Jinko Solar Co. Ltd JKM425M-78H

Mono-c-Si

425 W Pmax

51.43 V Voc

10.48 A Isc

43.23 V Vmp

9.83 A Imp

20.33 % eff.

0.7884 FF

78 cells

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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	424.951	W
PTC Power	PTC	390.5	W
Open-circuit voltage	V_oc_ref	51.43	V
Short-circuit current	I_sc_ref	10.48	A
Max-power voltage	V_mp_ref	43.23	V
Max-power current	I_mp_ref	9.83	A
Fill factor	FF	0.7884	—
Efficiency (STC)	η	20.33	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004892	A/°C
Voc temperature coefficient	beta_oc	-0.162077	V/°C
Pmax temperature coefficient	gamma_r	-0.419	%/°C
NOCT	T_NOCT	45.2	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	2.10127	V
Light-generated current (ref)	I_L_ref	10.4871	A
Saturation current (ref)	I_o_ref	2.42e-10	A
Series resistance	R_s	0.18361	Ω
Shunt resistance (ref)	R_sh_ref	270.908	Ω
Cells in series	N_s	26	—
CEC Adjust factor	Adjust	10.8708	%

The CEC list gives 26 cells in series, which puts 1.98 V on each cell. A silicon cell gives 0.55 to 0.80 V, so PV Ivy uses 78 cells in series for the .PAN file and Similar Modules, found from the model name (78 cells).

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 78 (inferred, CEC lists 26)

Module area 2.09 m²

NOCT 45.2 °C

Temp. coefficient of Pmax -0.419 %/°C

Temp. coefficient of Voc -0.315 %/°C

Temp. coefficient of Isc 0.047 %/°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.

JKM425M-78H Main listing, this page
JKM425M-78H-V

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