A Milestone for Clean Energy: Inside Fox ESS’s Next-Gen Phase II Smart Factory

On June 1, the atmosphere in the southeastern port city of Wenzhou, Zhejiang, was charged with excitement. Industry leaders, global partners, and stakeholders gathered to witness a major milestone in the clean energy transition: the official opening ceremony of the Fox ESS Smart Factory, Phase II.

This isn’t just an expansion; it’s a massive leap forward in global production capacity and a testament to the future of intelligent manufacturing.

Here is the story behind this state-of-the-art facility and what it means for the global energy market.

1. The Blueprint for Massive Scale – Fox ESS Smart Factory

Spanning a massive 69 mu (approximately 46,000 m²), the new Phase II site was built with a singular vision: to support large-scale, intelligent manufacturing. Located strategically in Wenzhou, the plant is designed to be the beating heart of Fox ESS’s international growth.

The facility’s primary focus centers on high-tech research, development, and smart manufacturing across:

• PCBA (Printed Circuit Board Assembly)
• Key Commercial and Industrial (C&I) energy storage offerings
• Advanced battery products

With battery energy storage systems serving as the core emphasis of Phase II, this facility is uniquely positioned to drive Fox ESS’s global deployment strategy forward.

2. Speed Meets Precision: The 7-Second Battery Pack

Inside the factory walls, the future of automated manufacturing is already alive. Powered by a highly integrated production system, the Phase II factory has completely reimagined manufacturing efficiency.

In the past, moving from raw materials receiving to line commissioning took 30 minutes. Today, thanks to streamlined logistics and optimized production flows, that time has been slashed to under 5 minutes.

High Automation, Consistent Quality

• The 7-Second Benchmark: The highly automated production lines boast an overall automation level of over 60%, allowing the facility to output a finished battery pack every 7 seconds.
• End-to-End Traceability: Speed means nothing without quality. Fox ESS has implemented a comprehensive, end-to-end product traceability system. This offers complete visibility and control across the entire manufacturing pipeline, ensuring consistent reliability and flawless delivery performance.

3. Walking the Low-Carbon Talk

Fox ESS isn’t just manufacturing solutions for a low-carbon world—they are running their operations on one.

Reflecting their deep commitment to sustainability, the Wenzhou plant utilizes 6,000 kWh of green electricity daily. This eco-friendly footprint supports the company’s ultimate goal: building an efficient, intelligent, and environmentally responsible modern energy storage manufacturing base.

A People-First Workplace culture

Industrial upgrades shouldn’t come at the cost of human connection. Alongside the cutting-edge assembly lines, Fox ESS has invested heavily in creating a vibrant, supportive environment for its employees. The new campus features:

• Basketball courts and an outdoor running track
• Indoor and outdoor fitness areas
• Dedicated study rooms and a calming yoga room