G-Star Pte Ltd GSD7G78M-590WT

Mono-c-Si

590 W Pmax

53.87 V Voc

13.93 A Isc

45.25 V Vmp

13.04 A Imp

21.3 % eff.

0.7863 FF

78 cells

Same test data as GSD7G78M-590BT. 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	590.06	W
PTC Power	PTC	556.4	W
Open-circuit voltage	V_oc_ref	53.87	V
Short-circuit current	I_sc_ref	13.93	A
Max-power voltage	V_mp_ref	45.25	V
Max-power current	I_mp_ref	13.04	A
Fill factor	FF	0.7863	—
Efficiency (STC)	η	21.3	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.006171	A/°C
Voc temperature coefficient	beta_oc	-0.159455	V/°C
Pmax temperature coefficient	gamma_r	-0.3321	%/°C
NOCT	T_NOCT	43.2	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.98927	V
Light-generated current (ref)	I_L_ref	13.94685	A
Saturation current (ref)	I_o_ref	2.36e-11	A
Series resistance	R_s	0.18301	Ω
Shunt resistance (ref)	R_sh_ref	151.315	Ω
Cells in series	N_s	78	—
CEC Adjust factor	Adjust	-4.2878	%

Actions

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 78

Module area 2.77 m²

NOCT 43.2 °C

Temp. coefficient of Pmax -0.332 %/°C

Temp. coefficient of Voc -0.296 %/°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.

Same Test Data

2 listings with identical nameplate test data, one per frame, color or backsheet version.

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