What is PV ?
 The
primary and only essential component of a PV system is an array of modules
or panels that directly converts sunlight into electricity. PV panels
contain cells made of semiconductor material, usually silicon.
Photovoltaic cells are light sensitive and produce an electrical current
in the presence of sunlight.
Depending on the type of
system, other components often include batteries for back-up power and a
device called an inverter that converts solar electricity (DC) to the type
of electricity used in homes and buildings (AC). PV systems are extremely
reliable because they contain no moving parts, do not wear out and have a
lifetime of 20 to 30 years.
Electricity Anywhere Under
the Sun
Line-tied PV
Systems
If your home or business is
already connected to conventional electric lines, a line-tied or grid-tied
PV system can allow you to meet some of your energy needs with a cleaner
source of electricity – the sun. A line-tied PV system also can be used as
an extremely reliable way to generate and store emergency power that might
be needed during utility power outages. Because you will still be
connected to electric utility lines, you have the option of choosing solar
to meet either a portion or all of your electric needs. The solar electric
system will reduce your monthly utility bill and many utilities will even
give you retail credit for excess energy you feed back into the power
grid. This happens by spinning your electric meter backward.
Remote PV
Systems
A remote PV system can allow
you to live or work in a remote or difficult-to-access location while
still enjoying reliable and convenient electricity. Solar electric systems
for Altair Energy provide AC power, the same type of electricity delivered
by utility lines, and can include batteries and an engine generator for
backup power
<< back |
