GermanSolar USA Inc. GSM10-144-580W

Mono-c-Si

580 W Pmax

53.92 V Voc

13.35 A Isc

45.0 V Vmp

12.89 A Imp

24.07 % eff.

0.8058 FF

72 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	580.05	W
PTC Power	PTC	551.8	W
Open-circuit voltage	V_oc_ref	53.92	V
Short-circuit current	I_sc_ref	13.35	A
Max-power voltage	V_mp_ref	45.0	V
Max-power current	I_mp_ref	12.89	A
Fill factor	FF	0.8058	—
Efficiency (STC)	η	24.07	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005901	A/°C
Voc temperature coefficient	beta_oc	-0.123018	V/°C
Pmax temperature coefficient	gamma_r	-0.2964	%/°C
NOCT	T_NOCT	43.4	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.83556	V
Light-generated current (ref)	I_L_ref	13.35001	A
Saturation current (ref)	I_o_ref	2.33e-12	A
Series resistance	R_s	0.24164	Ω
Shunt resistance (ref)	R_sh_ref	528539.461	Ω
Cells in series	N_s	144	—
CEC Adjust factor	Adjust	3.171	%

The CEC list gives 144 cells in series, which puts 0.37 V on each cell. A silicon cell gives 0.55 to 0.80 V, so PV Ivy uses 72 cells in series for the .PAN file and Similar Modules, found from the model name (144 half cells).

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 72 (inferred, CEC lists 144)

Module area 2.41 m²

NOCT 43.4 °C

Temp. coefficient of Pmax -0.296 %/°C

Temp. coefficient of Voc -0.228 %/°C

Temp. coefficient of Isc 0.044 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

Measured Data

No measured data yet for this module.

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