Seplos UltraPower 261kWh Liquid-Cooled High Voltage BESS | 832Vdc Output, IP65 Rating, Smart Thermal Management for Microgrids Industrial Energy Storage

Description:

The Seplos Ultra Power 261: A Next-Generation, All-in-One Liquid-Cooled Energy Storage Solution for a Sustainable Future

In the rapidly evolving landscape of global energy transformation, the Seplos Ultra Power 261 stands as a groundbreaking, all-in-one liquid-cooled Energy Storage System (ESS) engineered to meet the demanding needs of commercial and industrial (C&I) applications, as well as utility-scale battery storage projects. As the world accelerates toward decarbonization and grid modernization, energy storage has emerged as a critical enabler of renewable integration, grid stability, and energy resilience. The Seplos Ultra Power 261 rises to this challenge with a fully integrated, high-efficiency design that combines cutting-edge hardware, intelligent software, and advanced safety systems—delivering a future-ready solution that redefines performance, reliability, and scalability.

At the core of the Ultra Power 261 is a high-capacity 261kWh high-voltage battery pack, meticulously engineered for maximum energy density and long-term durability. This substantial storage capacity makes it ideal for a wide range of applications—from stabilizing industrial power loads and reducing peak demand charges to supporting large-scale renewable energy farms and enabling grid services such as frequency regulation and load shifting. The system’s high-voltage architecture enhances efficiency by reducing current flow and associated resistive losses, resulting in lower energy waste and higher round-trip efficiency—key metrics for maximizing return on investment in energy storage projects.

What truly sets the Seplos Ultra Power 261 apart is its fully integrated system design. Unlike traditional ESS solutions that require separate components for power conversion, battery management, and thermal control, the Ultra Power 261 consolidates all essential elements into a single, compact unit. This includes the battery packs, Power Conversion System (PCS), Battery Management System (BMS), Energy Management System (EMS), and an advanced liquid cooling and fire protection system. This integration not only reduces footprint and simplifies system architecture but also enhances overall reliability by minimizing connection points and potential failure modes.

Thermal management is a critical factor in battery performance and longevity, and the Ultra Power 261 excels in this domain. Equipped with an advanced liquid cooling system, the unit maintains precise temperature control across all battery cells, ensuring a maximum temperature difference of ≤2.5°C. This level of thermal uniformity is essential for preventing hotspots, reducing cell degradation, and extending the overall lifespan of the battery. By maintaining optimal operating temperatures, the system achieves higher cycle efficiency and longer service life—often exceeding 10,000 cycles with minimal capacity fade.

Safety is paramount in large-scale energy storage, and the Ultra Power 261 leaves nothing to chance. The system features a multi-layered safety architecture that includes early thermal runaway detection, real-time gas sensing, and an automatic fire suppression system. Using advanced sensors and algorithms, the BMS continuously monitors cell behavior and environmental conditions, identifying potential anomalies before they escalate. In the event of a thermal event, the system triggers immediate containment protocols, including gas venting and targeted fire suppression, to prevent propagation and protect both personnel and infrastructure. These features make the Ultra Power 261 compliant with the most stringent international safety standards, including UL 9540 and IEC 62619.

The system is designed for maximum flexibility and operational resilience. As a robust high-voltage DC power supply, it seamlessly supports grid-tied, off-grid, and microgrid applications. Whether deployed to stabilize a remote industrial site, support a solar farm during periods of low generation, or participate in Virtual Power Plant (VPP) networks, the Ultra Power 261 delivers consistent, responsive power. Its bidirectional capabilities allow it to charge during off-peak hours and discharge during peak demand, optimizing energy cost savings and enabling participation in energy markets and demand response programs.

To further enhance operational efficiency, the Ultra Power 261 features a factory-prefabricated modular design. Each unit is fully assembled, tested, and certified before shipment, significantly reducing on-site installation time and commissioning complexity. This plug-and-play approach minimizes labor costs, shortens project timelines, and ensures consistent quality across deployments. The modular architecture also allows for easy scalability—systems can be deployed in parallel to meet growing energy demands, making it an ideal solution for both pilot projects and large-scale rollouts.

Intelligent operation is enabled through cloud-based monitoring and AI-driven predictive maintenance. The integrated EMS provides real-time visibility into system performance, energy flow, state of charge, and health diagnostics. Using machine learning algorithms, the system can predict potential component failures, recommend maintenance actions, and optimize charging cycles based on historical usage and weather patterns. This proactive approach reduces unplanned downtime, lowers O&M costs, and maximizes system availability and return on investment.

With its unparalleled combination of performance, safety, and intelligence, the Seplos Ultra Power 261 is not just an energy storage system—it is a strategic asset for businesses, utilities, and communities aiming to build a more sustainable, resilient, and efficient energy future. From reducing carbon emissions to enhancing grid stability and unlocking new revenue streams, the Ultra Power 261 empowers stakeholders to meet their energy goals with confidence and innovation.

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