Win Win Precision Technology Co Ltd WST-545MGXB-E2

Mono-c-Si

545 W Pmax

49.64 V Voc

13.93 A Isc

41.46 V Vmp

13.15 A Imp

21.3 % eff.

0.7884 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	545.199	W
PTC Power	PTC	509.3	W
Open-circuit voltage	V_oc_ref	49.64	V
Short-circuit current	I_sc_ref	13.93	A
Max-power voltage	V_mp_ref	41.46	V
Max-power current	I_mp_ref	13.15	A
Fill factor	FF	0.7884	—
Efficiency (STC)	η	21.3	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.008915	A/°C
Voc temperature coefficient	beta_oc	-0.127575	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	1.80661	V
Light-generated current (ref)	I_L_ref	13.94153	A
Saturation current (ref)	I_o_ref	1.6e-11	A
Series resistance	R_s	0.19258	Ω
Shunt resistance (ref)	R_sh_ref	232.762	Ω
Cells in series	N_s	77	—
CEC Adjust factor	Adjust	6.6167	%

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.