SunPower SPR-X20-450-COM

Mono-c-Si

450 W Pmax

90.5 V Voc

6.26 A Isc

76.7 V Vmp

5.87 A Imp

20.84 % eff.

0.7947 FF

128 cells

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	450.229	W
PTC Power	PTC	418.9	W
Open-circuit voltage	V_oc_ref	90.5	V
Short-circuit current	I_sc_ref	6.26	A
Max-power voltage	V_mp_ref	76.7	V
Max-power current	I_mp_ref	5.87	A
Fill factor	FF	0.7947	—
Efficiency (STC)	η	20.84	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.001941	A/°C
Voc temperature coefficient	beta_oc	-0.265165	V/°C
Pmax temperature coefficient	gamma_r	-0.352	%/°C
NOCT	T_NOCT	45.7	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	3.38879	V
Light-generated current (ref)	I_L_ref	6.26551	A
Saturation current (ref)	I_o_ref	1.54e-11	A
Series resistance	R_s	0.53858	Ω
Shunt resistance (ref)	R_sh_ref	611.727	Ω
Cells in series	N_s	128	—
CEC Adjust factor	Adjust	-0.1393	%

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 Pmp0.12	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 Mono-c-Si

Bifacial No

BIPV No

Cells in series 128

Module area 2.16 m²

NOCT 45.7 °C

Temp. coefficient of Pmax -0.352 %/°C

Temp. coefficient of Voc -0.293 %/°C

Temp. coefficient of Isc 0.031 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 16 Nov 2022 list

Annual degradation 0.25%/yr

Measured Data

No measured data yet for this module.

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