Vietnam Sunergy Joint Stock Company VSUN555N-144BMH-DG

Mono-c-Si Bifacial

555 W Pmax

50.5 V Voc

14.08 A Isc

41.8 V Vmp

13.28 A Imp

21.52 % eff.

0.7807 FF

72 cells

Same test data as VSUN555N-144BMH. CEC lists each frame, color and backsheet version as its own listing.

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	555.104	W
PTC Power	PTC	522.0	W
Open-circuit voltage	V_oc_ref	50.5	V
Short-circuit current	I_sc_ref	14.08	A
Max-power voltage	V_mp_ref	41.8	V
Max-power current	I_mp_ref	13.28	A
Fill factor	FF	0.7807	—
Efficiency (STC)	η	21.52	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005012	A/°C
Voc temperature coefficient	beta_oc	-0.122867	V/°C
Pmax temperature coefficient	gamma_r	-0.3057	%/°C
NOCT	T_NOCT	45.7	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.75336	V
Light-generated current (ref)	I_L_ref	14.09667	A
Saturation current (ref)	I_o_ref	4.29e-12	A
Series resistance	R_s	0.23942	Ω
Shunt resistance (ref)	R_sh_ref	202.215	Ω
Cells in series	N_s	72	—
CEC Adjust factor	Adjust	1.4558	%

Actions

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Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 72

Module area 2.58 m²

NOCT 45.7 °C

Temp. coefficient of Pmax -0.306 %/°C

Temp. coefficient of Voc -0.243 %/°C

Temp. coefficient of Isc 0.036 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

Measured Data

No measured data yet for this module.

Same Test Data

2 listings with identical nameplate test data, one per frame, color or backsheet version.

Similar Modules

Other manufacturers, same technology and cell count, power within 3 %.