Silfab Solar Inc. SIL-425HU

Mono-c-Si

425 W Pmax

49.7 V Voc

10.67 A Isc

41.5 V Vmp

10.23 A Imp

21.66 % eff.

0.8006 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	424.545	W
PTC Power	PTC	399.7	W
Open-circuit voltage	V_oc_ref	49.7	V
Short-circuit current	I_sc_ref	10.67	A
Max-power voltage	V_mp_ref	41.5	V
Max-power current	I_mp_ref	10.23	A
Fill factor	FF	0.8006	—
Efficiency (STC)	η	21.66	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.002241	A/°C
Voc temperature coefficient	beta_oc	-0.119777	V/°C
Pmax temperature coefficient	gamma_r	-0.325	%/°C
NOCT	T_NOCT	44.6	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.74208	V
Light-generated current (ref)	I_L_ref	10.783	A
Saturation current (ref)	I_o_ref	4.35e-12	A
Series resistance	R_s	0.26446	Ω
Shunt resistance (ref)	R_sh_ref	453.66	Ω
Cells in series	N_s	72	—
CEC Adjust factor	Adjust	4.9932	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 72

Module area 1.96 m²

NOCT 44.6 °C

Temp. coefficient of Pmax -0.325 %/°C

Temp. coefficient of Voc -0.241 %/°C

Temp. coefficient of Isc 0.021 %/°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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