CSI Solar Co. Ltd. CS7N-640MB-AG

Mono-c-Si Bifacial

640.125 W Pmax

44.6 V Voc

18.31 A Isc

37.5 V Vmp

17.07 A Imp

20.85 % eff.

0.7839 FF

66 cells

IV & PV Curves at STC (1000 W/m², 25 °C)

IV Curves — 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

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	640.125	W
PTC Power	PTC	595.7	W
Open-circuit voltage	V_oc_ref	44.6	V
Short-circuit current	I_sc_ref	18.31	A
Max-power voltage	V_mp_ref	37.5	V
Max-power current	I_mp_ref	17.07	A
Fill factor	FF	0.7839	—
Efficiency (STC)	η	20.85	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.009704	A/°C
Voc temperature coefficient	beta_oc	-0.130678	V/°C
Pmax temperature coefficient	gamma_r	-0.39	%/°C
NOCT	T_NOCT	43.7	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.78361	V
Light-generated current (ref)	I_L_ref	18.3292	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.09528	Ω
Shunt resistance (ref)	R_sh_ref	90.977	Ω
Cells in series	N_s	66	—
CEC Adjust factor	Adjust	14.1987	%

Actions

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Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 66

Module area 3.07 m²

NOCT 43.7 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr

Measured Data

No measured data yet for this module.

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