Wuxi Suntech Power Co. Ltd STP255-20/Wfw

Multi-c-Si

255.024 W Pmax

37.6 V Voc

8.86 A Isc

30.8 V Vmp

8.28 A Imp

15.74 % eff.

0.7655 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	255.024	W
PTC Power	PTC	233.1	W
Open-circuit voltage	V_oc_ref	37.6	V
Short-circuit current	I_sc_ref	8.86	A
Max-power voltage	V_mp_ref	30.8	V
Max-power current	I_mp_ref	8.28	A
Fill factor	FF	0.7655	—
Efficiency (STC)	η	15.74	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004705	A/°C
Voc temperature coefficient	beta_oc	-0.120358	V/°C
Pmax temperature coefficient	gamma_r	-0.435	%/°C
NOCT	T_NOCT	44.0	°C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.55832	V
Light-generated current (ref)	I_L_ref	8.87029	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.26108	Ω
Shunt resistance (ref)	R_sh_ref	224.715	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	12.1563	%

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Module Specifications

Technology Multi-c-Si

Bifacial No

BIPV No

Cells in series 60

Module area 1.62 m²

NOCT 44.0 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr