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TITLE:
IEC INSTALLATION INSTRUCTION
MANUAL FOR THE CRYSTALLINE
SOLAR PHOTOVOLTAIC MODULE
AUTHOR(S):
Bypina Veerraju Chaudary, Yang Xiaowu
6. SITE SELECTION
In most applications, CNPV SPV Modules should be installed in a location where they will receive maximum
sunlight throughout the year. In the Northern Hemisphere, the Module should typically face south, and in the
Southern Hemisphere, the Modules should typically face north. Modules facing 30 degrees away from true South (or
North) will lose approximately 10 to 15 per cent of their power output. If the Module faces 60 degrees away from
true South (or North), the power loss will be 20 to 30 per cent.
When choosing a site, avoid trees, buildings or obstructions, which could cast shadows on the solar photovoltaic
Modules especially during the winter months when the arc of the sun is lowest over the horizon. Shading causes loss
of output, even though the factory fitted bypass diodes of the SPV Module will minimize any such loss.
Do not install the SPV Module near naked flame or flammable materials.
Do not install the SPV Module in a location where it would be immersed in water or continually exposed to water
from a sprinkler or fountain etc.
7. MODULE TILT ANGLE
CNPV SPV Modules connected in series should be installed at same orientation and angle. Different orientation or
angle may cause loss of output power due to difference of amount of sunlight exposed to the Module.
CNPV SPV Modules produce the most power when they are pointed directly at the sun. For installations where the
SPV Modules are attached to a permanent structure, the SPV Modules should be tilted for optimum winter
performance. As a rule, if the system power production is adequate in winter, it will be satisfactory during the rest of
the year. The Module tilt angle is measured between the solar Modules and the ground (Figure 1). Optimal tilting of
SPV Module is almost the same as the latitude of installation location.
SUNLIGHT
Shengli Industry Park, Dongying City, Shandong Province 257000, PRC
http//www.cnpv-power.com
HORIZONTAL
Figure 1 SPV Module Tilt Angle
CNPV Dongying Solar Power Company Limited,
E-mail:
TECHNICAL SPECIFICATION
SPEC. NO.:
REVISION:
EFFECTIVE DATE:
MODULE

TILT ANGLE

Tel: +86-546-7795555, Fax: +86-546-7795777
CNPV-PS-M-S0010-IEC
J
July 2012
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