Re: [RE-wrenches] Attaching Ground To Steel Frame

that this is no big deal as long as you use a TIG and a 309L rod. I can also just have a mild steel bolt welded to the frame, wire brush the stud before applying No-Ox, and tightening on a cable lug or compression lug with SS hardware. That is the tempest which resides in in my

[RE-wrenches] Attaching Ground To Steel Frame

other folks do to create a connection for a system grounding electrode conductor on a piece of equipment like this? Thanks, Mark Frye ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches

Re: [RE-wrenches] LI Battery For Stand Alone?

which sounds good on paper but would add another twist to the load calculation. Mark From: RE-wrenches On Behalf Of James Jarvis via RE-wrenches Sent: Tuesday, December 31, 2024 9:12 AM To: RE-wrenches Cc: James Jarvis Subject: Re: [RE-wrenches] LI Battery For Stand Alone? 80% DOD on an AGM

[RE-wrenches] LI Battery For Stand Alone?

this, I am wondering if LiPo has come far enough in terms of simplicity and reliability. Are folks now using LiPo successfully in this type of application? If so, which products? Thanks, Mark Frye ___ List sponsored by Redwood Alliance Pay optio

Re: [RE-wrenches] Telecomm Power Supply - Voltages

. Humm. From: RE-wrenches On Behalf Of Roy Butler via RE-wrenches Sent: Thursday, December 19, 2024 7:03 AM To: re-wrenches@lists.re-wrenches.org Cc: Roy Butler Subject: Re: [RE-wrenches] Telecomm Power Supply - Voltages Hi Mark, One thing to be aware of is capacitance inrush current, quite

[RE-wrenches] Telecomm Power Supply - Voltages

the other? Thanks, Mark Frye ___ 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

[RE-wrenches] Telecomm Power Supply - Some Questions

same enclosure as the electronics? If in the same enclosure do I still need some screened louver vents (I would think so). Thanks, Mark Frye ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address

[RE-wrenches] Better Internet Connected Charge Controller

application? Mark Frye ___ 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.cg

Re: [RE-wrenches] Battery Electrolyte Level Measuring

I found these photo sensors on Wish for $2.69. Detection distance is adjustable from 3 to 80cm. Run on 5V supply. I bought a couple and they work great. Cheap enough to buy a few and play with them. I wonder if they will detect the surface of a liquid? If so, this could easily be used by mountin

[RE-wrenches] Rugged Wind/Solar System For Radio

Gentlefolk, I have a 35 watt radio transmitter that I need to station in the desert for a critical application. Any recommendations for a turnkey provider of a combined solar/wind/battery system? Should I build it myself? Thanks, Mark Frye Berkeley Solar Electric Systems 530 401 8024

Re: [RE-wrenches] Cleaning PV mods

Indeed, spraying cold water on hot modules between the hours of 10A-2P (or maybe 9A and 3P) is simply foolish. Now the argument of rain being more dangerous than a cold hose is pretty weak. If it's raining, the modules are simply not going to be hot! It would only be an issue if conditions went fr

Re: [RE-wrenches] Fronius USA available 2023 & 2024 ?

I have zero experience with Growatt string inverters, only off-grid, and have only dealt with dissatisfied customers. Each inverter requires a separate transformer if you want split phase 240v. They also seem a bit wimpy on big loads. But then again - my opinion is worth every penny you have paid

[RE-wrenches] Recall: Conext Gateway question - need to reset to factory default

Mark Downing would like to recall the message, "Conext Gateway question - need to reset to factory default". ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wr

[RE-wrenches] Conext Gateway question - need to reset to factory default

I set the Admin password and promptly failed to write it down. I can't reset the password to default remotely unless I'm logged in as admin. I've tried the pinhole reset with no luck. The manual says to hold the power button 12 seconds; no luck. No beeps either. Any suggestions? __

Re: [RE-wrenches] Enphase IQ7 versus IQ8

Do you need the additional switch if you use the Enphase battery? From: RE-wrenches On Behalf Of Jason Szumlanski via RE-wrenches Sent: Tuesday, July 12, 2022 11:38 AM To: RE-wrenches Cc: Jason Szumlanski Subject: [RE-wrenches] Enphase IQ7 versus IQ8 I am trying to figure out why it is a good

Re: [RE-wrenches] Razors & Removing paint from solar modules

That would likely happen of the pressure spray were used on the back side of the modules. From: RE-wrenches On Behalf Of Solar Energy Solutions via RE-wrenches Sent: Friday, April 15, 2022 3:12 PM To: RE-wrenches Cc: Solar Energy Solutions Subject: Re: [RE-wrenches] Razors & Removing paint fr

[RE-wrenches] LiFePo4 Low Temp Charging Damage

some point, as ambient temperature drops, the pack will freeze and be damaged anyway? Thanks, Mark Frye ___ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org

Re: [RE-wrenches] 24VDC Fans

I have a couple I bought from Schott Applied Power years ago, but they happen to be 12".These were intended for attic fans.Mark Original Message Subject: Re: [RE-wrenches] 24VDC Fans From: Bob Maynard Date: Tue, April 20, 2021 5:38 pm To: RE-wrenches

Re: [RE-wrenches] Monitoring large PV systems

I do remember Fat Spaniel. I remember the day they came to our office to show us their product. It was an enclosure full of power strips, wall warts and wires going everywhere. Origins. On 4/10/2021 2:52 PM, Jerry Shafer wrote: Wrenches I have used many of the monitoring platforms, many of wh

Re: [RE-wrenches] Protecting New Roofing during Summer

I wore cougar paws for many years. I still had to protect brand new asphalt shingle roofs if they were at all warm. On 3/9/2021 12:47 PM, August Goers wrote: Corey and Others Who Have Used Cougar Paws: Have you found that these special shoes will protect the roof when it is hot out? It seems

Re: [RE-wrenches] Battery Specific Gravity versus Electrolyte Level

My Rolls manual says: "It is recommended to water the battery cells half way through the equalization. This is to assure the water is completely mixed into the electrolyte." ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-w

Re: [RE-wrenches] FMC in battery rooms

Perhaps we should be applying Article 500 to the installation of batteries as well. On 10/22/2020 10:02 AM, Kent Osterberg wrote: Jay, I suspect it is because FMC is not vapor tight and could be an unintentional path for hydrogen gas, or could allow acid vapors to condense on the enclosed wi

Re: [RE-wrenches] Microgrid... Outback or SMA or other?

The most important thing here is that no one is standing up to sing the praises of either SMA or Outback. I myself have sent about 2 hours on hold over 2 days trying to get an issue addressed by SMA. Re: Sol-Arc I would pay a lot extra or take some not so good aspect in exchange for good tec

Re: [RE-wrenches] Best Battery

I looked at this and decided on a new set of Rolls flooded lead calcium for my grid-tied backup system. On 8/9/2020 1:10 PM, Ken Schaal wrote:  Any thoughts on Kilovault that Morningstar is teaming up with? Time for me to replace my 10 yr old. Deka AGMs. Not many outages, mostly float. No TOU r

Re: [RE-wrenches] DC direct pond aeration replacement

I too need a source for 12V compressors to be used for pond aeration.I also would greatly appreciate any leads on a source.Thanks,Mark DowningHurshtown Alt. Power Original Message Subject: [RE-wrenches] DC direct pond aeration replacement From: "Dana Orzel" <d...@

Re: [RE-wrenches] SMA Sunny Storage AC-coupled with SB6.0 won't recharge LG Resu batteries during backup ops

Did SMA give anymore explanation as to why this set up does not work? On 7/10/2020 10:50 AM, scot.a...@solarcentex.com wrote: We have a design with Sunny Storage 6.0 inverter, SB 6.0 PV inverter, the SMA Automatic Backup Unit, and three LG Resu batteries. Works like a charm during normal grid

Re: [RE-wrenches] SPAN - Smart home electrical panel....

Built in auto transformer. On 6/15/2020 8:15 PM, Jim Duncan wrote: Anyone looking at these, yet? 32 Circuit Breaker Panel with (if looks like) individual (relay?) control on each circuit and CT Monitoring? I suppose Arc Fault Trip and GFI are built in? https://solarbuildermag.com/energy-storage

Re: [RE-wrenches] Magnum Frequency Shift

Jay, Do you use an NO or NC solid state relay? Mark On 6/13/2020 7:46 AM, Jay wrote: Hi Mark, Then the relay method is easy and reliable to use. Relay trips at whatever battery voltage you don’t want to exceed. I use a solid state relay with a good heat sink, only switching one leg. Jay

Re: [RE-wrenches] Magnum Frequency Shift

On. On 6/12/2020 7:27 PM, Jay wrote: Hi Mark Is this off grid or on? Jay On Jun 12, 2020, at 7:09 PM, Mark Frye wrote:  I see. What you say about the frequency shift being slow makes me again doubt the value of even using it in my application. I have a controller that can regulate

Re: [RE-wrenches] Magnum Frequency Shift

coupled array feeding the system. Brad On Fri, Jun 12, 2020 at 4:34 PM Mark Frye <mailto:ma...@berkeleysolar.com>> wrote: Yes an elite group within an elite group. So the SB240 does not have frequency shift /wattage control. How are you implementing charge control in stand a

Re: [RE-wrenches] Magnum Frequency Shift

d to an XW+5548. They are very solid performers. Brad AEE Solar On Fri, Jun 12, 2020 at 3:39 PM Mark Frye <mailto:ma...@berkeleysolar.com>> wrote: Hello, I have a small array of 8 - SMA SB240 microinverters on the roof. Peak power out of the array has never exceede

Re: [RE-wrenches] Magnum Frequency Shift

Hello, I have a small array of 8 - SMA SB240 microinverters on the roof. Peak power out of the array has never exceeded 1800 W. I am adding a Magnum MS-PAE 4448 with a 315 AH flooded Lead Calcium battery bank. Cheers On 6/12/2020 12:31 PM, Chris Schaefer wrote: G'Day Mark, Which

Re: [RE-wrenches] Magnum Frequency Shift

this feature as a backup to an AC dump load controller set to maintain Float voltage. On 6/12/2020 7:12 AM, Jay wrote: Hi Mark I found this which might be of help. https://www.magnum-dimensions.com/sites/default/files/MagArchive/AN-0002-AC-Coupling-Rev-5-10.pdf Jay Peltz power. On Jun 12, 202

[RE-wrenches] Magnum Frequency Shift

.5 Hz (in 0.3 volt increments) This is from my notes from a tech support call, but I am wondering if I have it mixed up. Protecting at 6 volts above the Absorb seems a bit high. Thanks, Mark ___ List sponsored by Redwood Alliance List Address: R

[RE-wrenches] Goal of charge regulation FLA vs LiFePo

different for a LiFePo? I am pretty sure it is much easier to damage a Li with bad charging, but why? Thanks, Mark ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings:

Re: [RE-wrenches] How much Li battery?

/2020 10:47 AM, la...@starlightsolar.com wrote: Hi Mark, One of the many benefits of Li-ion is the ability to provide much higher continuous current than any comparable size LA battery. You don’t need more than 2kWh (40Ah) and want to know the smallest battery you can use. To directly answer

Re: [RE-wrenches] How much Li battery?

mean its right. Ray Walters Remote Solar 303 505-8760 On 5/23/20 5:48 PM, Mick Abraham wrote: Greetings, All~ Mark Frye had asked:  "...with a

Re: [RE-wrenches] Split Phase Load Rating

et text 209 813 0060 On Mon, 25 May 2020 14:08:03 -0700, Mark Frye wrote: Folks, Back again into the way back machine, I once installed a system with multiply FX's stacked in a split-phase configuration. At the advice of the engineer, I also installed an auto-transformer across the line

[RE-wrenches] Split Phase Load Rating

hanks, Mark ___ List sponsored by Redwood Alliance 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 List-Archive: http://www.mail-archi

Re: [RE-wrenches] How much Li battery?

Humm, so maybe a 3kwhr would work for my situation. On 5/23/2020 10:55 AM, Jerry Shafer wrote: Mark The smallest battery I have used is the Blue Planet 8 kWhr. its a half stack in there cabinet with a 10.8 k PS-3 inverter system with about 6 k on the roof, 8 K is not much but this particular

[RE-wrenches] How much Li battery?

In the way back machine I remember being at a product roll out meeting for the brand new Outback FX inverter. I asked the engineer, what was the smallest battery bank that could be connected to the inverter. He said on the fly that probably you would want the battery to "weight" at least as muc

[RE-wrenches] OK, so what iwould happen if I do this...

five minutes. Voila, I can run house loads from 0 to 2kw with my existing GT PV with the balance of energy dumped as needed to the immersion heater. Right? Mark Frye ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re

Re: [RE-wrenches] Watch Out For Third party Tesla Modules - no warranty

I spoke with the vendor who sent me the email and she confirmed that the modules are not warranted by Panasonic, but rather by Tesla with slightly different terms, so all is well, buyer beware. On 1/10/2020 6:46 AM, Mark Frye wrote: I received a sales email for some of these recently

[RE-wrenches] Watch Out For Third party Tesla Modules - no warranty

I received a sales email for some of these recently. https://www.pv-tech.org/news/panasonic-warns-us-solar-installers-of-tesla-designated-panels-on-the-marke ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Cha

Re: [RE-wrenches] non-sensor based tracker controller

Most every industrial grade tracker run off of location and time, calculates the required array angle. The core code for this is open source out of NREL (your tax dollars at work). Still over my pay grade to actually integrate this into a home made tracker. On 12/2/2019 6:28 AM, Mac Lewis wrot

Re: [RE-wrenches] Parts List For AC Couple Disconnect

6:10 AM, Bradley Bassett wrote: Mark, The difference is that when AC coupled the power is coming backwards into the AC out. When it's charging from the grid or generator it is charging from the AC inputs. The inverter can control the charge from the inputs but not what is coming in re

Re: [RE-wrenches] Parts List For AC Couple Disconnect

have no communication with a Rule 21 GT inverter. The BB, it will just keep charging and charging with any extra energy coming from the GT inverter. The BB has no regulation, there is no absorb or float, just charge. jay peltz power On Nov 3, 2019, at 4:31 PM, Mark Frye wrote: OK, I am

Re: [RE-wrenches] hueRe: Parts List For AC Couple Disconnect

cture. That most commonly is ensured with an interposing relay controlled by the BB inverters knowledge of the battery charge, or a secondary device that performs the measurement. -Glenn Sent from my 'smart'phone, so please excuse typos and spelling errors. -- Original message

[RE-wrenches] hueRe: Parts List For AC Couple Disconnect

Happy Hour, yes it is that time here in our home. Thanks again, but I guess I don't see that there is a catastrophic result here, the BB raises the frequency and trips the GT. So what, as long as the BB returns to a standby. On 11/3/2019 4:31 PM, Mark Frye wrote: OK, I am hearing this

Re: [RE-wrenches] Parts List For AC Couple Disconnect

sti.net text 209 813 0060 On Sun, 3 Nov 2019 16:17:39 -0800, Mark Frye wrote: Folks, Please allow me to ask another question: Suppose I have a bi-direction inverter/charge with no connection to the grid. I have GT inverter ac coupled and producing 2000w. The battery is in float, and I have 200

Re: [RE-wrenches] Parts List For AC Couple Disconnect

does this end, when the batteries blow up? Is that the consequence of not disconnecting the GT? With many thanks in advance for your help in understanding. Mark ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org

Re: [RE-wrenches] Parts List For AC Couple Disconnect

ed to endlessly push available energy into the batteries. You can turn off the switch that connects the charger to the battery. Mark On 11/3/2019 11:13 AM, Kienan Maxfield wrote: Mark, Sorry, my post must not have been perfectly clear... I have total confidence in how the BB inverters work

Re: [RE-wrenches] Parts List For AC Couple Disconnect

ll, this is why I am asking. Anyone on the list have more confidence in their understand of BB inverters in off-grid mode with AC coupled GT inverters? Mark On 11/3/2019 10:44 AM, Kienan Maxfield wrote: Mark, I think that you're not understanding what Brian is saying. In any case, yo

Re: [RE-wrenches] Parts List For AC Couple Disconnect

coming back on line after tipping off. Mark On 11/3/2019 9:53 AM, Brian Mehalic wrote: With frequency-on/off, frequency power control, or other “inverter integrated” control based on battery voltage/state of charge there is also control in regards to when the ac coupled inverters come back on

Re: [RE-wrenches] Parts List For AC Couple Disconnect

vercharged, but rather to prevent the AC line from becoming unstable? I am hoping this is correct and that with $200 of industrial grade devices from Digikey I can implement a robust control that will disconnect the GT inverters before the AC line goes so high that the BB inverter

Re: [RE-wrenches] Parts List For AC Couple Disconnect

Glenn, OK, while I would prefer to not get into compiling code onto an ARM, my main question would be, how do you get the voltage value into the Arduino? Rectify the AC voltage and then voltage divide down to the chip input pin? Mark On 11/2/2019 10:14 AM, Glenn Burt wrote: Sounds like a

[RE-wrenches] Parts List : Reprise

Folks, I guess what I am asking is does anyone know of a cheaper way of implementing than: Digikey, Relay Monitor Voltage, 646-1145-ND, $117 each, Qty. 1 Digikey, On-Delay Timer, RTE-P1AF20, $49 each, Qty. 1 Digikey, Relay Socket, 27E891, $7 each, Qty. 2 Total = ~ $200 Thanks, Mark Frye

[RE-wrenches] Parts List For AC Couple Disconnect

voltage and latch a coil on when it raises above a set point (250VAC). I then want a timer to release the latch after about 1 hour. Sound about right? Are any vendors selling such a device? How about a parts list from Digikey? Thanks, Mark Frye

[RE-wrenches] Recycling of LI vs Pb

future? This is why I ask about the recyclablility / sustainability of Li batteries? Some what agnostic here but wondering what the thinking around this is? Thanks, Mark Frye ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re

[RE-wrenches] Amphenol Connectors

Speaking of Tesla... What with Walmart and (Amazon?) suing them for PV fires... Can anyone here give a brief run down on the whole Amphenol UTX (?) defective or cross-mated connector story? Thanks, Mark Frye ___ List sponsored by Redwood

Re: [RE-wrenches] 30 amp disconnect/40 amp breaker

high load/over load conditions which are not relevant to the situation we are talking about. Another way of saying this, which would be more sensible is: yes, evaluate the circuit in both directions, but only consider the load to be continuous in the direction from the inverter to the grid. Mar

Re: [RE-wrenches] 120/240 to 3 phase 120/208

Years ago I used something called a RotoPhase Phase Converter to supply some 3ph equipment on a site that only had 1ph (2ph?). Not efficient. On 8/6/2019 6:30 PM, Jay wrote: Hi all Is there a way to convert a 120/240v generator to a 120/208 3 phase output? Thx Jay ___

Re: [RE-wrenches] Enphase and Tesla Powerwall

Uh, Looking at what is happening with Tesla's share price, I am not sure I would want to be "investing" in the products of the neglected solar division. With Elon alone at the wheel , the Powerwall et. al. might go the way of the Dodo before too long. I have been working lately with folks who

[RE-wrenches] Generator for DC Coupled System

Folks, Has anyone had the chance to work with the Polar Power DC generators such as https://www.polarpower.com/wp-content/uploads/8220K-972_0115.pdf ? Anyone aware of good alternatives? Thanks, Mark Frye ___ List sponsored by Redwood Alliance

Re: [RE-wrenches] Altitude and controllers

Higher altitude equals lower air density equals lower capacity for heat transfer to atmosphere equals more heat build up inside equipment. On 8/20/2018 10:18 AM, ch...@oasismontana.com wrote: Hi Folks: What is the deal with altitude restrictions on charge controllers and other solid state c

Re: [RE-wrenches] Silly off grid

Please let the list know when you get your first request for off-grid Bitcoin mining.  :-) On 7/24/2018 11:57 AM, Ray wrote: Oh boy, do I get a bunch of calls for folks wanting to take a 24/7 grow operation off grid.  Dana nailed it: Green house. Even with LED grow lights the numbers are ju

[RE-wrenches] Disappearing Thread

Could have sworn there was a thread here about melted batteries, but it not showing in my email client anymore. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://

Re: [RE-wrenches] Conduit Across "Walkway"

Thanks Brian, I would read this as saying that I CAN run a conduit across the walkway since it would be only a "minimal obstruction". MarK On 4/19/2018 8:34 AM, Brian Mehalic wrote: Mark- The 2018 IFC and IRC both state "Pathways shall be located in areas with minimal obs

[RE-wrenches] Conduit Across "Walkway"

Folks, I have a 3 foot "walkway" on a roof pitch and between two separate arrays, as required. Is there anything that prevents me from running a conduit between the two arrays, across the "walkway"? Thanks, Mark Frye _

Re: [RE-wrenches] Location of DC disconnect vis-a-vis rapid shutdown exemption

what might need to be "Outside readily accessible". Is there something other than 690.12 that I need to look at? Mark On 4/15/2018 8:26 PM, Darryl Thayer wrote: I think the code says Outside readily accessible, On Sun, Apr 15, 2018 at 12:22 PM, Mark Frye <mailto:ma...@berkeleysola

[RE-wrenches] Location of DC disconnect vis-a-vis rapid shutdown exemption

he DC disconnect to the exemption from rapid shutdown, right? Mark Frye ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wr

Re: [RE-wrenches] TJI rafters

If you can take multiple 1/4" lags, you can consider the Hollaender Speed Rail square flange. I have used this to built steel pipe rack, then attaching solar rail to the pipe with u-bolts. On 3/3/2018 12:45 PM, Ray wrote: I can see that the TJI manu doesn't want us blowing 3/8" lags through

Re: [RE-wrenches] blue planet batteries

Looking at the info on-line, it does seem like you are going to need significantly more foot print for higher capacity systems. But had to laugh when I saw the note, "Ideal for Eco-Mansions". Hadn't heard that one before. On 1/4/2018 10:35 AM, jay wrote: While we are talking about batteries,

[RE-wrenches] Cougar Paws Size 14

Friends, I have a pair of size 14 Cougar Paws, boot in very good condition, insert somewhat worn. I would be happy to give them to someone that can wear them, for the price of shipping. Contact me off-line if you can use them. Mark Frye p.s. Hoping this does not violate list rules as I

Re: [RE-wrenches] Apollo Contact

The strange days of CitizenRe and it's plans to join with Apollo to deliver solar thru vertical marketing are now well in the past; subsumed and surpassed by Solar City / Tesla, which will pass into the annals of history in it's own time.. CitizenRE...they had it right, but but they di

[RE-wrenches] SMA and Tigo

I was looking at the SMA web-site and it appears that the solution to address 2017 module level shutdown is basically to incorporated Tigo optimizers. That seems like a big win for Tigo. Has anyone used the Power+ Solution yet? Mark ___ List

Re: [RE-wrenches] Li-ion

Jerry I cant seem to find this vendor on the web. Can you send information on how to find them? Thanks, Mark On 3/17/2017 5:55 PM, Jerry Shafer wrote: Wrenches We have been using V2 Li ion batteries, their BMS works well, we are now testing two systems with an air conditioner, one 5 k and

[RE-wrenches] NEC 2014 In California - 690.47(D)

ecker (who went out of his way to site and circle a call out to 690.47(D) on my plan set) and the inspectors who signed the permit card. Mark ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver

Re: [RE-wrenches] Fwd: RE: Grid neutral

vailing forces that would otherwise reduce the current in the neutral. Mark On 11/25/2016 5:27 PM, Allan Sindelar wrote: Wrenches, Is there such a thing as a "grid neutral"? I have been providing design support to a client for a large off grid system; a prepper, rare in these pa

Re: [RE-wrenches] Direct Burial PV Wire?

"inverter wall" for some particular reason? Mark Frye Berkeley Solar Electric Systems On 9/27/2016 1:50 PM, Corey Shalanski wrote: Umm, is PV Wire rated for direct burial? I have seen several manufacturer spec sheets that suggest this is the case, but I haven't heard of anyone ever

Re: [RE-wrenches] Splices in service panel

; and then indicate physical location of new subpanel (e.g. directly below this panel, etc.). I hope that helps. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner NABCEP™ Certified PV Installation Professional NABCEP™ Certified Technical Sales Professional NM EE98J Licensed E

Re: [RE-wrenches] Undersize wire on REC meter lug

the main lug. We love the Milbank U5934XL <http://www.milbankworks.com/blog/wp-content/uploads/2013/03/SolarSockets_8-13_Web2.pdf>, which accepts down to #12. It is our standard for residential REC meter cans. Cheers, Mark ---- Mark Westbrock| VP, Branch Manager | Employee Owner N

Re: [RE-wrenches] Tracker controller service?

For custom tracker controller development, diagnosis, and replacement, we recommend Mogens Lauritzen at www.lauritzen.biz <http://www.lauritzen.biz> . We have used them for replacement of flaky single axis controllers, and their work has been flawless. Mark Byington Cobalt

Re: [RE-wrenches] 120% rule for hybrid inverters

erter(s) output circuit current and the rating of the overcurrent device protecting the busbar", that the latter refers to the main breaker protecting the busbar from the utility. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner NABCEP™ Certified PV Installation

Re: [RE-wrenches] 120% rule for hybrid inverters

l not exceed 120%". So, the 2014 wording basically allows all inverters to follow the exception that used to be there for hybrid inverters. I hope that helps. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner NABCEP™ Certified PV Installation Professional NABCEP™

Re: [RE-wrenches] speaking of warranties

with the strange cell patterns actually tested out with a better observed vs. expected ratio than the Sunivas, which do not show the worm-tracks on their cells. Cheers, Mark Mark Westbrock| VP, Branch Manager | Employee Owner ​SunPower by Positive Energy Solar NABCEP™ Certified PV

Re: [RE-wrenches] Sonnen Battery & Outback Radian Inverter

ll be in 3 years and if still operational, how many person-hours of support and maintenance will have been expended. Mark Frye On 6/18/2016 4:48 AM, Chris Mason wrote: Here's the internals of the one we installed. https://www.dropbox.com/s/m0ie2tuqe7y1x9d/2016-06-15%2011.01.43.jpg?dl=0 It&

[RE-wrenches] DC Fuses on TL Inverters

e required for one or two strings in parallel; fuses required on + and - leads for 3 or more strings in parallel. Mark Byington Cobalt Power Systems, Inc. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.o

[RE-wrenches] Radian vs SI - Shunt for SOC Control

ntrol. What about with the SI? Does it implement it's SOC controls even without an external shunt? Thanks, Mark Frye Berkeley Solar Electric Systems ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change

[RE-wrenches] Automotive PV Supplies

A buddy of mine is rigging his van with PV and is looking for some help. Can anyone suggest a good website for picking components like wire and fuses etc.? Thanks, Mark Frye Berkeley Solar Electric Systems ___ List sponsored by Redwood Alliance

Re: [RE-wrenches] Frozen T-105s

>>> Completely thaw them before attempting to charge them. << Date: Thu, December

Re: [RE-wrenches] Tis the season

You might try Rain-X. Original Message Subject: [RE-wrenches] Tis the season From: "Chris Daum" Date: Tue, December 01, 2015 8:43 pm To: "'RE-wrenches'" Dear people:   SO, is there any slick (hah!) product that

[RE-wrenches] Off grid system to move and install in southern Indiana

(4) L-16 batteries and the balance of system items.If there is anyone willing and able to help them out, please contact me off-list.Thanks,Mark ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver

Re: [RE-wrenches] Trojan Batteries

It does not bode well that Trojan is currently back ordered on at least some AGM batteries until October in order for them to address issues on their manufacturing line. On 8/12/2015 6:44 PM, Ray Walters wrote: Oh I'm going to risk the wrath of Trojan and others, but I can confirm issues with

[RE-wrenches] Aquion Energy

Does anyone have any thoughts/experience with the Aquion Energy battery? Mark Frye Berkeley Solar Electric Systems ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings:

[RE-wrenches] SI/SB MicroGrid - Recovery From Low Battery Shut Off

to even if they had power available from the PV? How is this handled? It seems to me you would always want to have some amount of PV DC coupled. Thanks, Mark Frye Berkeley Solar Electric Systems ___ List sponsored by Redwood Alliance List Address: R

Re: [RE-wrenches] Milwaukee Sub Scanner versus Bosch D-Tect versus others?

confidence on the rafter location by doing many many passes in order to develop a kind of night sky of markings where the rafter showed up as the milky way. Haven't used the D-Tect since. Mark Frye On 5/10/2015 6:02 AM, Matt Partymiller wrote: We have tried a number of products. The D-Te

Re: [RE-wrenches] Solar cooker plans request

#x27;m sure results vary for each individual oven, and of course, climatic conditions. Cheers, Mark *Mark Westbrock* Branch Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales Positive Energy, Inc. 510

Re: [RE-wrenches] Corrugated Roof Brackets

with a dynaflash. Although the manufacturer's literature also shows using this product with pro-panel type roofs, for those we prefer either standoffs with dyna-flash or Schletter Fix-Ts. Cheers, Mark ---- *Mark Westbrock* Branch Manager & Employee-Owner NM EE98J Journeyman Electrici

Re: [RE-wrenches] Corrugated Roof Brackets

sister up trusses so that you have a structural member directly below a corrugation peak. *Mark Westbrock* Branch Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales Positive Energy, Inc. 510 S. Ma

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