Sigenergy SigenStor 11.5kW / 36.16kWh Home Backup System

The SigenStor system is the world’s first AI-optimized, fully integrated 5-in-One home energy management system that empowers home owners to use solar energy to achieve energy independence with maximum efficiency, savings, flexibility and resilience.
Its unique 5-in-One modular design integrates the solar inverter, an optional bi-directional 25kW EV DC Charger, the Battery PCS, Battery Packs, and the EMS into one fully integrated, intelligent system. 

The two battery module BAT 6.0 with 6.02kWh and BAT 9.0 with 9.04kWh are the same size and can be flexible to config a storage capacity from 6.02kWh to 54.24kWh.
What make the SigenStor amazing performance is the Sigenergy loadhub: 
• 5 double-pole controllable loads
• 0 ms load-side disruption when switching to backup mode
• Supports generator, heat pump or other controllable load
• Supports both whole-home & partial-home backup
• Uninterrupted power supply through PV +ESS/grid/generator

SigenStor 11.5kW / 36.16kWh System Overview

The Sigenergy SigenStor 11.5kW / 36.16kWh Home Energy Storage System is a modular solar and battery storage solution designed for U.S. residential applications. The SigenStor-11.5-36.12 configuration combines one SigenStor EC SP US Energy Controller configured for 11.5kW AC output with four SigenStor BAT 9.0 US LiFePO₄ battery modules, providing 36.16kWh total battery capacity and 35.04kWh usable energy.

Designed for 120/240V split-phase homes, the system supports up to 23kW of solar PV input, four independent MPPT trackers, on-grid operation, and backup power. When paired with the optional Sigen LoadHub, the system can support whole-home or partial-home backup and 0 ms load-side disruption under specified operating conditions

Application Scenarios

 
- New solar + battery hybrid system
- AC-Coupling with existing solar system for retrofit 
- Completely off-grid system
- Battery backup system that charge from grid and system operate at time of use to shave peak hour( TOU ) 

Key Features

• 5-in-One, Full Integration
  Integrating the Solar Inverter, an optional bi-directional EV DC Charger, the Battery PCS, Battery Packs, and the EMS into one powerful energy system.

• Expandable On Demand
  With 6 and 9 kWh battery packs, flexible capacity combinations can be created to suit your needs at different stages of your independent home energy journey.
  -1~6 batteries per pack
  -7 (Max.) stacks in parallel
  -6~54Kwh capacity per system

• Tough By Design, Peace Of Mind
  -314 Ah large capacity battery cells, long lifespan
  -6 major safety strategies in each battery pack
  -Multi-source black start capability, uninterrupted power
  -NEMA 4X enclosure type, install anywhere

• Effortlessly Efficient
  -Self-guiding pin connectors between modules automatically connect once stacked, avoiding the need for field wiring and saving installation cost.
  -As a DC-coupled system, DC-DC Optimizers in each battery pack and parallel pack-connections drive better long-term performance by avoiding battery mismatch.

• AI Optimized, Future Proof
  Experience AI-assisted support, monitor deployed systems and perform remote diagnostics all via our mySigen App. System owners will enjoy AI-assisted energy planning, safety features and grid-services.

• Two-way EV Charging, Pioneering V2X (optional)
  -With the Sigen Home DC-coupled charging module, you can harness the power of the sun and directly charge your EV with clean solar energy.
  -Additionally, its bi-directional capability allows you to tap into the power of your EV to backup your home during a power outage.

System Configuration

System Model: SigenStor-11.5-36.16
Energy Controller: 1 × SigenStor EC SP US
Battery Modules: 2 × SigenStor BAT 9.0 US
Battery Chemistry: LiFePO₄ (LFP)
Total Battery Capacity: 36.16 kWh
Usable Battery Capacity: 35.04 kWh
Maximum Continuous AC Output: 11.5 kW
AC Voltage: 120/240V Split Phase
Nominal Frequency: 60 Hz
Application: Residential Solar + Battery Energy Storage / Home Backup
Compatible Backup Equipment: Sigen LoadHub US 

Technical Specifications

Sigen Energy Controller

Model: SigenStor EC SP US
Nominal AC Output Power: 11,500 W
Maximum Continuous AC Current: 48 A
Recommended AC Switch Rating: 60 A
Nominal AC Output Voltage: 120/240V
Grid Frequency Range: 59.3–60.5 Hz
Power Factor: 0.8 Leading to 0.8 Lagging
Total Current Harmonic Distortion: THDi < 2%
Maximum Efficiency: 97.8%

Maximum PV Input Power: 23,000 W
Maximum DC Input Voltage: 600 V
Nominal DC Input Voltage: 360 V
PV Start-Up Voltage: 100 V
MPPT Voltage Range: 50–550 V
Number of MPPT Trackers: 4
PV Strings per MPPT: 1
Maximum Input Current per MPPT: 16 A
Maximum Short-Circuit Current per MPPT: 20 A

Backup Power

Backup Output Power at 240V: 11,500 W
Backup Output Power at 120V: 5,750 W
Peak Backup Output Power: 17,100 W for 10 seconds
Backup Output Voltage: 120/240V
Output Frequency Range: 59.3–60.5 Hz
Total Voltage Harmonic Distortion: THDv < 2%
Backup Load-Side Disruption: 0 ms*

*0 ms load-side disruption requires the Sigen LoadHub US, Sigen Energy Controller US, and Sigen Battery US operating together under Sigenergy's specified conditions. 

Battery

Battery Model: SigenStor BAT 9.0 US
Quantity: 2 Battery Modules
Battery Type: LiFePO₄ (Lithium Iron Phosphate)
Total Energy per Battery: 9.04 kWh
Usable Energy per Battery: 8.76 kWh
System Total Energy: 36.16kWh
System Usable Energy: 35.04 kWh
Maximum Charge / Discharge Power per Battery: 4,600 W
Peak Charge / Discharge Power per Battery: 6,900 W for 10 seconds
Compatible Controller Battery Voltage Range: 300–600 V

Physical & Environmental

Energy Controller Dimensions (W × H × D): 27.6 × 11.8 × 10.2 in. (700 × 300 × 260 mm)
Energy Controller Weight: 77.1 lb (35 kg)
Controller Operating Temperature: -22°F to 140°F (-30°C to 60°C)
Controller Storage Temperature: -40°F to 158°F (-40°C to 70°C)
Controller Cooling: Smart Air Cooling
Controller Communication: WLAN / Fast Ethernet / RS485 / Sigen CommMod US (4G / 3G)

Battery Dimensions per Module (W × H × D): 30.2 × 10.6 × 10.4 in. (767 × 270 × 265 mm)
Battery Weight per Module: 172 lb (78 kg)
Battery Operating Temperature: -4°F to 131°F (-20°C to 55°C)
Battery Storage Temperature: -13°F to 140°F (-25°C to 60°C)
Battery Relative Humidity: 5%–95%
Maximum Operating Altitude: 13,123 ft (4,000 m)
Battery Cooling: Natural Convection
Battery Enclosure: Type 4X
Battery Installation: Floor-Standing or Wall-Mounted

Standards & Compliance

SigenStor EC SP US: UL 1741, UL 1741 SB, UL 1741 CRD, IEEE 1547-2018, IEEE 1547.1-2020, UL 1998, UL 991, UL 1699B, California Proposition 65, FCC Part 15 Class B.

SigenStor BAT 9.0 US: UL 1973, UL 1998, UL 9540, UL 9540A, UN 38.3, California Proposition 65, FCC Part 15 Class B

Shipping and Delivery

• The battery can only ship via freight truck

Downloads and Documentation

Datasheets

Brochure_Sigenergy_Home_solutions.pdf
Datasheet_- SigenStor_BAT_Battery_6.0-9.0_US.pdf
Datasheet_-_Sigen_enegy_controller_US.pdf
Datasheet_-_Sigen_LoadHub_US.pdf
Datasheet_-_Sigen_EV_DC_US.pdf

User Manual
SigeStor_Home_Install_Manual.pdf
-01-SigenStor_Home_Important_Notice_EN.pdf
-02-SigenStor_Home_Installation_Guide_EN.pdf
-03-SigenStor_Home_Alarm_list_EN.pdf

Certification

HUB 
Sigen_LoadHub_Installation_Guide
-01-Sigen_Home_Important_Notice_EN.pdf
-02-Sigen_LoadHub_Installation_Guide_EN.pdf
-03-Sigen_LoadHub_Alarm_list_EN.pdf

About Sigenergy

Sigenergy is a forward-thinking company focusing on developing cutting-edge home and business energy solutions, including energy storage systems, solar inverters, and EV chargers. Our world-class R&D team of hundreds of industry talents shares the vision of making the world greener through continuous innovation.

By integrating the latest power electronics, digital, and AI technologies, we build next-generation energy products with optimum safety features. With global sales and services, we aim to become our customers' most trusted partners on their journey to a more sustainable future.