Suntech Power STP270-20/Wem

Multi-c-Si

270.259 W Pmax

37.9 V Voc

9.15 A Isc

31.1 V Vmp

8.69 A Imp

16.61 % eff.

0.7793 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	270.259	W
PTC Power	PTC	246.8	W
Open-circuit voltage	V_oc_ref	37.9	V
Short-circuit current	I_sc_ref	9.15	A
Max-power voltage	V_mp_ref	31.1	V
Max-power current	I_mp_ref	8.69	A
Fill factor	FF	0.7793	—
Efficiency (STC)	η	16.61	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005545	A/°C
Voc temperature coefficient	beta_oc	-0.129277	V/°C
Pmax temperature coefficient	gamma_r	-0.4457	%/°C
NOCT	T_NOCT	43.8	°C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.59973	V
Light-generated current (ref)	I_L_ref	9.24694	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.23782	Ω
Shunt resistance (ref)	R_sh_ref	404.067	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	8.9495	%

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Module Specifications

Technology Multi-c-Si

Bifacial No

BIPV No

Cells in series 60

Module area 1.627 m²

Dimensions 1.64 × 0.992 m

NOCT 43.8 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr

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