<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<STYLE>.hmmessage P {
PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-TOP: 0px
}
BODY.hmmessage {
FONT-SIZE: 10pt; FONT-FAMILY: Tahoma
}
</STYLE>
<META content="MSHTML 6.00.2800.1649" name=GENERATOR></HEAD>
<BODY class=hmmessage bgColor=#ffffff>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Hi Joel,</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Interesting applications.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>I'm not trying to be pedantic but (in the '93
application) did you mean the module was seeing the flame and keeping the
_gas valve_ open? Do I understand correctly that it was capable of keeping the
electromagnet energized on only pilot flame? Essentially substituting for a
thermocouple or thermopile?</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Not exactly an ideal cold temperature
application.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>TIA,</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Bill Loesch<BR>Solar 1 - Saint Louis Solar<BR>314 631
1094</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=joel.davidson@sbcglobal.net
href="mailto:joel.davidson@sbcglobal.net">Joel Davidson</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, February 08, 2011 10:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [RE-wrenches] module /
panel</DIV>
<DIV><FONT face=Arial></FONT><BR></DIV>
<DIV><FONT face=Arial>Cells? Modules? Bell Labs use to call them solar
batteries. Call them what you will, but please buy and use them.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Nomenclature from micro to macro: Cell > Module >
Panel > Sub-array > Array > Power Field.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>From Solar Photovoltaic Applications Seminar: Design,
Installation and Operation of Small, Stand-Alone Photovoltaic Systems, July
1980, DOE/CS/32522-T1 (with thanks to Jim Fortenberry for his copy when the
DOE shut down the PV Division of the Jet Propulsion Laboratory in
1984):</FONT></DIV>
<DIV><FONT face=Arial>A PV array is composed of many subarrays, panels,
modules, and cells in various series, parallel, star, and delta combinations.
Individual cells are wired together and mounted to produce a
module.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>From UL 1703:</FONT></DIV>
<DIV><FONT face=Arial>2. Glossary</FONT></DIV>
<DIV><FONT face=Arial>2.13 Module (Flat-Plate) - The smallest environmentally
protected, essentially planar assembly of solar cells and ancillary parts,
such as interconnects and terminals, intended to generate dc power under
unconcentrated sunlight. The structural (load-carrying) member of a module can
either be the top layer (superstrate), or the back layer (substrate), in
which:</FONT></DIV>
<DIV><FONT face=Arial>a) The superstrate is the transparent material forming
the to (light-facing) outer surface of the module. If load-carrying, this
constitutes a structural superstrate.</FONT></DIV>
<DIV><FONT face=Arial>b) The substrate is the material forming the back out
surface of a module. If load-carrying, this constitutes a structural
substrate.</FONT></DIV>
<DIV><FONT face=Arial>2.15 Panel (Flat-Plate) - A collection of modules
mechanically fastened together, wired, and designed to provide a
field-installable unit.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Cell/Module/Panel factoids:</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>There are such things as non-solar PV
cells and modules. In 1983, a UCLA researcher used a silicon solar
cell to measure the contractions (beats) of a heart cell. The heart cell
was viewed on a television screen that was connected to a
microscope. The solar cell was taped to the TV screen. When the cell
contracted, the photons emitted by the TV screen changed causing the solar
cell to generate current that was then recorded.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>In 1993, while at Solec International, I had a
customer who used a small custom solar module mounted near the combustion
chamber of a natural gas heater. The solar module used the photons
emitted by the combusted gas to power the gas flow regulator.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>In 1994, while at Solar Integrated Technologies, I got
the first UL listing for a photovoltaic panel (not module).</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Joel Davidson</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"><FONT
face=Arial></FONT> </BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>