ET Solar Industry ET-P660255WBZAC

Multi-c-Si

255 W Pmax

37.54 V Voc

8.82 A Isc

30.91 V Vmp

8.25 A Imp

15.83 % eff.

0.7702 FF

60 cells

Same test data as ET-P660255BB and 10 other listings. 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	255.007	W
PTC Power	PTC	230.6	W
Open-circuit voltage	V_oc_ref	37.54	V
Short-circuit current	I_sc_ref	8.82	A
Max-power voltage	V_mp_ref	30.91	V
Max-power current	I_mp_ref	8.25	A
Fill factor	FF	0.7702	—
Efficiency (STC)	η	15.83	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.003528	A/°C
Voc temperature coefficient	beta_oc	-0.123882	V/°C
Pmax temperature coefficient	gamma_r	-0.45	%/°C
NOCT	T_NOCT	45.5	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.56658	V
Light-generated current (ref)	I_L_ref	8.82886	A
Saturation current (ref)	I_o_ref	3.4e-10	A
Series resistance	R_s	0.23752	Ω
Shunt resistance (ref)	R_sh_ref	236.362	Ω
Cells in series	N_s	60	—
CEC Adjust factor	Adjust	10.3892	%

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-0.2402	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 45.5 °C

Temp. coefficient of Pmax -0.450 %/°C

Temp. coefficient of Voc -0.330 %/°C

Temp. coefficient of Isc 0.040 %/°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

12 listings with identical nameplate test data, one per frame, color or backsheet version.

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