First Solar Inc. FS-490A

Thin Film

90 W Pmax

85.5 V Voc

1.53 A Isc

66.5 V Vmp

1.36 A Imp

12.56 % eff.

0.6914 FF

216 cells

Same test data as FS-490. 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	90.44	W
PTC Power	PTC	84.9	W
Open-circuit voltage	V_oc_ref	85.5	V
Short-circuit current	I_sc_ref	1.53	A
Max-power voltage	V_mp_ref	66.5	V
Max-power current	I_mp_ref	1.36	A
Fill factor	FF	0.6914	—
Efficiency (STC)	η	12.56	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.000912	A/°C
Voc temperature coefficient	beta_oc	-0.22478	V/°C
Pmax temperature coefficient	gamma_r	-0.2635	%/°C
NOCT	T_NOCT	44.6	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	2.92388	V
Light-generated current (ref)	I_L_ref	1.54804	A
Saturation current (ref)	I_o_ref	2.82e-13	A
Series resistance	R_s	7.37792	Ω
Shunt resistance (ref)	R_sh_ref	625.862	Ω
Cells in series	N_s	216	—
CEC Adjust factor	Adjust	-10.1521	%

Additional Model Sources

Source	Model type	Fit quality	Citation
CEC module list (via SAM library) Default	CEC / De Soto single-diode	—	https://www.energy.ca.gov/media/2367
Sandia PVsyst single-diode fit	PVsyst single-diode	NMBE Pmp-14.8437	Sandia National Laboratories — PVsyst single-diode parameter translation. See data/pvsyst_params.README.md. https://pvpmc.sandia.gov/

Actions

Open in PV Explorer Generate PAN File Datasheet not on file CEC Source Data

Module Specifications

Technology Thin Film

Bifacial No

BIPV No

Cells in series 216

Module area 0.72 m²

Dimensions 1.2 × 0.6 m

NOCT 44.6 °C

Temp. coefficient of Pmax -0.264 %/°C

Temp. coefficient of Voc -0.263 %/°C

Temp. coefficient of Isc 0.060 %/°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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