SunPower SPR-X21-350-BLK-E-AC

Mono-c-Si

350 W Pmax

68.2 V Voc

6.5 A Isc

57.3 V Vmp

6.11 A Imp

21.48 % eff.

0.7898 FF

96 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	350.103	W
PTC Power	PTC	327.9	W
Open-circuit voltage	V_oc_ref	68.2	V
Short-circuit current	I_sc_ref	6.5	A
Max-power voltage	V_mp_ref	57.3	V
Max-power current	I_mp_ref	6.11	A
Fill factor	FF	0.7898	—
Efficiency (STC)	η	21.48	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.002275	A/°C
Voc temperature coefficient	beta_oc	-0.192324	V/°C
Pmax temperature coefficient	gamma_r	-0.331	%/°C
NOCT	T_NOCT	45.3	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	2.48494	V
Light-generated current (ref)	I_L_ref	6.50662	A
Saturation current (ref)	I_o_ref	7.67e-12	A
Series resistance	R_s	0.50604	Ω
Shunt resistance (ref)	R_sh_ref	496.916	Ω
Cells in series	N_s	96	—
CEC Adjust factor	Adjust	-2.2934	%

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 Pmp0.0999	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 96

Module area 1.63 m²

NOCT 45.3 °C

Temp. coefficient of Pmax -0.331 %/°C

Temp. coefficient of Voc -0.282 %/°C

Temp. coefficient of Isc 0.035 %/°C

CEC list Not on the 23 Jun 2026 list

Last listed 16 Nov 2022

Parameters from 16 Nov 2022 list

Annual degradation 0.25%/yr

Measured Data

No measured data yet for this module.

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