Phono Solar Technology Co.Ltd. PS425M8GFH-18/VNH

Mono-c-Si

425 W Pmax

39.6 V Voc

13.51 A Isc

32.9 V Vmp

12.92 A Imp

21.91 % eff.

0.7945 FF

54 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	425.068	W
PTC Power	PTC	404.0	W
Open-circuit voltage	V_oc_ref	39.6	V
Short-circuit current	I_sc_ref	13.51	A
Max-power voltage	V_mp_ref	32.9	V
Max-power current	I_mp_ref	12.92	A
Fill factor	FF	0.7945	—
Efficiency (STC)	η	21.91	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.005944	A/°C
Voc temperature coefficient	beta_oc	-0.0891	V/°C
Pmax temperature coefficient	gamma_r	-0.293	%/°C
NOCT	T_NOCT	43.1	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	1.35563	V
Light-generated current (ref)	I_L_ref	13.51124	A
Saturation current (ref)	I_o_ref	2.78e-12	A
Series resistance	R_s	0.1873	Ω
Shunt resistance (ref)	R_sh_ref	2045.057	Ω
Cells in series	N_s	18	—
CEC Adjust factor	Adjust	6.0539	%

The CEC list gives 18 cells in series, which puts 2.20 V on each cell. A silicon cell gives 0.55 to 0.80 V, so PV Ivy uses 54 cells in series for the .PAN file and Similar Modules, found from the CEC count times 3 (it counts one bypass substring).

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Module Specifications

Technology Mono-c-Si

Bifacial No

BIPV No

Cells in series 54 (inferred, CEC lists 18)

Module area 1.94 m²

NOCT 43.1 °C

Temp. coefficient of Pmax -0.293 %/°C

Temp. coefficient of Voc -0.225 %/°C

Temp. coefficient of Isc 0.044 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 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.

PS425M8GFH-18/VNH Main listing, this page
PS425M8GFH-18/VNHB

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