Trina Solar TSM-505DE18M(II)

Mono-c-Si

505 W Pmax

51.9 V Voc

12.35 A Isc

43.0 V Vmp

11.75 A Imp

21.59 % eff.

0.7883 FF

75 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	505.25	W
PTC Power	PTC	473.1	W
Open-circuit voltage	V_oc_ref	51.9	V
Short-circuit current	I_sc_ref	12.35	A
Max-power voltage	V_mp_ref	43.0	V
Max-power current	I_mp_ref	11.75	A
Fill factor	FF	0.7883	—
Efficiency (STC)	η	21.59	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.006792	A/°C
Voc temperature coefficient	beta_oc	-0.137016	V/°C
Pmax temperature coefficient	gamma_r	-0.337	%/°C
NOCT	T_NOCT	45.0	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.91579	V
Light-generated current (ref)	I_L_ref	12.3529	A
Saturation current (ref)	I_o_ref	2.11e-11	A
Series resistance	R_s	0.25388	Ω
Shunt resistance (ref)	R_sh_ref	1092.3	Ω
Cells in series	N_s	75	—
CEC Adjust factor	Adjust	7.2597	%

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 Pmp0.0149	Sandia National Laboratories — PVsyst single-diode parameter translation. See data/pvsyst_params.README.md. https://pvpmc.sandia.gov/

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 75

Module area 2.34 m²

NOCT 45.0 °C

Temp. coefficient of Pmax -0.337 %/°C

Temp. coefficient of Voc -0.264 %/°C

Temp. coefficient of Isc 0.055 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 16 Nov 2022 list

Annual degradation 0.55%/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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