Energy storage company Fluence Energy has announced a new high-density, AC-based energy storage system (ESS) called Smartstack.
The Siemens- and AES-owned company said the design will be modular, allowing all parts to be delivered separately and assembled on-site rather than being “another 20ft container”.
The ESS will include a base platform to house “the brains of the platform” as well as four battery modules, which it said can take cells from multiple vendors.
The company said the BESS will use lithium-ferro-phosphate (LFP) chemistry.
The modular design allows its customers to choose components sourced or manufactured locally, which it said makes it more agile and cost effective.
This includes architecture that can be adapted for different durations such as two-hour and four-hour versions for short-term durations, or six-hour and eight-hour versions for longer durations, it said.
It said the ESS can deliver 7.5MWh of energy using proven, 3XX battery cells and integrating 300Ah generation batteries. Onsite real-time monitoring and optimisation can be used for cybersecurity, predictive maintenance and safety features, it said. The system will be made available by the end of 2025.
Julian Nebreda, Fluence president and CEO, said: “By addressing critical challenges like supply chain shipping constraints, product density, serviceability and modularity, we are delivering a platform that is more scalable and easier to operate than competing solutions. This translates to superior project economics for our customers.”
