Re: [RE-wrenches] Solar Module fire ratings

2014-02-07 Thread Mark Frye
So does this help understand why Sunrun bought REC and Snap n Rack? Going forward the only installable equipment will be provided by large groups that can afford to test and rate their own panel with specific racking systems that they also own? Mark On 2/7/2014 9:38 AM, David Brearley wrote

Re: [RE-wrenches] California State Fire Marshal's "Solar Photovoltaic Installation Guidelines"

2014-02-13 Thread Mark Frye
which appears to say one thing about fire rating ie. needs to be the same as roof And we got the UL thing that seems to be based on the combined rating of the module and racking system Wow, I commend anyone who is willing to go into a building department and lay down a set of plans. Mark On

Re: [RE-wrenches] Lithium ion

2014-02-28 Thread Mark Frye
enough? Mark Frye Berkeley Solar Electric Systems On 2/28/2014 10:33 AM, Larry Crutcher, Starlight Solar Power Systems wrote: Ray, I had a 100AH battery for about 3 weeks of testing. I worked it hard. I even over discharged it once. It worked perfectly at different charge and discharge rates

Re: [RE-wrenches] Combining Multiple Inverters

2014-07-14 Thread Mark Westbrock
I agree that the exact placarding will depend on your AHJ, but you will certainly want one that says something like "This breaker panel is for combining solar inverter outputs. Do not add any additional breakers or make any circuit connections". *Mark Westbrock* Field Manager

[RE-wrenches] Mounting PV array on Quonset hut

2014-07-31 Thread Mark Westbrock
hut. Does anyone have any suggestions and/or photos of such an installation? Thanks, Mark *Mark Westbrock* Field Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales <http://positiveenergyso

Re: [RE-wrenches] Assembly Protects Conductors?

2014-08-23 Thread Mark Frye
o every element of the circuit (the conductors) but only to the 100% rated assemblies and OCP themselves. What am I missing? Thanks, Mark On 8/22/2014 6:14 PM, Ray Walters wrote: Most combiner boxes, DC rated breakers, and DC rated fuses and fuse holders we use today, qualify as assembl

Re: [RE-wrenches] Assembly Protects Conductors?

2014-08-23 Thread Mark Frye
Wow. OK Ray. This issue of 100% rated under continious use is interesting. Thanks for helping me get my head around it. The exception in 210.19 is certainly explicit. Too bad, for this one man, the exception in 690.8 is less so. Mark On 8/23/2014 10:35 AM, Ray Walters wrote: The 100

[RE-wrenches] Cooler Modules

2014-09-10 Thread Mark Frye
Folks, Two identical PV modules are mount in an identical fashion and exposed to identical irradiance. One module is open circuit. The other is connected to a load and producing power. Is there a difference in the temperature of the two modules? If so, which one is cooler? Mark Frye

Re: [RE-wrenches] Load Side Tap

2014-09-14 Thread Mark Frye
Max, Don't do the tap alone, you would be overdriving the subpanel. You would need 200A of OCP somewhere between the tap and sub panel loads. Convert the MOL to a 200A Main Breaker or install a 200A fused disconnect between the tap and the MLO subpanel. Mark Frye Berkeley Solar Ele

Re: [RE-wrenches] TL inverter with long DC Feeder

2014-10-06 Thread Mark Westbrock
If you don't want to combine strings at the array, then I would use a Square D HU361 for each string. It is a lot of hardware, but not too expensive and very straightforward for a lay person to shut off without risk. Cheers, Mark ---- *Mark Westbrock* Field Manager & Employee-Owner

Re: [RE-wrenches] TL Inverters

2014-10-07 Thread Mark Byington
dding larger units to the line that has the Secure Power Supply. They added the 6 kW unit earlier this year, and just announced the 7 kW unit with Secure Power Supply. Mark Byington Cobalt Power Systems, Inc. ___ List sponsored by Redwood All

Re: [RE-wrenches] Warranty replacements

2014-10-15 Thread Mark Richardson
both money and headaches by not doing warranty replacement work for free. [USLE Email Signature (240x42)] Mark Richardson Production Manager CELL: 518-965-4148 From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Rebecca Lundberg Sent: Wednesday, October 15, 2014 4

Re: [RE-wrenches] SMA TL meter communication interference?

2014-10-17 Thread Mark Westbrock
I would point your utility to the SMA spec sheet that shows that the inverter is FCC Part 15 (Class A & B) compliant. ---- *Mark Westbrock* Field Manager & Employee-Owner NM EE98J Journeyman Electrician NABCEP Certified PV Installation Professional NABCEP Certified PV Technical Sales

Re: [RE-wrenches] Pathfinder vs. Suneye

2014-10-29 Thread Mark Richardson
top, right, bottom). These handles should be dragged so that the translucent box frames the outside of the plastic Pathfinder housing." Mark [USLE Email Signature (240x42)] Mark Richardson Production Manager CELL: 518-965-4148 From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches

Re: [RE-wrenches] wire sizing question

2015-01-03 Thread Mark Frye
Yes, beautiful. But I am still trying to figure out if it is NEC compliant. At first pass, it seems like it is missing a few disconnecting means. On 1/3/2015 10:48 AM, Larry wrote: Wow, Jarmo! That is some incredible workmanship and a great way to interconnect multiple inverters and chargers.

Re: [RE-wrenches] TL Inverters & Rapid Shutdown

2015-01-19 Thread Mark Westbrock
SPS will be deenergized. Installer will need to run a communications cable up to the roof, so either 600V rated CAT5 cable in your DC conduit, or a separate conduit. I hope all is well with you down in Texas. Cheers, Mark *Mark Westbrock* Branch Manager & Employee-Owner NM E

Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule Questions

2015-02-02 Thread Mark Frye
Jerry, What unit did you use? Mark Frye On 2/2/2015 7:43 AM, Jerry Shafer wrote: Wrenches We have installed some of these rapid shut down units and they are always located close to the array and ours kill the DC instantly as long as the inverter was running when this accures did not test

Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule Questions

2015-02-02 Thread Mark Frye
OK. So did you run a line 120V up to the box on the roof to energize the coil of the relay up there? Mark Frye On 2/2/2015 9:13 AM, Jerry Shafer wrote: The units we have used have a large contactor inside the combiner box made by AMtec Solar. this was required to control the shut down

Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule Questions

2015-02-02 Thread Mark Frye
I see. So they have another box on the ground floor with the "kill" switch and that box includes a 120/240 vac to 24vdc xfrm to drive the contactor coil on the roof? So you run 120/240 vac to the box with the "kill" switch? Mark Frye On 2/2/2015 10:52 AM, Glenn Burt wrot

Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule Questions

2015-02-02 Thread Mark Frye
by 120vac. Either way, pull the meter, no more AC and no more power to the contactor coil on the roof, so DC limited to the location of the contactor. Not really sure how the requirement for the stop switch got into the Code. Mark Frye On 2/2/2015 11:11 AM, Mark Frye wrote: I see. So they ha

Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule Questions

2015-02-02 Thread Mark Frye
Right, so the the "kill" switch is not really needed, but yet it is required! ? On 2/2/2015 1:09 PM, Jerry Shafer wrote: You pull the meter you close the contact thats it so ypu dont hit the button but same results On Feb 2, 2015 11:06 AM, "Mark Frye" <mailto:

[RE-wrenches] How to isolate the array DC

2015-02-02 Thread Mark Frye
nnected to the premise AC, when the the main is opened or the meter pulled, the array Dc will become isolate. Therefore, there is no need for the "stop" switch and yet as I understand it, such a switch is now required by the Code. The switch is not needed but

Re: [RE-wrenches] How to isolate the array DC

2015-02-02 Thread Mark Frye
rovide the operation of rapid shutdown and the system be labeled accordingly, not that it needs a dedicated switch to perform the function. Glenn -Original Message- From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mark Frye Sent: Monday, February 02, 2015 4:24

Re: [RE-wrenches] Rapid Shut Down and the 10 Second Rule Questions

2015-02-03 Thread Mark Frye
Thanks David, This is very helpful. Mark Frye On 2/3/2015 12:04 PM, David Brearley wrote: Mark, Bill Brooks’ rapid shutdown article for SolarPro does a nice job walking through the individual subsections of 690.12. He also addresses initiation device (type and location), which is not

[RE-wrenches] How Is Rapid Shut-Down Not A Farse...

2015-02-05 Thread Mark Frye
ve the switch the FD will save your home, if you don't they will let it burn down, even if you have a 690.12 compliant system that does not include an "initiator switch"? Mark Frye ___ List sponsored by Redwood Alliance List Address: RE

Re: [RE-wrenches] How Is Rapid Shut-Down Not A Farse...

2015-02-06 Thread Mark Frye
son for the system to have proper feedback to let the firefighters know that the PV really was disconnected. boB On 2/5/2015 8:37 PM, Jerry Shafer wrote: Mark and the wrenches group You do have a point, in the many years of my PV life, we have had three building fires not at all related to th

[RE-wrenches] Enphase Gen4 - How Is It Doing?

2015-02-06 Thread Mark Frye
Folks, How is the Gen4 Enphase (M250) holding up in the field? Any marked improvement over M215 in terms of failures? Mark Frye ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address

Re: [RE-wrenches] Enphase Gen4 - How Is It Doing?

2015-02-08 Thread Mark Frye
All my M215's are stable in the field. (100% of M190 and M380 replaced at Enphase's cost) Anyone using the M250? Any feedback? Mark On 2/8/2015 6:46 AM, Jason Szumlanski wrote: M215 failures? I've seen only 1 or 2 out of thousands. The M215 was a remarkable improvement over th

Re: [RE-wrenches] Main Service Fuse rated higher than Bus Rating of attached sections?

2015-02-17 Thread Mark Frye
it is very small and if one did, damage to the equipment would be limited that area. This is the essence of allowing taps. Mark Frye On 2/17/2015 6:17 AM, Allen Frishman wrote:Wrenchers, I run into lots of Service Equipment that has a Large Service Switch which feeds multiple Sections with th

Re: [RE-wrenches] Main Service Fuse rated higher than Bus Rating of attached sections?

2015-02-17 Thread Mark Frye
1. You need to know the actual rating of any sub-section buss that you will be backfeeding with PV. Do not backfeed this buss with more than 100% of it's ampacity. 2. Evaluate 120% of the 4000A buss against the 3500A main and all PV backfeed all of the subsections. Mark Frye On 2/17/2

Re: [RE-wrenches] Corrugated Roof Brackets

2015-03-05 Thread Mark Westbrock
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

Re: [RE-wrenches] Corrugated Roof Brackets

2015-03-06 Thread Mark Westbrock
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] Solar cooker plans request

2015-03-12 Thread Mark Westbrock
#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] Milwaukee Sub Scanner versus Bosch D-Tect versus others?

2015-05-10 Thread Mark Frye
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-wrenches] SI/SB MicroGrid - Recovery From Low Battery Shut Off

2015-06-06 Thread Mark Frye
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-wrenches] Aquion Energy

2015-07-16 Thread Mark Frye
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: [RE-wrenches] Trojan Batteries

2015-08-12 Thread Mark Frye
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] Automotive PV Supplies

2016-01-09 Thread Mark Frye
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-wrenches] Radian vs SI - Shunt for SOC Control

2016-01-16 Thread Mark Frye
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] DC Fuses on TL Inverters

2016-01-29 Thread Mark Byington
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: [RE-wrenches] Sonnen Battery & Outback Radian Inverter

2016-06-18 Thread Mark Frye
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: [RE-wrenches] speaking of warranties

2016-06-30 Thread Mark Westbrock
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] 120% rule for hybrid inverters

2016-08-12 Thread Mark Westbrock
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] 120% rule for hybrid inverters

2016-08-12 Thread Mark Westbrock
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] Tracker controller service?

2016-09-01 Thread Mark Byington
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] Undersize wire on REC meter lug

2016-09-02 Thread Mark Westbrock
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] Splices in service panel

2016-09-09 Thread Mark Westbrock
; 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] Direct Burial PV Wire?

2016-09-28 Thread Mark Frye
"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] Fwd: RE: Grid neutral

2016-11-26 Thread Mark Frye
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-wrenches] NEC 2014 In California - 690.47(D)

2017-02-11 Thread Mark Frye
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] Li-ion

2017-03-18 Thread Mark Frye
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] SMA and Tigo

2017-05-15 Thread Mark Frye
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] Apollo Contact

2017-06-02 Thread Mark Frye
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] Cougar Paws Size 14

2017-10-02 Thread Mark Frye
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] small battery boxes

2011-12-30 Thread Mark Dickson
Hi Jeff, Check out http://www.automationdirect.com/adc/Shopping/Catalog/Enclosures I have had good luck with them. They carry just about any size, configuration or material NEMA box. You can also purchase pop-in louvers from them. Best regards, Mark Dickson, NABCEP Certified Solar PV

[RE-wrenches] Shedding ice

2012-01-16 Thread Mark Dickson
nd battery capacity and some way to sense the ice at the very least. . . It sounds good in theory, but I am skeptical as to whether it will work in reality. . . Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. _ From: re-wrenches-boun..

Re: [RE-wrenches] Shedding ice

2012-01-16 Thread Mark Dickson
none the less, if it works. . . Do you have any idea on how much power it takes in order to accomplish this? Would doubling or tripling the system capacity cut it? Also, how will the classic determine if there is in fact snow or ice on the module? Best regards, Mark Dickson, NABCEP

Re: [RE-wrenches] Shedding ice

2012-01-16 Thread Mark Dickson
Just thinking out loud here, but wondering if it would pay to attach an insulated back to the panel for the winter months to decrease the convection. I may need to set up a lab here and find out. . . Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc

[RE-wrenches] 24 vs. 48

2012-01-17 Thread Mark Frye
AH rating? Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay peltz Sent: Tuesday, January

Re: [RE-wrenches] 24 vs. 48

2012-01-17 Thread Mark Frye
OK, But let's assume only one string, how important is it to develop a higher bulk charge current? Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com -Original Message- From: re-wrenches-boun...@lists.re-wrenche

Re: [RE-wrenches] 24 vs. 48

2012-01-17 Thread Mark Frye
o maintain...less watering, less SG measuring, lower overall "part" (individual 2V cells) count? Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org

Re: [RE-wrenches] battery buss bars

2012-01-17 Thread Mark Frye
Polaris has the enitre grey fine stranded line of connectors. Not sure if Burndy has connectors that are rated for fine stranded if that is what you are using. Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com -Original

Re: [RE-wrenches] 24 vs. 48

2012-01-17 Thread Mark Frye
apacity 2v cells, there is a size range where a 24V system may in fact be the best choice. Thanks and good luck with it out there. Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 www.berkeleysolar.com -Original Message- From: re-wre

Re: [RE-wrenches] Paralleling Mutlitple Inverter

2012-01-22 Thread Mark Frye
center for things like monitoring equipment, it is reasonable that the above remain unchanged so long as there is permanent marking stating that no additional load circuits can be added (only supported by Code to the extent AHJ's can make determination of acceptability.) Mark Frye Berkeley

Re: [RE-wrenches] Paralleling Multiple Inverter

2012-01-22 Thread Mark Frye
the service, then the dedicated load center can be main lug without main breaker. If the dedicated load center is located on a buidling remote from the the service, then it will need a main breaker rated at 125A. Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530

Re: [RE-wrenches] Paralleling Multiple Inverter

2012-01-22 Thread Mark Frye
the Code makers? Why did they include the language "capable of supplying multiple branch " if their intent was other than to allow the use of dedicated load centers? Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 <

Re: [RE-wrenches] Paralleling Multiple Inverter

2012-01-22 Thread Mark Frye
Rich, If you have an archive of Wrenches email, also see thread on this subject dating on and about March 29, 2011. Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401-8024 <http://www.berkeleysolar.com/> www.berkeleysolar.com _ Fr

Re: [RE-wrenches] NABCEP Sales

2012-01-29 Thread Mark Frye
groups have succesfully integrated the financial services into the product offering. 0$ down leases are now the main offering. This is a huge bar that the small shops can't even begin to touch. Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City, CA 95959 (530) 401

[RE-wrenches] How Is The M215 Doing?

2012-01-31 Thread Mark Frye
Folks, How is the Enphase M215 doing? Is it showing marked improvements in reliability over the previous generation units? Is the cable system going in OK? I've worked with the M190 and M380 but not the M215? Thanks, Mark Frye Berkeley Solar Electric Systems 303 Redbud Way Nevada City

[RE-wrenches] Tax Credit for New Construction

2012-02-07 Thread Mark Byington
, or both. Mark Byington Cobalt Power Systems, Inc. ma...@cobaltpower.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenche

Re: [RE-wrenches] Battery Experience

2012-02-09 Thread Mark Dickson
will probably continue to sell them while at the same time looking for other options and taking their 10 year warranty with a grain of salt. Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. Mark Dickson, Certified Solar PV Installer _ From

Re: [RE-wrenches] Concorde AGMs

2012-02-23 Thread Mark Dickson
I was told by Surrette to use Black RTV sealant. Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. _ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Larry Crutcher,Starlight

Re: [RE-wrenches] Concorde AGMs

2012-02-23 Thread Mark Dickson
cover with the RTV. So no not an AGM, but I figure it is the same basic electrolyte chemistry-no? Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. _ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re

[RE-wrenches] Grid-Tied, PV by AC or DC

2012-03-01 Thread Mark Frye
pling now available, do we yet know which is the more advantagous architecture; grid-tied, battery-based inverter w/ PV on the DC side via charge controllers, or grid-tied, battery-based inverter w/ PV AC coupled via grid-tied, utility-based inverter? Your thoughts? Mark Frye Berkeley Solar Ele

[RE-wrenches] SMK Connectors

2012-03-06 Thread Mark Dickson
Hello, Just now ordering our first modules that have SMK connectors--anyone know if these will mate with either MC4 or Tyco? Frustrating. . . Best regards, Mark Dickson, NABCEP Certified Solar PV Installer ™ Oasis Montana Inc. _ From: re-wrenches-boun...@lists.re

Re: [RE-wrenches] Listed Battery Enclosure?

2012-03-22 Thread Mark Frye
Is there a Standard to which a battery enclosure can be tested such that it can be listed and marked as conforming to the requirements of performance that a battery enclosure must conform to in order for that battery enclosure to be used as a battery enclosure? Is the inspector looking at the

Re: [RE-wrenches] Listed Battery Enclosure?

2012-03-22 Thread Mark Frye
Still, if you put 2 x 4's on the ground between the batteries and the floor, wouldn't the 2x4's have to be UL listed? On 3/22/2012 3:53 PM, Brian Teitelbaum wrote: Jeremy, Sometimes the best "enclosure" is a locked room. Is it possible in this case to wall off the space and provide a locked

[RE-wrenches] WOW Something Gone Very Wrong

2012-03-29 Thread Mark Frye
* Rooftop solar installation sparks fires in Trenton, New Jersey* 28.03.2012: According to local news portal NJ.com, a rooftop solar system has triggered several small fires at a recycling center in Trenton, New Jersey. The article reports that "a major malfunction in the rooftop solar pane

Re: [RE-wrenches] Grid tied PV to subpanel on detached garage?

2012-04-11 Thread Mark Frye
1 - What is the AC output rating of the PV inverter? 2 - What is the size of the feeder conductors? 3 - Does the sub panel at the garage have a main breaker of it's own? 4 - Does your AHJ or utility require anAC disconnect or not? Mark Frye Berkeley Solar Electric Systems On 4/11/2012 7:

Re: [RE-wrenches] Grid tied PV to subpanel on detached garage?

2012-04-11 Thread Mark Frye
Also, Was a ground conductor run with the feeder? Mark Frye On 4/11/2012 7:09 AM, Aladdin Solar wrote: Wrenches: There's probably an obvious answer but please help me think this through. Here's the situation--comes up all the time: The PV array and grid-tied inverter will be lo

Re: [RE-wrenches] Grid tied PV to subpanel on detached garage?

2012-04-11 Thread Mark Frye
Not necessarily. NEC 2008, 250.32 (B), Exception allows you to use the neutral conductor for existing structure so long as several requirements are met. Check it out. On 4/11/2012 8:41 AM, Aladdin Solar wrote: I meant the question largely to be a generic one but I can give you an example: Bur

[RE-wrenches] Washington made

2012-04-18 Thread Mark Dickson
-inverter would be a plus. Are there any others that I should be looking into? Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re

Re: [RE-wrenches] Washington made

2012-04-18 Thread Mark Dickson
I should have mentioned battery-less grid tied. Thanks! Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. _ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jonathan Hill Sent

[RE-wrenches] cogeneration

2012-05-23 Thread Mark Dickson
Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. Mark Dickson, Certified Solar PV Installer _ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Dorsett Sent: Wednesday, May 23, 2

Re: [RE-wrenches] sub-panel supply-side tap

2012-06-05 Thread Mark Frye
look at the size of the feeder breaker and the pv breaker together to insure that the feeder has sufficient ampapacity per 690.49. Mark Frye On 6/5/2012 3:44 PM, Kirk Herander wrote: Hello, Ideally I'd like to make a supply-side tap on a feeder to a sub-panel. And I mean tapping the fee

Re: [RE-wrenches] Solar Attic Fans

2012-06-08 Thread Mark Byington
rmostat so they only run when necessary. Sorry I don't know the brand name, but we buy them at Home Depot, and they seem to be well built, fairly quiet, and reliable. - Mark Byington Cobalt Power Systems, Inc. (C) 650-714-8150 <mailto:ma...@cobaltpower.com> ma.

[RE-wrenches] Grounding - Exposed Metal Part

2012-07-25 Thread Mark Frye
ded, but I can't find references in the Code to support this. Mark Frye Berkeley Solar Electric Systems ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/opti

Re: [RE-wrenches] adjustable cordless impact drivers

2012-08-08 Thread Mark Westbrock
Hi Jay, We use a Makita BFL300F "nut runner". They are expensive and hard to find, but a great tool for torquing down top clamps. It is nice and long for reaching over modules. We got ours from EF Bailey. Cheers, Mark Mark Westbrock Las Cruces Branch Manager NABCEP Certifie

Re: [RE-wrenches] Unirac SolarMount rail caps

2012-08-13 Thread Mark Richardson
We had to find end caps for a ground mount that was used as part of an environmental learning center. I was able to get vinyl end caps that worked online from caplugs (http://www.caplugs.com/). A little silicone to seal the deal... [Description: Description: Description: NYLElogo] Mark

Re: [RE-wrenches] Unirac SolarMount rail caps

2012-08-13 Thread Mark Richardson
Dana, We were looking for a square cap, but I think I remember some rectangular ones? Their site isn't very navigable, so maybe a call to C.S.? [Description: Description: Description: NYLElogo] Mark Richardson mrichard...@newyorklightenergy.com<mailto:mrichard...@newyorklightenergy.com>

Re: [RE-wrenches] Best practices for comp shingle flashing?

2012-08-16 Thread Mark Dickson
Check out Sunmodo. We feel they are very well designed and can be ordered with 2, 3 5 and 7" standoffs. BTW, their solution for metal roofs are the best we have found. Unfortunately made in China though. . . Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T

Re: [RE-wrenches] Ballasted Roof Racking Recommendations?

2012-08-28 Thread Mark Richardson
Ryan, Panel Claw has a new product that mounts at 15 or 20 deg. but we have not used it yet. We do use the Grizzly Bear product, though and are very happy with it. I highly recommend it if you can utilize a 10 - 12 deg. tilt angle. [Description: NYLE LOGO SMALL] Mark Richardson Production

[RE-wrenches] Short Circuit Cell Damage

2012-09-17 Thread Mark Frye
thoughts? Mark Frye Berkeley Solar Electric Systems ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive:

Re: [RE-wrenches] How do we wrenches provide pertinent advice? (was120% rule applying to conductors)

2012-10-01 Thread Mark Frye
rs of that authority. So it all comes downs to anyone can do anything if they can get the AHJ to sign off on it. Mark. On 10/1/2012 6:24 AM, Drake wrote: From 90.4 "By special permission, the authority having jurisdiction may waive specific requirements in this Code or permit alternative me

Re: [RE-wrenches] Utility disconnect

2012-10-03 Thread Mark Richardson
/96f0fec0b45a3c6485257688006a701a/dcf68efca391ad6085257687006f396b/$FILE/Modified%20SIR%20-%20April%202012%20-%20Draft%20CL.pdf) Unfortunately, this only applies to New York State. Each state and possibly each utility may have its own requirements. Good Luck... Mark Richardson mrichard...@newyorklighte

[RE-wrenches] Was, Old School 12V Independent System? Now, controller tests

2012-10-11 Thread Mark Dickson
like some ideas on what and how to test both the C40 and Whisper controller to make sure they were not causing the overcharging. Any ideas on what tests to perform? Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. Mark Dickson, Certified Solar PV

Re: [RE-wrenches] EMT in attic

2012-11-09 Thread Mark Frye
find materials with listing for the purpose but never got to the bottom if it. I have always had a problem when I saw thin wall AL flex being used with twist-in-insert type fittings. Mark Frye On 11/9/2012 5:44 AM, Dave Click wrote: Nick, what the AHJ is telling you may actually be in

[RE-wrenches] Sanyo Power Warranty

2012-12-06 Thread Mark Byington
By the way, Sanyo power output warranties are for 20 years, not 25. _ Mark Byington Cobalt Power Systems, Inc. C 650-714-8150 ma...@cobaltpower.com ___ List sponsored by Home Power magazine List Address: RE-wrenches

Re: [RE-wrenches] Pilot Hole Template

2012-12-13 Thread Mark Dickson
decking material is substantial as well as anchored well to the blue board. I have not used them yet, but will be putting up 20kW next month and will report back. That being said, anybody else have experience to report with them? Best regards, Mark Dickson, NABCEP Certified Solar PV

[RE-wrenches] GEC for Micro-Inverters and ACPV Modules

2013-01-14 Thread Mark Frye
therefore by extension does not/can not had a GEC in the system. Exeltech (integrated micro-inverter aka. ACPV) does not seem to have a lug on its chasis. Has the industry pretty much moved to not requiring a GEC for these devices and if so, how are the AHJ taking it? Thanks, Mark Frye Berkeley

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