Wuxi Suntech Power Co. Ltd STP305S-A20/Wfb

Mono-c-Si

305.235 W Pmax

39.9 V Voc

9.82 A Isc

32.3 V Vmp

9.45 A Imp

18.73 % eff.

0.779 FF

60 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	305.235	W
PTC Power	PTC	282.0	W
Open-circuit voltage	V_oc_ref	39.9	V
Short-circuit current	I_sc_ref	9.82	A
Max-power voltage	V_mp_ref	32.3	V
Max-power current	I_mp_ref	9.45	A
Fill factor	FF	0.779	—
Efficiency (STC)	η	18.73	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004223	A/°C
Voc temperature coefficient	beta_oc	-0.106134	V/°C
Pmax temperature coefficient	gamma_r	-0.354	%/°C
NOCT	T_NOCT	46.6	°C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.47027	V
Light-generated current (ref)	I_L_ref	10.0272	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.33055	Ω
Shunt resistance (ref)	R_sh_ref	336.096	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	6.1737	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 60

Module area 1.63 m²

NOCT 46.6 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr