en.Wedoany.com Reported - Fluence Energy has added a 10 MWh configuration to its utility-scale battery energy storage system platform Smartstack, extending the product line upward from the original 7.5 MWh option.
This high-density system is designed for developers, utilizing the same electrical architecture and deployment approach as the existing Smartstack series. Through upgrades to the battery enclosure design, Fluence has increased core site-level energy density to approximately 680 MWh per acre, enabling utilities to achieve higher capacity configurations on constrained land parcels. Compared to standard DC modules, this solution can reduce balance-of-plant costs by up to 40%.
The hardware adopts a split architecture, with the skid and battery enclosure designed independently to facilitate transportation and on-site installation. Both capacity versions use standard 3XX Ah batteries, with a maximum DC voltage set at 1500 V and a rated AC voltage of 690 V, but differ in physical dimensions. The 10 MWh version's battery enclosure weighs approximately 20,000 kg, with dimensions of 1764 x 2656 x 2524 mm, and is paired with a 10,000 kg smart skid.
The 7.5 MWh version's battery enclosure weighs 15,000 kg, with dimensions of 1764 x 2656 x 3330 mm, also configured with a 10,000 kg smart skid. In terms of performance parameters, the 10 MWh version has a maximum AC output current of 2508 A, offering discharge duration options of 4, 6, or 8 hours; the 7.5 MWh version has a maximum AC output current of 3762 A, with a discharge duration range extended from 2 to 8 hours.
The balance-of-plant layout for both capacity options is standardized, allowing developers to avoid significant design changes as battery chemistry technology evolves. Fluence fully develops its own operational control software to mitigate geopolitical and supply chain risks. The company employs a regionalized, diversified global supplier base, integrating domestic and international manufacturing resources to form an optimal mix in response to changes in trade and policy environments.
The energy storage system operates on Fluence OS7 software, integrating Modbus, DNP3, and OPC UA communication protocols. For asset management and financial dispatch, the hardware connects to the Fluence Nispera platform for data analysis and interfaces with the Fluence Mosaic quotation optimization platform. Automated control functions support real-time continuous temperature tracking and automatic recalibration of state of charge.
The system adopts a liquid cooling thermal management solution, with the battery enclosure rated at IP55 for protection and offering C3 to C5 chemical and corrosion resistance levels per ISO 12944-6 standards. The product can operate in ambient temperatures ranging from -30°C to +55°C, with the system automatically initiating derating when temperatures exceed 50°C.
In terms of fire safety, the architecture includes isolation containment zones with specific spacing to prevent thermal propagation between enclosures, with relevant designs meeting UL9540, UL9540A, and NFPA standards. Fluence offers a 25-year system life warranty for the hardware and provides a performance structure ensuring plant availability of up to 99%.
This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com
