Heliene 156HC-645 M10 NTYP SL Bifacial

Mono-c-Si Bifacial

645 W Pmax

57.85 V Voc

13.86 A Isc

49.01 V Vmp

13.16 A Imp

23.12 % eff.

0.8044 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	644.972	W
PTC Power	PTC	613.1	W
Open-circuit voltage	V_oc_ref	57.85	V
Short-circuit current	I_sc_ref	13.86	A
Max-power voltage	V_mp_ref	49.01	V
Max-power current	I_mp_ref	13.16	A
Fill factor	FF	0.8044	—
Efficiency (STC)	η	23.12	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005155	A/°C
Voc temperature coefficient	beta_oc	-0.139951	V/°C
Pmax temperature coefficient	gamma_r	-0.2973	%/°C
NOCT	T_NOCT	43.3	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	2.00716	V
Light-generated current (ref)	I_L_ref	13.86725	A
Saturation current (ref)	I_o_ref	4.17e-12	A
Series resistance	R_s	0.18442	Ω
Shunt resistance (ref)	R_sh_ref	352.527	Ω
Cells in series	N_s	78	—
CEC Adjust factor	Adjust	1.8711	%

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Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 78

Module area 2.79 m²

NOCT 43.3 °C

Temp. coefficient of Pmax -0.297 %/°C

Temp. coefficient of Voc -0.242 %/°C

Temp. coefficient of Isc 0.037 %/°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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