FIRST SOLAR
First Solar Series 6 CuRe Modules | USER GUIDE
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FIRST SOLAR, INC. | MPD-00600-06-C REV 1.0
Table 2: Temperature Characteristics
TEMPERATURE CHARACTERISTICS
Module Operating Temperature Range
(°C)
-40 to +85
Temperature Coefficient of P
MAX
T
k
(P
MAX
)
-0.28%/°C (Temperature Range: 25°C to 75°C)
Temperature Coefficient of V
OC
T
k
(V
OC
)
-0.24%/°C
Temperature Coefficient of I
SC
T
k
(I
SC
)
+0.04%/°C
4.2
SYSTEM DERATING FACTORS
Under normal operation, a PV module may experience conditions that produce higher current and/or
voltage than reported at STC. Accordingly, the values of Isc and Voc listed for STC should be multiplied by a
factor of 1.25 when determining component voltage ratings, conductor current ratings, and size of controls
connected to the PV output. For UL installations, an additional 1.25 safety factor for short circuit current
may be applicable, reference the National Electric Code (NEC) Article 690 for further details. Specific site
conditions and local electric code requirements must be used for determining the maximum system
voltage.
When calculating module Voc at 125 mW/cm
2
, AM1.5 spectrum, and cell temperature of -10°C,
multiply the specific model type STC listed Voc value by a factor of 1.109. When calculating module Isc
at 125 mW/cm
2
, AM1.5 spectrum, and cell temperature of 75°C, multiply the specific model type STC
listed Isc value by a factor of 1.275.
