ET Solar Industry ET-P660275WW

Multi-c-Si

275 W Pmax

38.92 V Voc

9.35 A Isc

31.32 V Vmp

8.78 A Imp

17.07 % eff.

0.7557 FF

60 cells

Same test data as ET-P660275WB. 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	274.99	W
PTC Power	PTC	251.1	W
Open-circuit voltage	V_oc_ref	38.92	V
Short-circuit current	I_sc_ref	9.35	A
Max-power voltage	V_mp_ref	31.32	V
Max-power current	I_mp_ref	8.78	A
Fill factor	FF	0.7557	—
Efficiency (STC)	η	17.07	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005152	A/°C
Voc temperature coefficient	beta_oc	-0.12182	V/°C
Pmax temperature coefficient	gamma_r	-0.422	%/°C
NOCT	T_NOCT	45.3	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.57283	V
Light-generated current (ref)	I_L_ref	9.35885	A
Saturation current (ref)	I_o_ref	1.66e-10	A
Series resistance	R_s	0.33652	Ω
Shunt resistance (ref)	R_sh_ref	355.415	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	9.1691	%

Additional Model Sources

Source	Model type	Fit quality	Citation
CEC module list (via SAM library) Default	CEC / De Soto single-diode	—	https://www.energy.ca.gov/media/2367
Sandia PVsyst single-diode fit	PVsyst single-diode	NMBE Pmp-0.023	Sandia National Laboratories — PVsyst single-diode parameter translation. See data/pvsyst_params.README.md. https://pvpmc.sandia.gov/

Actions

Open in PV Explorer Generate PAN File Datasheet not on file CEC Source Data

Module Specifications

Technology Multi-c-Si

Bifacial No

BIPV No

Cells in series 60

Module area 1.611 m²

Dimensions 1.634 × 0.986 m

NOCT 45.3 °C

Temp. coefficient of Pmax -0.422 %/°C

Temp. coefficient of Voc -0.313 %/°C

Temp. coefficient of Isc 0.055 %/°C

CEC list Not on the 23 Jun 2026 list

Last listed 16 Nov 2022

Parameters from 16 Nov 2022 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.

Related Models

Similar Modules

Other manufacturers, same technology and cell count, power within 3 %.