Wuxi Suntech Power Co. Ltd STP280S-20/Wfm

Mono-c-Si

280.088 W Pmax

38.2 V Voc

9.4 A Isc

31.4 V Vmp

8.92 A Imp

17.29 % eff.

0.78 FF

60 cells

IV & PV Curves at STC (1000 W/m², 25 °C)

IV Curves — Multiple Conditions

Irradiance sweep at 25 °C

Temperature sweep at 1000 W/m²

Single-Diode Model Parameters

Source: California Energy Commission module list · retrieved via SAM library · energy.ca.gov

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	280.088	W
PTC Power	PTC	256.6	W
Open-circuit voltage	V_oc_ref	38.2	V
Short-circuit current	I_sc_ref	9.4	A
Max-power voltage	V_mp_ref	31.4	V
Max-power current	I_mp_ref	8.92	A
Fill factor	FF	0.78	—
Efficiency (STC)	η	17.29	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004615	A/°C
Voc temperature coefficient	beta_oc	-0.125487	V/°C
Pmax temperature coefficient	gamma_r	-0.4428	%/°C
NOCT	T_NOCT	43.6	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.58955	V
Light-generated current (ref)	I_L_ref	9.50072	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.23201	Ω
Shunt resistance (ref)	R_sh_ref	327.619	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	10.2122	%

Actions

Open in IV Curve Explorer Generate PAN File Datasheet not on file CEC Source Data

Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 60

Module area 1.62 m²

NOCT 43.6 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr

Measured Data

No measured data yet for this module.