SunPower® SunVault™ Energy Storage System (ESS) Datasheet

Performance

Specification	SunVault Base	SunVault Energy Expansion
Model Number	SV-BASE13-12-B	SV-ENERGY13-12-B
DC Rated Energy	13 kWh (128 Ah)	12 kWh (118 Ah)
Max. Usable Energy (DC)¹
Battery Cell Chemistry	Lithium iron phosphate (LiFePO4)	Lithium iron phosphate (LiFePO4)
Nom. Internal Battery Voltage	51.2 V	51.2 V
CEC Weighted RTE Efficiency²	> 86%	> 86%
Individual DC Breaker Rating	125 A / two pole³	125 A / two pole³
Max. AC Continuous Backup Output Current	28.3 A continuous	28.3 A continuous
Nom. AC Voltage (L–N–L)	120 / 240 VAC 60 Hz, split phase⁴	120 / 240 VAC 60 Hz, split phase⁴
Max. AC Output Fault Current	35 A	35 A
Max. Short Circuit Rating	10 kA	10 kA
AC Overcurrent Protection Device	40 A / two pole	40 A / two pole
Max. Single-Phase Load Supported (120 V)	4.8 kW (up to 5 minutes)	4.8 kW (up to 5 minutes)
Power Factor (full-rated power)	± 0.85	± 0.85
Max. Continuous Charge Power (Grid tied / Backup)	6.4 kW	6.4 kW
Max. Continuous Discharge Power (Grid tied)	6.0 kW	6.0 kW
Max. AC Continuous Output Current (Grid tied)	27 A	27 A

System Configurations

Configuration	Base	Base + Energy Expansion
Max. Backup Discharge Power⁵	6.8 kW / 7.5 kW / 8.5 kW / 10 kW (cont. / 30 min. / 10 sec. / 1 sec.)	6.8 kW / 8.0 kW / 12.0 kW (cont. / 30 min. / 10 sec.)

Environmental

Specification	Details
Seismic Rating	IEEE 693-2005, AC-156
Environmental Rating	Indoor and outdoor rated
Acoustic Noise Level	< 50 dBA @ 1 m distance, 86°F (30°C)
Recommended Operating Temp.	32°F to 86°F (0°C to 30°C)
Ambient Operating Temp.⁶	14°F to 122°F (-10°C to 50°C)
Shelf Ambient Temp.	-4°F to 113°F (-20°C to 45°C)
Initial Energy Reserve	30%
Humidity	0–95% (non-condensing)
Enclosure Type / Ingress Rating	NEMA Type 3R / IP54
Max. Elevation	6560 ft (2000 m)

Warranties, Certifications, and Compliance

Category	Details
Warranty	10 years
Certifications and Compliance	IFCC Part 15 Subclass B IEEE 1547 UL 1973 (UL 1642) UL 1741 UL 1741 SA (CA Rule 21) UL 9540 UL 9540A UN 38.3

Mechanical

Specification	Details
User Interface	Mobile app, LED panel
Dimensions	64.5 h × 26 w × 14.8 in. d (164 × 66 × 38 cm)⁷
Weight	SV-BASE13: 270 lb (122.5 kg) w/inverter; 528 lb (239.5 kg) fully assembled SV-ENERGY13: 400 lb (181.4 kg) fully assembled
Mounting Options	Wall or floor⁸

Product Image Description

The SunPower SunVault Energy Storage System (ESS) is depicted as a tall, slender, white rectangular unit. It features a clean design with subtle vertical paneling and ventilation grilles on the lower front. The SunPower logo is prominently displayed on the front of the unit. An ETL Listed mark by Intertek, indicating safety certification, is also visible.

Notes and Legal Information

¹ Some energy reserved for internal consumption.

² Tested at 6 kW, 25°C conditions.

³ SunVault Hub+ rating is 200 A.

⁴ 208 VAC is not supported at this time.

⁵ Values are rated at 25°C ambient.

⁶ Extended exposure reduces battery performance.

⁷ Two enclosures for 26 kWh.

⁸ Additional hardware details in installation guide.

Some parameters can vary depending on site-specific conditions. See the SunVault Installation Guide 536685 for guidelines. See www.sunpower.com/facts for additional reference information. Specifications included in this datasheet are subject to change without notice. © 2021 SunPower Corporation. All Rights Reserved. SUNPOWER, the SUNPOWER logo, and SUNVAULT are trademarks or registered trademarks of SunPower Corporation in the U.S. and other countries as well. 1-800-SUNPOWER.

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