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Fluence Unveils Smartstack, a High-Density AC-based Energy Storage Platform with a Breakthrough Modular Design

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Fluence
Fluence

Backed by Fluence’s industry-leading project deployment expertise, Smartstack delivers advanced intelligence, approximately 30% higher energy density compared to other leading market solutions, and drives enhanced overall project economics

ARLINGTON, Va., Feb. 13, 2025 (GLOBE NEWSWIRE) -- Fluence Energy, Inc. ("Fluence") (NASDAQ: FLNC), a global market leader delivering intelligent energy storage, services, and asset optimization software, today announced Smartstack™, a high-density, AC-based energy storage platform, now commercially available for grid-scale applications worldwide with customer deliveries scheduled to begin in the last quarter of 2025. Combining smart performance, predictive servicing, top safety levels, and a future-ready modular design, Smartstack addresses critical industry challenges brought on by unprecedented growth and demand including performance, transportation logistics constraints, and land use.

Fluence Smartstack
Fluence Smartstack


Smartstack’s patent-pending design strategically splits battery storage systems into units with easily transportable weight and dimensions, reducing shipping constraints and installation complexity. Onsite, the system maximizes project site density, delivering up to 7.5 MWh energy density when integrating three hundred Amperes hour (Ah) generation batteries. This density is approximately 30% higher than currently available AC-based systems. The platform enables more MWh generation within existing project footprints, reducing costs and making previously constrained sites viable for storage project development.

Smartstack reimagines energy storage design through a flexible modular architecture that can be tailored for varying market needs. 2-hr and 4-hr storage durations as well as longer 6-hr and 8-hr durations are all available for sale now. The market urgently needs systems that can scale quickly and affordably while maximizing availability during peak demand events. The product’s proprietary form factor includes two key components:

  • Smart Skid – A base platform that houses the brains of the Smartstack system. The Smart Skid integrates advanced cooling equipment, power control system hardware, all cabling, and comprehensive monitoring capabilities with convenient maintenance access.

  • Pods – Smartstack battery pods sit atop the Smart Skid and contain the system’s battery cells. Pods support cells from multiple vendors, assuring the most competitive pricing and top performance. The pods are also designed to be swapped with replacement units during maintenance or technology upgrades to maximize system availability.