Photovoltaic Cell -- Thin squares, discs, or films of semiconductor material
that generate voltage and current when exposed to sunlight.
Module -- Photovoltaic cells wired together and laminated between a clear
http://www.ping.fm/zIsr2 superstrate (glazing) and encapsulating substrate.
Array -- One or more modules with mounting hardware and wired together at a
specific voltage.
Charge Controller -- Power conditioning equipment to regulate battery
voltage.
Battery Storage -- A medium that stores direct current (DC) electrical
energy.
Inverter -- An electrical device that changes direct current to alternating
current (AC) to operate loads that require alternating current.
DC Loads -- Appliances, motors and equipment powered by direct current.
AC Loads -- Appliances, motors and equipment powered by alternating
current.
6. How do the panels work? A solar
panel (module) is made up a number of solar cells. Solar cells are generally
made from thin wafers of silicon, the second most abundant substance on earth,
the same substance that makes up sand. To make the wafers, the silicon is heated
to extreme temperatures, and chemicals, usually boron and phosphorous, are
added. The addition of these chemicals makes the silicon atoms unstable (their
electrons less tightly held). When photons of sunlight hit a solar panel, some
are absorbed into the solar cells, where their energy knocks loose some of the
modified silicon's electrons. These loose electrons are forced by electric
fields in the PV panel to flow along wires that have been placed within the
cells. This flow of electrons through the wires is electricity, and will provide
power for whatever load we attach (a calculator, a light bulb, a satellite,
etc.) Because solar cells are modular, a system's size can be increased
(or decreased) over time, according to need. learn more http://www.ping.fm/zIsr2
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