Yingli Energy (China) YL450DF72 1/2

Mono-c-Si Bifacial
450.36 W Pmax
49.8 V Voc
11.42 A Isc
41.7 V Vmp
10.8 A Imp
21.24 % eff.
0.7919 FF
144 cells
IV curves not yet precomputed for this module. Run python manage.py precompute_iv_curves to generate them.
CEC Single-Diode Model Parameters
Parameter Symbol Value Unit
Nameplate (STC)
STC Power STC 450.36 W
PTC Power PTC 423.3 W
Open-circuit voltage V_oc_ref 49.8 V
Short-circuit current I_sc_ref 11.42 A
Max-power voltage V_mp_ref 41.7 V
Max-power current I_mp_ref 10.8 A
Fill factor FF 0.7919
Efficiency (STC) η 21.24 %
Temperature Coefficients
Isc temperature coefficient alpha_sc 0.004568 A/°C
Voc temperature coefficient beta_oc -0.130476 V/°C
Pmax temperature coefficient gamma_r -0.331 %/°C
NOCT T_NOCT 44.0 °C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor a_ref 1.84614 V
Light-generated current (ref) I_L_ref 11.9203 A
Saturation current (ref) I_o_ref A
Series resistance R_s 0.21126 Ω
Shunt resistance (ref) R_sh_ref 68.569 Ω
Cells in series N_s 144
CEC Adjust factor Adjust 9.0403 %
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Module Specifications
Technology Mono-c-Si
Bifacial Yes
BIPV No
Cells in series 144
Module area 2.12 m²
NOCT 44.0 °C
CEC listing date 11/16/2022
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