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Factors Affecting Sun Tie XR Performance
This section describes several factors that will affect the amount of power
that a properly installed and operating Sun Tie XR can produce.
PV Array Factors
PV array ratings PV arrays are rated at ideal factory conditions, such as specified
illumination (1000 W/m
2
), spectrum of the light and specified
temperature (25 °C/77 °F), which seldom reflect real-world installations.
This is called the STC (Standard Test Condition) rating and is the figure
that appears on the PV module nameplate label.
Expected
performance
Because of several unavoidable environmental factors, you can expect
your PV array to produce around 60% to 70% of its peak STC-rated
output for a properly designed and installed PV system.
Figure 3-7 Rain Shield and screws
Rain Shield
Replace screws
(two on each side)