First Solar Inc. FS-390-Plus

Thin Film

90 W Pmax

56.9 V Voc

2.27 A Isc

44.4 V Vmp

2.03 A Imp

12.52 % eff.

0.6978 FF

146 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	90.132	W
PTC Power	PTC	85.2	W
Open-circuit voltage	V_oc_ref	56.9	V
Short-circuit current	I_sc_ref	2.27	A
Max-power voltage	V_mp_ref	44.4	V
Max-power current	I_mp_ref	2.03	A
Fill factor	FF	0.6978	—
Efficiency (STC)	η	12.52	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.000888	A/°C
Voc temperature coefficient	beta_oc	-0.142193	V/°C
Pmax temperature coefficient	gamma_r	-0.2492	%/°C
NOCT	T_NOCT	44.6	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.85045	V
Light-generated current (ref)	I_L_ref	2.29531	A
Saturation current (ref)	I_o_ref	9.31e-14	A
Series resistance	R_s	3.31957	Ω
Shunt resistance (ref)	R_sh_ref	297.687	Ω
Cells in series	N_s	146	—
CEC Adjust factor	Adjust	-16.3478	%

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-1.0117	Sandia National Laboratories — PVsyst single-diode parameter translation. See data/pvsyst_params.README.md. https://pvpmc.sandia.gov/

Actions

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Module Specifications

Technology Thin Film

Bifacial No

BIPV No

Cells in series 146

Module area 0.72 m²

Dimensions 1.2 × 0.6 m

NOCT 44.6 °C

Temp. coefficient of Pmax -0.249 %/°C

Temp. coefficient of Voc -0.250 %/°C

Temp. coefficient of Isc 0.039 %/°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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