GAF TLS-2-56

Mono-c-Si BIPV

56 W Pmax

10.66 V Voc

6.63 A Isc

8.9 V Vmp

6.29 A Imp

8.0 % eff.

0.7921 FF

16 cells

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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	55.981	W
PTC Power	PTC	48.1	W
Open-circuit voltage	V_oc_ref	10.66	V
Short-circuit current	I_sc_ref	6.63	A
Max-power voltage	V_mp_ref	8.9	V
Max-power current	I_mp_ref	6.29	A
Fill factor	FF	0.7921	—
Efficiency (STC)	η	8.0	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.003063	A/°C
Voc temperature coefficient	beta_oc	-0.030264	V/°C
Pmax temperature coefficient	gamma_r	-0.3955	%/°C
NOCT	T_NOCT	55.7	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	0.41823	V
Light-generated current (ref)	I_L_ref	6.63165	A
Saturation current (ref)	I_o_ref	5.62e-11	A
Series resistance	R_s	0.07674	Ω
Shunt resistance (ref)	R_sh_ref	307.835	Ω
Cells in series	N_s	8	—
CEC Adjust factor	Adjust	13.5847	%

The CEC list gives 8 cells in series, which puts 1.33 V on each cell. A silicon cell gives 0.55 to 0.80 V, so PV Ivy uses 16 cells in series for the .PAN file and Similar Modules, found from Voc per cell (unusual layout, so the count is an estimate).

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV Yes

Cells in series 16 (inferred, CEC lists 8)

Module area 0.7 m²

NOCT 55.7 °C

Temp. coefficient of Pmax -0.396 %/°C

Temp. coefficient of Voc -0.284 %/°C

Temp. coefficient of Isc 0.046 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

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.

TLS-2-56 Main listing, this page
TLS-2J-56

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