Venus Energy Limited VE-640-66IIMK

Mono-c-Si

630 W Pmax

45.28 V Voc

17.79 A Isc

37.74 V Vmp

16.69 A Imp

20.19 % eff.

0.7819 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	629.881	W
PTC Power	PTC	600.3	W
Open-circuit voltage	V_oc_ref	45.28	V
Short-circuit current	I_sc_ref	17.79	A
Max-power voltage	V_mp_ref	37.74	V
Max-power current	I_mp_ref	16.69	A
Fill factor	FF	0.7819	—
Efficiency (STC)	η	20.19	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005373	A/°C
Voc temperature coefficient	beta_oc	-0.116324	V/°C
Pmax temperature coefficient	gamma_r	-0.3587	%/°C
NOCT	T_NOCT	43.1	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.67921	V
Light-generated current (ref)	I_L_ref	17.81124	A
Saturation current (ref)	I_o_ref	3.39e-11	A
Series resistance	R_s	0.13883	Ω
Shunt resistance (ref)	R_sh_ref	116.276	Ω
Cells in series	N_s	66	—
CEC Adjust factor	Adjust	11.6176	%

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 Pmp0.0053	Sandia National Laboratories — PVsyst single-diode parameter translation. See data/pvsyst_params.README.md. https://pvpmc.sandia.gov/

Actions

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 66

Module area 3.12 m²

NOCT 43.1 °C

Temp. coefficient of Pmax -0.359 %/°C

Temp. coefficient of Voc -0.257 %/°C

Temp. coefficient of Isc 0.030 %/°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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