Hanwha Q CELLS QPEAK DUO ML-G12S7/BFG 665

Mono-c-Si Bifacial

665 W Pmax

45.7 V Voc

18.39 A Isc

38.11 V Vmp

17.45 A Imp

21.95 % eff.

0.7913 FF

66 cells

Same test data as QPEAK DUO ML-G12S3/BFG 665. CEC lists each frame, color and backsheet version as its own listing.

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	665.019	W
PTC Power	PTC	622.3	W
Open-circuit voltage	V_oc_ref	45.7	V
Short-circuit current	I_sc_ref	18.39	A
Max-power voltage	V_mp_ref	38.11	V
Max-power current	I_mp_ref	17.45	A
Fill factor	FF	0.7913	—
Efficiency (STC)	η	21.95	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.006253	A/°C
Voc temperature coefficient	beta_oc	-0.110594	V/°C
Pmax temperature coefficient	gamma_r	-0.324	%/°C
NOCT	T_NOCT	46.3	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.62043	V
Light-generated current (ref)	I_L_ref	18.40058	A
Saturation current (ref)	I_o_ref	1.03e-11	A
Series resistance	R_s	0.14326	Ω
Shunt resistance (ref)	R_sh_ref	249.104	Ω
Cells in series	N_s	66	—
CEC Adjust factor	Adjust	7.1983	%

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Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 66

Module area 3.03 m²

NOCT 46.3 °C

Temp. coefficient of Pmax -0.324 %/°C

Temp. coefficient of Voc -0.242 %/°C

Temp. coefficient of Isc 0.034 %/°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.

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