CSI Solar Co. Ltd. CS1Y-400MS

Mono-c-Si

400.2 W Pmax

52.3 V Voc

9.9 A Isc

43.5 V Vmp

9.2 A Imp

20.52 % eff.

0.7729 FF

78 cells

IV curves not yet precomputed for this module. Run python manage.py precompute_iv_curves to generate them.

CEC Single-Diode Model Parameters

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	400.2	W
PTC Power	PTC	376.3	W
Open-circuit voltage	V_oc_ref	52.3	V
Short-circuit current	I_sc_ref	9.9	A
Max-power voltage	V_mp_ref	43.5	V
Max-power current	I_mp_ref	9.2	A
Fill factor	FF	0.7729	—
Efficiency (STC)	η	20.52	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004257	A/°C
Voc temperature coefficient	beta_oc	-0.142779	V/°C
Pmax temperature coefficient	gamma_r	-0.347	%/°C
NOCT	T_NOCT	42.9	°C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.95874	V
Light-generated current (ref)	I_L_ref	9.91826	A
Saturation current (ref)	I_o_ref	—	A
Series resistance	R_s	0.29529	Ω
Shunt resistance (ref)	R_sh_ref	160.122	Ω
Cells in series	N_s	78	—
CEC Adjust factor	Adjust	7.0457	%

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 78

Module area 1.95 m²

NOCT 42.9 °C

CEC listing date 11/16/2022

Annual degradation 0.55%/yr

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