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

Mono-c-Si Bifacial

425.17 W Pmax

49.4 V Voc

11.02 A Isc

41.0 V Vmp

10.37 A Imp

19.5 % eff.

0.781 FF

72 cells

IV curves not yet precomputed for this module. Run python manage.py precompute_iv_curves to generate them.

CEC Single-Diode Model Parameters

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	425.17	W
PTC Power	PTC	400.3	W
Open-circuit voltage	V_oc_ref	49.4	V
Short-circuit current	I_sc_ref	11.02	A
Max-power voltage	V_mp_ref	41.0	V
Max-power current	I_mp_ref	10.37	A
Fill factor	FF	0.781	—
Efficiency (STC)	η	19.5	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.0054	A/°C
Voc temperature coefficient	beta_oc	-0.131404	V/°C
Pmax temperature coefficient	gamma_r	-0.329	%/°C
NOCT	T_NOCT	43.1	°C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.80831	V
Light-generated current (ref)	I_L_ref	11.0321	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.26777	Ω
Shunt resistance (ref)	R_sh_ref	244.772	Ω
Cells in series	N_s	72	—
CEC Adjust factor	Adjust	4.5074	%

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Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 72

Module area 2.18 m²

NOCT 43.1 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr