Re: [RE-wrenches] module / panel

2011-02-08 Thread Joel Davidson
Cells? Modules? Bell Labs use to call them solar batteries. Call them what you will, but please buy and use them. Nomenclature from micro to macro: Cell > Module > Panel > Sub-array > Array > Power Field. >From Solar Photovoltaic Applications Seminar: Design, Installation and >Operation of Sma

Re: [RE-wrenches] questions about solar charging 72v UPS

2011-02-08 Thread Mick Abraham
Hi, Ron~ The Midnite Classic PV controller shows 72 volt nominal as one of the battery choices on its menu screen. That's about the only option I know of. Even though the HV controller from Apollo can accept a similar range of PV input voltage I think that unit stops at a 48v battery--maybe becaus

[RE-wrenches] questions about solar charging 72v UPS

2011-02-08 Thread Ron Young
Hi All, I recently acquired some UPS units that are a high end portable units (GE GT3000). They are nearly new and I would like to rig them up as a standalone emergency back-up power source with a solar (or wind) charging option. These units have sine wave output and are a double conversion typ

Re: [RE-wrenches] module / panel

2011-02-08 Thread Maverick Brown [Maverick Solar]
I think it is a tough battle getting that straight. If there is one of them, it is a Module. If there is more than one, then it is a Panel. All of them together is an Array. Most customers would like to think: panel versus panels or module versus modules. There are a very few other English w

Re: [RE-wrenches] module / panel

2011-02-08 Thread David Brearley
It tells me their marketing people have never read the NEC‹no big surprise there‹and maybe they are new to the PV industry. But the term PV panel is also used so ubiquitously in place of the term PV module‹both in common parlance and in the industry‹that it¹s probably going to supersede the terms

Re: [RE-wrenches] module / panel

2011-02-08 Thread boB Gudgel
On 2/8/2011 3:40 PM, David Brearley wrote: However, the term "panel" does appear in the NEC in the context of Article 690 "Solar Photovoltaic Systems." (You'll have to submit a proposal to the Code Making Panel to change the name of the Article, Michael.) Panel is defined a "collection of modules

Re: [RE-wrenches] module / panel

2011-02-08 Thread David Brearley
However, the term "panel" does appear in the NEC in the context of Article 690 "Solar Photovoltaic Systems." (You'll have to submit a proposal to the Code Making Panel to change the name of the Article, Michael.) Panel is defined a "collection of modules mechanically fastened together, wired and de

Re: [RE-wrenches] module / panel

2011-02-08 Thread Michael Welch
FYI, gang (and for what it is worth), Home Power magazine settled on the following long ago, and it seems consistent with other uses: A panel can be used to refer to something that captures heat energy, but does not use the photovoltaic effect. (Like SHW panel, but even SHW "collector" is what

Re: [RE-wrenches] module / panel

2011-02-08 Thread jason pozner
Hey Benn Although we often hear the term module or panel used interchangeably, NEC defines it in 690.2 as you wrote. A module is the individual unit, a panel is a "collection of modules mechanically fastened together, wired, and designed to provide a field-installable unit." The array is the whol

Re: [RE-wrenches] module / panel

2011-02-08 Thread benn kilburn
Dave, thanks for the reply.What are your thoughts when you see (in various publications and/or websites) solar PV distributers and even "module" manufacturers using the term 'panel' to describe a 'module'? benn DayStar Renewable Energy Inc. benn@daystarsolar.ca780-906-7807 HAVE A SUNNY DAY

Re: [RE-wrenches] module / panel

2011-02-08 Thread David Brearley
People in and out of the industry misuse the term PV panel all the time. The NEC is pretty clear that the basic building block for a PV system is a module, the complete unit. Assemble some of these together & now you have a panel. (This is less common now that we have 250 watt modules and not 50 wa

[RE-wrenches] module / panel

2011-02-08 Thread benn kilburn
Wrenchers, Which term do you to describe a single framed unit with either a j-box or two wire leads on the back, module or panel? Which term do you believe to be correct and why? My interpretation is that a single framed unit is a module. Any number of modules attached to a single detached 'ra

Re: [RE-wrenches] NABCEP marketing

2011-02-08 Thread David Brearley
The lesson here might be: Use the right tool for the job. NABCEP probably limits battery-based system questions to 5% of its test questions these days. The test reflects the market. You can totally pass the test without battery-based system knowledge; it helps if you have it, of course, but most P

Re: [RE-wrenches] NABCEP marketing

2011-02-08 Thread holtek
My electrician was out of pocket, so I hired a master electrician with NABCEP citification from a highly reputable company to complete a battery based system for me with the expectation that he would: 1) verify that my initial design would be to code and within proper operating parameters 2) c

Re: [RE-wrenches] NABCEP marketing

2011-02-08 Thread Dana
The questions that are presented on the Nabcep “Problem” solving are short on realistic info and designed to really be multiple guess. Does this really qualify folks for the real world or just real guessing. Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970

Re: [RE-wrenches] NABCEP marketing

2011-02-08 Thread August Goers
Hi All - Good discussion indeed and always controversial with differing opinions. I am dual-NABCEP certified for PV and thermal and I'm happy that I've gone through the process. I don't think that being certified has brought on much additional work for our business and most residential customers d

Re: [RE-wrenches] outback mate question

2011-02-08 Thread Mick Abraham
Call Sandra Herrera or one of the other Outback techies, Jay. If I remember correctly, the Mate display shifts to Drop when the Mate detects the presence of Generator AC...or it's some other random and totally non-logical--but harmless--behavior. Maybe the newer versions don't do that. Jolliness,

Re: [RE-wrenches] outback mate question

2011-02-08 Thread Wayne Irwin
Jay, I have seen the same problem and like Kent, I also reset the Mate to factory defaults and reprogrammed all the AGS settings for the customer. Also no problems since. I would also recommend sending in the the mate for a free software up grade. Wayne Irwin Director of Engineering Pure E

Re: [RE-wrenches] RE-wrenches Digest, Vol 4, Issue 53

2011-02-08 Thread josh
Sent from my BlackBerry® smartphone on the Element Mobile Network. -Original Message- From: re-wrenches-requ...@lists.re-wrenches.org Sender: re-wrenches-boun...@lists.re-wrenches.org Date: Mon, 07 Feb 2011 19:56:49 To: Reply-To: re-wrenches@lists.re-wrenches.org Subject: RE-wrenches Di