 10:53 AM (GMT-10:00) To: RE-wrenches Subject: [RE-wrenches] Standing seam metal roof attachments for copper roof W

Re: [RE-wrenches] Enphase Support Non-Responsive

Wrenches We have allot of enphase and ya sometimes it a little hard to get them on the line but we always do. I request the re-inbursments, l dont ever see them as they end up in the admin office. We have looked at and used a few other mico-inverters at customer request but they all seem to go o

Re: [RE-wrenches] grundfos SQFlex

Wrenches Make an artificial head by a valve to reduce flow on the outlet side, it might increase watt demand. They will voltage compensate so reducing volts will not do it. I have to ask why thats a problem anyway, the pump will turn off if the level gets to low anyway. Jerry Sent via the Sams

Re: [RE-wrenches] getting PV modules up to the roof

Wrenches We got one, takes a long time to set up, it works great but it seams either we got a 1 story or a high rise. We also have a crane which is a little costly to deploy but sure looks cool. Something else we use up to 3 stories is a sizzer truck, the whole box lifts up to the height, picked

Re: [RE-wrenches] Mobile solar trailer

WrenchesI have built 5 solar event trailers, for contractors, promotors, ect. We can talk off line. call if interested 7078882701Jerry Sent from my Verizon Wireless 4G LTE smartphone Original message From: Chris Schaefer Date: 5/9/2016 11:55 AM (GMT-10:00) To: RE-

Re: [RE-wrenches] Off-grid generator update?

Have you looked at Cummins,  we have have great luck and no programming issues but battery charging needs to be added foroff grid Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Ray Walters Date:04/28/2016 7:28 AM (GMT-10:00) To:

Re: [RE-wrenches] 480 single phase delta

What about an SMA Tri Power inverter Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Chris Mason Date:04/28/2016 8:52 AM (GMT-10:00) To: RE-wrenches Subject: Re: [RE-wrenches] 480 single phase delta You will use a 240:480v step

Re: [RE-wrenches] Inverter/AC pump compatibility question

You may want to check the ac voltage with a good "true RMS" meter and see what the results are, some (most) new Freq Drives, and soft start drives may have an issue with a high RMSJerry Sent from my Verizon Wireless 4G LTE smartphone Original message From: Roy Butler

Re: [RE-wrenches] Battery charging problems

ChrisA few questionsAre you drawing from both AC legs from the genny, at max of 2200 watts per leg then the genny should not have an issue but if you upsized the batteries and as stated by Mike the fuel delivery system cant keep up because the inverter charge load is higher, steady and for

Re: [RE-wrenches] Optimal 200 or 225 Amp Square D MSP All-in-One meter for CT Clamps

Can you get a meter main with only one breaker and then get a distribution panel and put all all loads there Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Gregory Seelhorst Date:02/17/2016 6:23 AM (GMT-10:00) To: RE-wrenches Subject

Re: [RE-wrenches] MIGB's

WrenchesWe have been using nema 3 metal, stainless or even pvc 4x4 boxes with plastic outdoor rated strain releafs, (same as sma has) also works on enphase, good wire splice point. Some onspectors like them under modules some like them exposed, l perfer under looks cleanerJerry Sent from

Re: [RE-wrenches] Schletter

We have used Schletter, it was spected on a project and i was not that impressed, took to long to get what we needed and when it was all done it works but l like what we have better. I have no reason to stock another product line.Jerry Sent from my Verizon Wireless 4G LTE smartphone -

Re: [RE-wrenches] Battery recommendation WAS: Rolls batteries

I have done stuff like this in the past, I would suggest talking to your local battery distributors and explain what you are doing they may be able to go to bat with there manufactures for you. Good luck  Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original mes

Re: [RE-wrenches] Pg&e meter reading

can you be more specific as to what fishy means? jay On Oct 11, 2015, at 4:04 PM, jerrysgarage01 wrote: Sounds a little fishy to me, is it a big residential or real small Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Jay Dat

Re: [RE-wrenches] Pg&e meter reading

Sounds a little fishy to me, is it a big residential or real small Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Jay Date:10/11/2015 9:13 AM (GMT-10:00) To: RE-wrenches Subject: [RE-wrenches] Pg&e meter reading I have a clien

Re: [RE-wrenches] AC-coupling Enphase/XW Causes Flickering of Lights

WrenchesCheck and confirm that the OB is not set in search, yhis will cause issues like this.Jerry Sent from my Verizon Wireless 4G LTE smartphone Original message From: jay Date: 09/21/2015 6:58 AM (GMT-10:00) To: RE-wrenches Subject: [RE-wrenches] AC-coupling En

Re: [RE-wrenches] Ground mount for east-west slope

Wrenches Its been a few years but I have gotten top plates from unirac UL- A racking that was tilited give them a call or even have them fab-ed up your self. Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: frenergy Date:08/21/2015 3

Re: [RE-wrenches] AC Coupled with Generator

Wrenches The ability for proper charging has always been an issue way back befor ac coupling was a thing. Its near an uncontrolled charge and if you tank the batteries and shut down that's it no charging from the ac coupling component  Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE sm

Re: [RE-wrenches] Trojan Batteries

Wrenches This may should a little like a old wives tail but I  used to see the same cell and or  artery failure over the years. Its all about resistance so I started rotating the batteries, this improved acid levels, life span and capacity.   Just try it out before you laugh it off. One thought i

Re: [RE-wrenches] to flash or not to flash

WrenchesWe stay away from anything with a rubber type boot as it will shrink over time in the shade of the array or not. You all night want to look at the sunmodo out of Washington. Have had no leak issues or installation issues, there is no exposed rubber and the flashing is malleable and can be s

Re: [RE-wrenches] Using the North Facing Roof

WrenchesI see this working south of the tropic of cancer but at 1000 watts per meter squared tilted north might work for a month a year but I don't think the tax credits were proposed for poor performance module installations. I see enphase annual  readings prove the point. Jerry Sent fr

Re: [RE-wrenches] DC conductor line loss numbers

Wrenchesthe VD is 105 VDC into  a charge controller, the engineer is looking good at it like it a grid tie running at wide open all the time, he will not listen to sugestions, that's the problem I haveJerry Sent from my Verizon Wireless 4G LTE smartphone Original message ---

Re: [RE-wrenches] Iron Edison Batteries

WrenchesI have had good experiences with these batteries and with the same issues with the magnum on 12 volts, don't seam to have any issues with my 48 volt systems. We did double up the cables to reduce the high load (overdriving) the radians with no issues. It's just the cost, but it sho

Re: [RE-wrenches] SMA 1800u not generating power

ower How do you get around the code requirement for the use of PV wire with a TL inverter on the existing array? Sincerely, Glenn Burt Sent from my 'smart' phone so please excuse grammar and typos. From: jerrysgarage01 Sent: ‎7/‎24/‎2015 12:57 To: RE-wrenches Subject: Re: [RE-wrenches]

Re: [RE-wrenches] SMA 1800u not generating power

SMA used to to do repairs but last I heard they no longer have replacement parts. I have used the new SMA TL-22 because of the low voltage dc input. If you added some additional modules to the "B" input it might qualify for the tax credit (I did say might) Good luck Jerry Sent via the Samsung

Re: [RE-wrenches] Trina Module Annual Degradation

Wrenches We used to use Sharp but now its Trina,  containers of 250 watt modules,  data logging has not shown any abnormal power loss. Now that I say this Trina as the story  goes debates there data so that is true it softens the blow a little. I have seen  some another brand that are cracking p

Re: [RE-wrenches] Slate roof attachment?

Completely agree, slate brakes if you look at it wrong and that being said who is responsible to remove the modules to replace the tiles for the next  how many years Jerry Sent from my Verizon Wireless 4G LTE smartphone Original message From: August Goers Date: 07/08/

Re: [RE-wrenches] Battery Bank to Inverter Wiring

Wrenches We always try to minimize in connection cables as well as home run cables to the shorted length possible, restating batteries to aid this should always be considered as well as positive and negative runs Jerry Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Orig

Re: [RE-wrenches] SnapNrack

Wrenches For the more traditional roofs we use unitary products but we use the iron ridge Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone Original message From: Dana Date:06/24/2015 12:09 PM (GMT-10:00) To: 'RE-wrenches' Subject: Re: [RE-wrenches] SnapNrack