CSI Solar Co. Ltd. CS3K-310MS

Mono-c-Si

310 W Pmax

39.7 V Voc

9.98 A Isc

32.9 V Vmp

9.43 A Imp

19.35 % eff.

0.783 FF

60 cells

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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	310.247	W
PTC Power	PTC	288.6	W
Open-circuit voltage	V_oc_ref	39.7	V
Short-circuit current	I_sc_ref	9.98	A
Max-power voltage	V_mp_ref	32.9	V
Max-power current	I_mp_ref	9.43	A
Fill factor	FF	0.783	—
Efficiency (STC)	η	19.35	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.003583	A/°C
Voc temperature coefficient	beta_oc	-0.115845	V/°C
Pmax temperature coefficient	gamma_r	-0.3869	%/°C
NOCT	T_NOCT	43.3	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.52716	V
Light-generated current (ref)	I_L_ref	9.98591	A
Saturation current (ref)	I_o_ref	5.07e-11	A
Series resistance	R_s	0.22578	Ω
Shunt resistance (ref)	R_sh_ref	381.134	Ω
Cells in series	N_s	3	—
CEC Adjust factor	Adjust	6.168	%

The CEC list gives 3 cells in series, which puts 13.23 V on each cell. A silicon cell gives 0.55 to 0.80 V, so PV Ivy uses 60 cells in series for the .PAN file and Similar Modules, found from Voc per cell and the CEC fit's ideality factor.

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 60 (inferred, CEC lists 3)

Module area 1.603 m²

NOCT 43.3 °C

Temp. coefficient of Pmax -0.387 %/°C

Temp. coefficient of Voc -0.292 %/°C

Temp. coefficient of Isc 0.036 %/°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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