LONGi Green Energy Technology Co. Ltd. LR4-72HPH-425M

Mono-c-Si

425 W Pmax

48.3 V Voc

11.23 A Isc

40.5 V Vmp

10.5 A Imp

20.06 % eff.

0.784 FF

72 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	425.25	W
PTC Power	PTC	397.5	W
Open-circuit voltage	V_oc_ref	48.3	V
Short-circuit current	I_sc_ref	11.23	A
Max-power voltage	V_mp_ref	40.5	V
Max-power current	I_mp_ref	10.5	A
Fill factor	FF	0.784	—
Efficiency (STC)	η	20.06	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004604	A/°C
Voc temperature coefficient	beta_oc	-0.127995	V/°C
Pmax temperature coefficient	gamma_r	-0.334	%/°C
NOCT	T_NOCT	45.1	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.7769	V
Light-generated current (ref)	I_L_ref	11.245	A
Saturation current (ref)	I_o_ref	1.71e-11	A
Series resistance	R_s	0.21247	Ω
Shunt resistance (ref)	R_sh_ref	159.066	Ω
Cells in series	N_s	72	—
CEC Adjust factor	Adjust	6.1393	%

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 Pmp0.0347	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 72

Module area 2.12 m²

NOCT 45.1 °C

Temp. coefficient of Pmax -0.334 %/°C

Temp. coefficient of Voc -0.265 %/°C

Temp. coefficient of Isc 0.041 %/°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.

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