Win Win Precision Technology Co Ltd WST-540MGXB-E2

Mono-c-Si

540 W Pmax

49.51 V Voc

13.85 A Isc

41.32 V Vmp

13.07 A Imp

21.1 % eff.

0.7876 FF

77 cells

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

IV Curves at 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 · All data sources

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	540.052	W
PTC Power	PTC	504.5	W
Open-circuit voltage	V_oc_ref	49.51	V
Short-circuit current	I_sc_ref	13.85	A
Max-power voltage	V_mp_ref	41.32	V
Max-power current	I_mp_ref	13.07	A
Fill factor	FF	0.7876	—
Efficiency (STC)	η	21.1	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.008864	A/°C
Voc temperature coefficient	beta_oc	-0.127241	V/°C
Pmax temperature coefficient	gamma_r	-0.314	%/°C
NOCT	T_NOCT	47.1	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.80149	V
Light-generated current (ref)	I_L_ref	13.86189	A
Saturation current (ref)	I_o_ref	1.58e-11	A
Series resistance	R_s	0.19591	Ω
Shunt resistance (ref)	R_sh_ref	228.177	Ω
Cells in series	N_s	77	—
CEC Adjust factor	Adjust	6.5632	%

Actions

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

Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 77

Module area 2.56 m²

NOCT 47.1 °C

Temp. coefficient of Pmax -0.314 %/°C

Temp. coefficient of Voc -0.257 %/°C

Temp. coefficient of Isc 0.064 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

Measured Data

No measured data yet for this module.