SigenStor 27kWh 5-in-One Stackable Energy Storage System

Build a home solar and battery backup system around Sigenergy’s modular SigenStor platform. This kit pairs three BAT 9.0 US batteries with a split-phase Sigen Energy Controller and Sigen LoadHub. It provides 27.12kWh of total battery capacity, with 26.28kWh usable under the manufacturer’s stated test conditions.

The system can store solar energy for later use and supply backup power to selected circuits or the home, depending on the final electrical design. Its stackable format also gives you a path to expand storage as your needs change.

What’s Included

• (3) SigenStor BAT 9.0 US battery modules: 9.04kWh total and 8.76kWh usable capacity per module
• (1) Sigen Energy Controller Split Phase US: integrated solar inverter, battery power conversion, and energy management; field configurable from 3.8kW to 11.5kW
• (1) Sigen LoadHub US: 120/240V split-phase hub for connecting the system to home loads and backup power

The inverter is integrated into the Energy Controller. The EV DC charging module and solar panels are not included in the components listed for this kit.

Why Choose This System?

27kWh of Expandable Battery Storage

Three lithium iron phosphate (LFP) battery modules provide 27.12kWh of total capacity. The modules stack together using guided connectors, reducing the wiring needed between batteries. Each BAT 9.0 US module has a published usable capacity of 8.76kWh, for 26.28kWh across this kit under the manufacturer’s test conditions.

Solar, Storage, and Backup in One Platform

The Sigen Energy Controller combines the solar inverter, battery power conversion system, and energy management functions. It has four MPPT inputs for solar array design and is field configurable from 3.8kW to 11.5kW. The appropriate operating rating and solar configuration should be determined for the installation.

Flexible Home Backup

The US Sigen LoadHub supports whole-home or partial-home backup designs. It provides a 200A grid connection, connections for up to two SigenStor systems, five smart load ports, and a generator connection. Which loads can run during an outage depends on the controller configuration, connected equipment, battery charge, and the home’s electrical loads.

Room to Grow

SigenStor’s modular design allows compatible battery modules to be added to expand storage. The platform also supports an optional Sigen EV DC charging module, sold separately. EV charging and vehicle-to-home features require the appropriate additional hardware and compatibility review.

Technical Specifications

Before You Order

Have your installer confirm the controller’s configured power rating, which loads you want backed up, the mounting method, and the additional electrical equipment required for your site. Backup duration varies with your actual power use. 

EV DC charging hardware is not included. Vehicle-to-home and vehicle-to-grid functions should not be assumed for this kit without confirming the additional hardware, vehicle compatibility, and local requirements.