Wuxi Suntech Power Co. Ltd STP425S-B72/Vnh

Mono-c-Si

425.488 W Pmax

49.3 V Voc

11.03 A Isc

40.6 V Vmp

10.48 A Imp

19.52 % eff.

0.7825 FF

72 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	425.488	W
PTC Power	PTC	396.7	W
Open-circuit voltage	V_oc_ref	49.3	V
Short-circuit current	I_sc_ref	11.03	A
Max-power voltage	V_mp_ref	40.6	V
Max-power current	I_mp_ref	10.48	A
Fill factor	FF	0.7825	—
Efficiency (STC)	η	19.52	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.00739	A/°C
Voc temperature coefficient	beta_oc	-0.139026	V/°C
Pmax temperature coefficient	gamma_r	-0.375	%/°C
NOCT	T_NOCT	43.2	°C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.91991	V
Light-generated current (ref)	I_L_ref	11.0313	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.27531	Ω
Shunt resistance (ref)	R_sh_ref	2334.41	Ω
Cells in series	N_s	72	—
CEC Adjust factor	Adjust	12.3778	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 72

Module area 2.18 m²

NOCT 43.2 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr