Sonali Energees USA LLC SS-550-144M-W

Mono-c-Si

550 W Pmax

50.2 V Voc

13.82 A Isc

42.4 V Vmp

12.98 A Imp

21.41 % eff.

0.7933 FF

72 cells

Same test data as SS-550-144M-B. 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	550.352	W
PTC Power	PTC	514.8	W
Open-circuit voltage	V_oc_ref	50.2	V
Short-circuit current	I_sc_ref	13.82	A
Max-power voltage	V_mp_ref	42.4	V
Max-power current	I_mp_ref	12.98	A
Fill factor	FF	0.7933	—
Efficiency (STC)	η	21.41	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005666	A/°C
Voc temperature coefficient	beta_oc	-0.137548	V/°C
Pmax temperature coefficient	gamma_r	-0.368	%/°C
NOCT	T_NOCT	43.5	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.91956	V
Light-generated current (ref)	I_L_ref	13.83089	A
Saturation current (ref)	I_o_ref	5.95e-11	A
Series resistance	R_s	0.14076	Ω
Shunt resistance (ref)	R_sh_ref	178.673	Ω
Cells in series	N_s	72	—
CEC Adjust factor	Adjust	11.5756	%

Actions

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 72

Module area 2.57 m²

NOCT 43.5 °C

Temp. coefficient of Pmax -0.368 %/°C

Temp. coefficient of Voc -0.274 %/°C

Temp. coefficient of Isc 0.041 %/°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.

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