Sonali Energees USA LLC SS-320

Multi-c-Si

320 W Pmax

46.5 V Voc

9.15 A Isc

37.7 V Vmp

8.5 A Imp

16.69 % eff.

0.7532 FF

72 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	320.45	W
PTC Power	PTC	288.7	W
Open-circuit voltage	V_oc_ref	46.5	V
Short-circuit current	I_sc_ref	9.15	A
Max-power voltage	V_mp_ref	37.7	V
Max-power current	I_mp_ref	8.5	A
Fill factor	FF	0.7532	—
Efficiency (STC)	η	16.69	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.006222	A/°C
Voc temperature coefficient	beta_oc	-0.17205	V/°C
Pmax temperature coefficient	gamma_r	-0.453	%/°C
NOCT	T_NOCT	46.1	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	2.00255	V
Light-generated current (ref)	I_L_ref	9.16431	A
Saturation current (ref)	I_o_ref	7.37e-10	A
Series resistance	R_s	0.34626	Ω
Shunt resistance (ref)	R_sh_ref	221.338	Ω
Cells in series	N_s	72	—
CEC Adjust factor	Adjust	4.1198	%

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Module Specifications

Technology Multi-c-Si

Bifacial No

BIPV No

Cells in series 72

Module area 1.92 m²

NOCT 46.1 °C

Temp. coefficient of Pmax -0.453 %/°C

Temp. coefficient of Voc -0.370 %/°C

Temp. coefficient of Isc 0.068 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 16 Nov 2022 list

Measured Data

No measured data yet for this module.

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