The Sigenergy SigenStor BAT 40.3 – 40.3kWh Battery is a high-capacity energy storage solution designed for solar PV systems with significant energy storage requirements. With 40.3kWh of storage capacity, it can store excess solar energy generated during periods of high production and make it available when solar generation is lower or energy demand increases.
The SigenStor BAT 40.3 helps maximise solar self-consumption, reduce reliance on grid electricity, and improve overall energy management. Its modular energy storage approach makes it suitable for larger residential applications and compatible Sigenergy systems requiring substantial battery capacity.
40.3kWh Energy Capacity – Provides substantial energy storage for higher energy requirements.
Solar Energy Storage – Stores surplus solar power for use during evenings or periods of low solar generation.
Modular Battery Solution – Supports flexible energy storage system configurations.
High-Capacity Energy Storage – Suitable for applications requiring significant stored energy.
Improved Solar Self-Consumption – Helps make greater use of solar energy generated on-site.
Flexible Energy Management – Supports better control over when stored energy is used.
Sigenergy System Integration – Designed for use within compatible Sigenergy energy storage solutions.
The 40.3kWh SigenStor BAT 40.3 is designed for users who need substantial energy storage capacity alongside their solar system. By storing excess renewable energy for later use, it can help maximise solar self-consumption, reduce grid dependence, and provide greater flexibility in managing energy demand.
Large residential solar installations
Homes with high electricity consumption
Solar PV systems requiring substantial battery storage
Increasing solar self-consumption
Reducing dependence on grid electricity
Supporting greater energy independence
Compatible Sigenergy energy storage systems
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See the images below for battery location guidelines and spacing required.

