From ESS News
Taiwanese electronics giant Foxconn has entered the global energy storage market with its new Fox EnerStor brand, positioning itself to challenge established players such as CATL, BYD, and Tesla.
The brand – unveiled on Oct. 21 at an event in Zhengzhou, China – marks a key milestone in Foxconn’s “3+3+3” strategic roadmap and underscores the company’s ambition to build a vertically integrated, globally competitive energy storage business.
Foxconn is leveraging its strengths in precision manufacturing, supply chain management, and global industrial deployment to create a full-lifecycle energy storage platform. The business is anchored by an R&D center in Shanghai, a pilot facility in Wuhan, and a large-scale manufacturing and operations hub in Zhengzhou.
According to company executives, Fox EnerStor will offer integrated energy storage solutions spanning residential, commercial and industrial (C&I), and utility-scale applications. Across all formats, Foxconn emphasizes long service life, high efficiency, reliability, and safety as the brand’s key differentiators.
The all-in-one 261 kW / 522 kWh C&I system features a low center-of-gravity design and an optimized thermal architecture, delivering a reported roundtrip efficiency of 91%. With a compact footprint of just 1.38 square meters and international certifications already secured, the system is designed for medium-scale commercial customers.
The 4.32 MWh distributed string system employs a “one-cluster-one-management” architecture, with each battery cluster equipped with an independent power conversion system (PCS) and customized thermal management that keeps temperature differentials below 2.5°C. Each cluster is physically isolated and features standalone pack-level fire protection, which the company highlights as essential for risk mitigation. The modular design is aimed at mid- to large-scale commercial users seeking flexible deployment options.
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