[RE-wrenches] module / panel

[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 at daystarsolar.ca780-906-7807 HAVE A SUNNY DAY







Date: Tue, 8 Feb 2011 17:02:32 -0600
From: david.brearley at solarprofessional.com
To: re-wrenches at lists.re-wrenches.org
Subject: Re: [RE-wrenches] module / panel





Message body


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 watt modules.) An array is defined in the NEC as a mechanically integrated unit; I tend to think of an array as all of the modules on site. They added a definition for a subarray in the 2011 NEC; this is an electrical subset of an array. 









On 2/8/11 4:49 PM, "benn kilburn" <benn at daystarsolar.ca> wrote:



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 'rack' is a panel, and a group of panels with the same orientation or mounting location/type is an array.



If you agree with my interpretation, what are your thoughts on the widespread use of the term 'panel' to describe a module.



thanks,

benn



DayStar Renewable Energy Inc. 

benn at daystarsolar.ca

780-906-7807 

HAVE A SUNNY DAY 







       

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