Silfab Solar Inc. SIL-390BG

Mono-c-Si

390 W Pmax

45.1 V Voc

11.1 A Isc

37.2 V Vmp

10.48 A Imp

20.96 % eff.

0.7788 FF

66 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	389.856	W
PTC Power	PTC	364.0	W
Open-circuit voltage	V_oc_ref	45.1	V
Short-circuit current	I_sc_ref	11.1	A
Max-power voltage	V_mp_ref	37.2	V
Max-power current	I_mp_ref	10.48	A
Fill factor	FF	0.7788	—
Efficiency (STC)	η	20.96	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004884	A/°C
Voc temperature coefficient	beta_oc	-0.118162	V/°C
Pmax temperature coefficient	gamma_r	-0.345	%/°C
NOCT	T_NOCT	45.4	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.66226	V
Light-generated current (ref)	I_L_ref	11.1095	A
Saturation current (ref)	I_o_ref	1.81e-11	A
Series resistance	R_s	0.26425	Ω
Shunt resistance (ref)	R_sh_ref	310.181	Ω
Cells in series	N_s	66	—
CEC Adjust factor	Adjust	7.8268	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 66

Module area 1.86 m²

NOCT 45.4 °C

Temp. coefficient of Pmax -0.345 %/°C

Temp. coefficient of Voc -0.262 %/°C

Temp. coefficient of Isc 0.044 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 16 Nov 2022 list

Annual degradation 0.5%/yr

Measured Data

No measured data yet for this module.

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