Silfab Solar Inc. SLA280M

Mono-c-Si

281 W Pmax

38.7 V Voc

9.43 A Isc

31.7 V Vmp

8.86 A Imp

17.19 % eff.

0.7696 FF

60 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	280.862	W
PTC Power	PTC	253.8	W
Open-circuit voltage	V_oc_ref	38.7	V
Short-circuit current	I_sc_ref	9.43	A
Max-power voltage	V_mp_ref	31.7	V
Max-power current	I_mp_ref	8.86	A
Fill factor	FF	0.7696	—
Efficiency (STC)	η	17.19	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.003961	A/°C
Voc temperature coefficient	beta_oc	-0.107586	V/°C
Pmax temperature coefficient	gamma_r	-0.404	%/°C
NOCT	T_NOCT	47.8	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.52111	V
Light-generated current (ref)	I_L_ref	9.43938	A
Saturation current (ref)	I_o_ref	8.3e-11	A
Series resistance	R_s	0.27189	Ω
Shunt resistance (ref)	R_sh_ref	273.209	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	16.4449	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 60

Module area 1.634 m²

Dimensions 1.65 × 0.99 m

NOCT 47.8 °C

Temp. coefficient of Pmax -0.404 %/°C

Temp. coefficient of Voc -0.278 %/°C

Temp. coefficient of Isc 0.042 %/°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.

Same Test Data

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

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