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Press Release

Sav S1 Energy Storage Cabinet

A' Design Award 2026 Silver Winner in Energy Products, Projects and Devices Design

15 April 2026

Sav S1 Energy Storage Cabinet by Zhejiang Sav Digital Power Technology Co., Ltd.
Sav S1 Energy Storage Cabinet by Zhejiang Sav Digital Power Technology Co., Ltd.
Sav S1 Energy Storage Cabinet by Zhejiang Sav Digital Power Technology Co., Ltd.
Sav S1 Energy Storage Cabinet by Zhejiang Sav Digital Power Technology Co., Ltd.
Sav S1 Energy Storage Cabinet by Zhejiang Sav Digital Power Technology Co., Ltd.

Zhejiang Sav Digital Power Technology Co., Ltd. · CLIENT: Zhejiang Sav Digital Power Technology Co., Ltd.

Sav S1 is an energy storage cabinet designed for industrial and commercial users. The cabinet combines high energy density, high conversion efficiency, and proactive safety. Peak energy conversion efficiency is over 90 percent, and units can operate in parallel without capacity loss. A modular design increases capacity, while precise voltage matching lowers energy loss. An intelligent battery management platform, immersion based thermal runaway suppression, and zoned isolation form multiple protective layers. An energy management system supports remote monitoring.

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Unique Properties
S1, tailored for industrial and commercial users, offers high energy density, high conversion efficiency, and high safety. Through optimized design and technology, it achieves the peak energy conversion efficiency of over 90 percent and supports parallel operation without capacity loss, ideal for applications like integrated solar storage charging systems or photovoltaic and energy storage solutions. It reduces energy costs, enhances power supply reliability, and promotes low carbon operation.
Dimensions & Packaging
1150 ×2400×1050mm
Tags
High Energy Density, Efficient Energy Conversion, Proactive Safety, Intelligent Management, Industrial and Commercial Energy Storage, Outdoor Cabinet, Smart Energy, Low Carbon Operation
Production Technology
S1 utilizes high purity materials to minimize heat generation and incorporates aerospace grade polymer materials to block heat diffusion, thus enhancing overall thermal stability. Through precise voltage matching between the PCS and the battery string, it reduces PCS energy loss by 30 percent. The use of a modular design increases capacity by 25 percent. Scientifically designed air ducts further decrease power consumption, improving overall energy efficiency and operational reliability.
Design Challenge
The challenge was ensuring high safety while integrating high energy capacity within a compact footprint. To address this, S1 introduces an AI powered battery management platform to intelligently predict and analyze battery conditions. Coupled with pack level immersion based thermal runaway suppression and zoned safety isolation, it establishes a closed loop safety mechanism of intelligent prediction and proactive intervention, enabling source prevention and rapid response for reliable safety.
Project Duration
The project started in Zhejiang in June 2024. The product was launched in China in March 2025.
Operation Flow
S1, loaded with a comprehensive energy management system, enables around the clock, real time online monitoring and remote operation. It can integrate with third party platforms to achieve data visualization and centralized management both locally and remotely.
The product features millisecond level switching capability, which allows seamless switching between grid connected and off grid modes in less than 10 milliseconds, ensuring continuous power supply for critical loads.
Research
S1 stems from a deep insight into space utilization, energy efficiency, and operational safety in industrial and commercial energy storage. A modular design enhances energy storage density per unit area while system level optimization improves energy conversion efficiency. With innovative materials and proactive safety,it establishes multiple protective layers from cell chemistry to system architecture. The result is a seamless blend of high energy density, high efficiency, and high safety.
Inspiration
S1 draws inspiration from minimalist aesthetics and takes into account practical needs. It features a sleek boxy silhouette and a matte metallic finish, presenting a modern, high tech aesthetic. The front boasts a clean layout that retains only essential status indicators and the brand logo, echoing the low key yet high efficiency design philosophy. Vents on the top optimize airflow, which balances heat dissipation with visual order, achieving a harmonious unity of form and function.

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