http://www.seners.gr/library/pv/NAPS_Solar_Modules.pdf

Naps range of
standard solar
modules
Naps range of high efficiency solar (photovoltaic, PV)
modules combine power, efficiency and quality
construction in highly dependable solar generators.
These modules are designed for easy installation in a
wide range of applications, including battery charging
(as in most off-grid systems), grid connection via a
suitable inverter and direct drive of solar water
pumps.
Most modules contain 36 silicon solar cells in series:
the optimum module configuration for 12 Volt battery
charging under the most demanding conditions.
Charging of 24 and 48 Volt batteries is easily
achieved by suitable series connection of modules.
The NR61GK module contains 44 cells in series and is
especially designed for use with one of our charge
controllers with dc/dc conversion and current
boosting, such as Genio and MaxPower.
Featuring the highest standards of construction, Naps
modules are able to withstand the harshest environments
and continue to perform efficiently. Properly
installed, these modules have a design life of at least
25 years. Cells are protected from dirt, moisture and
impact by a tempered, low-iron glass front and
laminated using EVA between this glass and a
durable, multi-layered polymer backsheet for
superior moisture resistance.
Naps modules are tested to meet or exceed international
standards, quality and performance requirements.
The modules’ test performance and our years
of experience providing dependable power in
locations throughout the world assure you that Naps
modules can meet your solar power needs today.
Naps modules carry both 10 and 25 year limited
power warranties.
NP series modules use a cell based on a
polycrystalline wafer. Most of the raw silicon material
for these wafers is processed using hydroelectricity,
which results in less carbon dioxide emissions during
manufacturing. Consequently, NP series modules
have a significantly shorter ‘CO2 payback time’ than
most polycrystalline or monocrystalline modules.
NR series modules use silicon ribbon (EFG) cells. The
thin wafer is 'pulled' directly from a bath of molten
silicon instead of the conventional process of making
a large block and then sawing it into thin slices.
Sawing losses of high purity silicon raw material are
avoided and so less energy is used in the manufacturing
of ribbon cells. Both the energy payback time
and ‘CO2 payback time’ are lower than normal when
NR series modules are u