Fluence Energy, Inc., a global leader in energy storage solutions, has commenced manufacturing its next-generation Smartstack™ platform at a state-of-the-art, fully automated contract facility in Vietnam.
The launch marks a major milestone in scaling high-density, modular, AC-based energy storage systems to meet soaring global demand. With a projected annual capacity of 35 GWh, the facility features advanced automation to enhance productivity, safety, and quality assurance.
Unveiled in February 2025, Smartstack™ delivers 30% higher energy density compared to leading AC-based solutions. Its patent-pending modular design enables easier transport, faster installation, and maximized project site density — making constrained sites viable for deployment.
Peter Williams, Chief Product and Supply Chain Officer at Fluence, said:
“The start of Smartstack manufacturing is the tangible realization of our commitment to innovation. It positions us to deliver with speed and scale while maintaining uncompromising safety, performance, and reliability.”
To strengthen customer confidence, Smartstack is backed by Fluence Smart Service Plans, which include:
- Up to 99% Availability Guarantee
- Industry-first Dispatchable Energy Guarantee for 24/7 availability
- 25-year Energy Capacity & Round-Trip Efficiency Guarantees
Customer deliveries are slated to begin in Q4 2025, underscoring Fluence’s role in building a more resilient, renewable-powered grid.






