Re: [RE-wrenches] Heinz 57 off-grid array - What should I do with the solar modules?

2010-05-03 Thread bob
I know it was not the question but on the light dimming, it might need to be controlled / corrected or the new pump is going to really set it off….. What is the inverter? How long is the wire run to the inverter and is it 4/0 cable? A larger bank would probably help if the inverter and cable

Re: [RE-wrenches] Heinz 57 off-grid array - What should I do with the solar modules?

2010-05-03 Thread Dan Fink
Bob, fellow wrenches -- Please keep in mind that old, 12 volt, non-UL PV modules can have an *extremely* positive impact in under-developed parts of the world. I witnessed this first-hand while doing wind power consulting on the remote Caribbean coast of Nicaragua. A few old junker 20-watt

[RE-wrenches] Heinz 57 off-grid array

2010-05-03 Thread Dana
I see several challenges here: ·You sure do not want both pumps on at the same time or total shut down will result. ·The 2HP pump is 24 amps at 120VAC or 12 amps at 230 VAC, either way 2.7KW continuous draw and start up surge at 2-4 times [5.4KW – 10.8KW]that? This will be more

Re: [RE-wrenches] NABCEP competition? ANYONE OUT THERE????

2010-05-03 Thread Blair May
I am frustrated by the lack of response from the folks at NABCEP regarding this type of comment. Is anyone from NABCEP out there? Any thoughts on this??? To bad this wasn't discussed/addressed w/ UL prior to their launching. -Original Message- From:

Re: [RE-wrenches] Heinz 57 off-grid array

2010-05-03 Thread Phil Undercuffler
Whether you rebuild the system using existing equipment or start over again with all new gear, I strongly suggest building a simple relay logic control to prevent both pumps from running at the same time. Toilet flushes, grinder activates just as well pump kicks onthat's a pretty hefty load

Re: [RE-wrenches] Heinz 57 off-grid array - Side discussion about mix-n-match

2010-05-03 Thread Mick Abraham
Hi, Wrenchies~ If code compliance were not an issue, one might connect a Photowatt 47 in parallel with a Golden Genesis 75 to effectively yield a 122 watt unit around 17 volts @ max power...and those two resulting units could then be connected in series with the two Kyocera 120's to create a

Re: [RE-wrenches] looking for Enphase

2010-05-03 Thread Marv Dargatz
Marco, If you don't have success with the list, contact me directly and I'll be glad to help. See ya! Marv 707 763-4784 x7016 Marco Mangelsdorf wrote: As in Enphase 190s, S11 version, with the MC3 connectors. As in about 100 of em. Anyone have any suggested

Re: [RE-wrenches] NABCEP competition? ANYONE OUT THERE????

2010-05-03 Thread Bob-O Schultze
Blair, We're out here and are well aware of UL's toe-tipping into the world of certification. Look for a formal announcement from NABCEP in a few days. In the meantime, two things: First, it's no great wonder that UL made this announcement at the same time the DOE announced that they were

Re: [RE-wrenches] NABCEP competition? ANYONE OUT THERE???

2010-05-03 Thread Peter Parrish
Which show are you referring to, NABCEP or ULU? Peter T. Parrish, Ph.D., President California Solar Engineering, Inc. 820 Cynthia Ave., Los Angeles, CA 90065 CA Lic. 854779, NABCEP Cert. 031806-26 peter.parr...@calsolareng.com Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885

[RE-wrenches] NABCEP competition? ANYONE OUT THERE???

2010-05-03 Thread Dana
Which show are you referring to, NABCEP or ULU? Peter T. Parrish, Ph.D., President Both and our industry in general. Remember we are all the bozos on this bus. Solar is the new Golden Goose read that as Green Goose. This industry is getting folks piling on by the boat load at present and I

[RE-wrenches] Corrugated roofing attachments

2010-05-03 Thread William Miller
Friends: Have any of you had any experience with the Corrubracket (http://www.s-5.com/clamps/index_1032.cfm)? Where did you purchase them? Are there any better methods for attaching to corrugated roofing? Thanks in advance. William Miller Please note new e-mail address and domain:

Re: [RE-wrenches] Corrugated roofing attachments

2010-05-03 Thread Dana
Conergy DC Power Thanks, Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com Responsible Technologies for Responsible People since 1988 From: re-wrenches-boun...@lists.re-wrenches.org

[RE-wrenches] Exterior conduit in corrosive environments

2010-05-03 Thread William Miller
Friends: We are just completing a non-penetrating roof mount in a beach environment. We chose aluminum rigid for our PV feeders. Cost about 1.30 per foot, easy to work with (for real electricians -- you need to have a threader and rigid experience). I recommend it. William Miller

Re: [RE-wrenches] Corrugated roofing attachments

2010-05-03 Thread William Miller
Dana: No experience with them as yet? Wm PS: I tried to purchase from Conergy and DC Power but the paperwork was onerous. I am pursuing other sources. Wm At 10:02 AM 5/3/2010, you wrote: Content-Type: multipart/alternative; boundary==_NextPart_000_00CE_01CAEAB0.163360D0

Re: [RE-wrenches] Corrugated roofing attachments

2010-05-03 Thread benn kilburn
I have no experience with this product, however i sure could have used them for the last project i did with this type of roof. Question: What if the truss is not directly under the 'bump' in the roof? My understanding is that the roof decking alone is not adequate enuf (pull-out strength) to

Re: [RE-wrenches] Corrugated roofing attachments

2010-05-03 Thread Dana
No we have not used them yet and were discussing using the Corrubracket on a couple of projects this AM as you request floated by. Thanks, Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com Responsible

[RE-wrenches] Any experience with Kaneka PV arrays?

2010-05-03 Thread Dan Fink
Esteemed Wrenches; Does anyone here have experience with designing and installing Kaneka thin-film PV arrays? I am seriously considering them for an upcoming multi-site off-grid install at a Northern BC Canada fishing lodge, where everything has to fly in 135 miles by float plane and then

Re: [RE-wrenches] Corrugated roofing attachments

2010-05-03 Thread Glenn Burt
We have been intrigued by the S-5! Offering for work on corrugated roofing jobs, but have not yet used them either. Anyone else? http://www.s-5.com/clamps/index_1032.cfm -Glenn Burt From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On

[RE-wrenches] AEI Solaron Inverters - DC Grounded or Ungrounded

2010-05-03 Thread Matt Lafferty
Wrenches, Can anyone DEFINITIVELY tell me whether the DC systems on AEI Solaron based plants is grounded or ungrounded during operation? Have you tested your theory in the field? What marking requirements do you suggest for the neutrals? Thanks! Matt Lafferty

Re: [RE-wrenches] Any experience with Kaneka PV arrays?

2010-05-03 Thread Matt Lafferty
Hi Dan, Not sure if I qualify as esteemed or not. My experience with Kaneka products is positive all the way around. Haven't used any in the last 4 years. Prior to that, here's my take: Kaneka's fit and finish is superior. (This is QUALITY stuff) Electrical output is reliably over nameplate.

Re: [RE-wrenches] Heinz 57 off-grid array - Side discussion about mix-n-match

2010-05-03 Thread R Ray Walters
All of my this ought to work? experiments in module mixing and matching did work, but always under performed. If the customer wanted to play around with them, put them on a decent rack, and hide the mess from view, it will still provide some usable amps. I wouldn't even waste an MPPT controller

Re: [RE-wrenches] AEI Solaron Inverters - DC Grounded or Ungrounded

2010-05-03 Thread Bill Brooks
Matt, They claim to use a bi-polar array with 600Vdc per pole. All bipolar arrays must be grounded, so they must be grounded. They claim to be grounded through the ac service transformer while operating. They are fundamentally similar to many ungrounded designs. So, it IS grounded during

[RE-wrenches] suggested scary language

2010-05-03 Thread Marco Mangelsdorf
For a high voltage DC junction box? As in touch these wires and die or something similar? Thanks, marco provision_highres_solar_logo2 with C-26351 Marco Mangelsdorf, President 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720 (808) 969-3281, 934-7462 facsimile

[RE-wrenches] Solmetric Suneye 210

2010-05-03 Thread Marco Mangelsdorf
Anyone have a line on a well-priced Solmetric Suneye 210? The cheapest I've found so far comes to a bit under $1,900. Thanks. marco provision_highres_solar_logo2 with C-26351 Marco Mangelsdorf, President 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720 (808) 969-3281, 934-7462 facsimile

[RE-wrenches] Any experience with Kaneka PV arrays?

2010-05-03 Thread Bob Clark
Dan: Esteemed or otherwise, we installed 6 Kaneka 60W modules on a solar stock watering system 3 years ago. The rancher is quite pleased with their performance. We are preparing to install 8 more of them on another solar stock watering system within the next month. Both arrays are in

Re: [RE-wrenches] Solmetric Suneye 210

2010-05-03 Thread R Ray Walters
I still think the venerable Solar Pathfinder coupled with their Pathfinder Assistant software is just as good or better, for much less money. I did some very detailed shading analysis with the Pathfinder (as you may recall) You do have to provide your own digital camera though. R. Walters

Re: [RE-wrenches] suggested scary language

2010-05-03 Thread Dan Fink
Marco -- I train fire departments around the country in PV safety, and I also train PV installers in how to train their local fire departments. As a firefighter myself, the signage I like to see (and should meet NEC code, and is widely available) is: DC Disconnect Warning: Electric Shock