ZNSHINE PV-TECH Co. Ltd. ZXM8-TPLDD132-640/M

Mono-c-Si

640 W Pmax

44.8 V Voc

18.17 A Isc

37.3 V Vmp

17.16 A Imp

20.78 % eff.

0.7863 FF

66 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	640.068	W
PTC Power	PTC	606.5	W
Open-circuit voltage	V_oc_ref	44.8	V
Short-circuit current	I_sc_ref	18.17	A
Max-power voltage	V_mp_ref	37.3	V
Max-power current	I_mp_ref	17.16	A
Fill factor	FF	0.7863	—
Efficiency (STC)	η	20.78	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004488	A/°C
Voc temperature coefficient	beta_oc	-0.115136	V/°C
Pmax temperature coefficient	gamma_r	-0.311	%/°C
NOCT	T_NOCT	42.7	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.55164	V
Light-generated current (ref)	I_L_ref	18.18873	A
Saturation current (ref)	I_o_ref	5.17e-12	A
Series resistance	R_s	0.15107	Ω
Shunt resistance (ref)	R_sh_ref	146.58	Ω
Cells in series	N_s	66	—
CEC Adjust factor	Adjust	-4.3748	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 66

Module area 3.08 m²

NOCT 42.7 °C

Temp. coefficient of Pmax -0.311 %/°C

Temp. coefficient of Voc -0.257 %/°C

Temp. coefficient of Isc 0.025 %/°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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