JA Solar JAM78D10-445/MB

Mono-c-Si Bifacial

446 W Pmax

53.3 V Voc

10.42 A Isc

45.0 V Vmp

9.9 A Imp

20.72 % eff.

0.8021 FF

78 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	445.5	W
PTC Power	PTC	416.6	W
Open-circuit voltage	V_oc_ref	53.3	V
Short-circuit current	I_sc_ref	10.42	A
Max-power voltage	V_mp_ref	45.0	V
Max-power current	I_mp_ref	9.9	A
Fill factor	FF	0.8021	—
Efficiency (STC)	η	20.72	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.00396	A/°C
Voc temperature coefficient	beta_oc	-0.140179	V/°C
Pmax temperature coefficient	gamma_r	-0.329	%/°C
NOCT	T_NOCT	45.4	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.93252	V
Light-generated current (ref)	I_L_ref	10.424	A
Saturation current (ref)	I_o_ref	1.09e-11	A
Series resistance	R_s	0.22397	Ω
Shunt resistance (ref)	R_sh_ref	589.907	Ω
Cells in series	N_s	78	—
CEC Adjust factor	Adjust	3.6715	%

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 Pmp-0.2127	Sandia National Laboratories — PVsyst single-diode parameter translation. See data/pvsyst_params.README.md. https://pvpmc.sandia.gov/

Actions

Open in PV Explorer Generate PAN File Datasheet not on file CEC Source Data

Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 78

Module area 2.15 m²

NOCT 45.4 °C

Temp. coefficient of Pmax -0.329 %/°C

Temp. coefficient of Voc -0.263 %/°C

Temp. coefficient of Isc 0.038 %/°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.

Related Models

Similar Modules

Other manufacturers, same technology and cell count, power within 3 %.