Hoymiles has launched two new containerized battery energy storage systems HOYDC under its Storage next portfolio. The new solutions are designed for utility-scale and commercial energy storage projects, with a focus on efficient deployment, operational flexibility, and system reliability.
The company said in a press release that its HOYAC 6.25 MWh model is intended for projects where rapid and simplified deployment is a priority. Its compact containerized design is aimed at reducing installation time and on-site complexity, making it suitable for utility-scale projects requiring faster commissioning.
The system uses liquid-cooling technology to maintain stable thermal conditions and consistent performance during demanding operating cycles. It also combines high energy density with a compact footprint to optimize space utilization.
HOYAC has a modular design that allows capacity expansion as energy requirements increase. Maintenance is supported through a hot-swappable configuration, enabling component replacement without shutting down the system, which can help reduce downtime. The system also includes multi-layer protection features intended to support operational reliability in large-scale energy storage applications.
HOYDC Offers 5MWh / 6.25MWh Intelligent & Flexible Storage
The HOYDC series is designed with a greater emphasis on operational flexibility, system intelligence, and resilience. Available in 5 MWh and 6.25 MWh configurations, the system is intended to support a broader range of project applications.
The series incorporates a multi-layer safety framework with early fault detection capabilities to improve reliability and reduce operational risks. It is also designed for operation across varying environmental conditions.
HOYDC includes smart management functions such as predictive analytics and real-time monitoring, allowing operators to track performance and plan maintenance more effectively. Its expandable architecture is designed to support future capacity additions as project requirements evolve.
While both systems are based on Hoymiles’ broader engineering platform, HOYAC is positioned toward deployment efficiency, whereas HOYDC focuses more on operational intelligence and resilience. Together, the two products form the company’s containerized energy storage offering for utility-scale and commercial applications.
Hoymiles also highlighted its Power Conversion System (PCS) as a key component of the Storage next ecosystem. The HPCS3500-E/1725-E/1250-E series is designed to support energy conversion across utility-scale and commercial projects. According to the company, the system supports up to 1500V full power output and conversion efficiency of over 99%, aimed at reducing energy losses during operation.
High-Speed Response and Grid Support
The PCS features a dynamic response time of less than 20 milliseconds, enabling faster transitions between operating modes during fluctuating load conditions. The system is also grid-forming ready, making it suitable for applications such as microgrids and islanded systems that require stable grid support.
Flexible Integration Across Applications
The HPCS3500-E/1725-E/1250-E series supports on-grid, off-grid, and hybrid operating configurations, allowing integration across different energy infrastructures. It is also compatible with Virtual Synchronous Generator (VSG) functionality, which can support voltage and frequency regulation in renewable energy-heavy grids.
Designed for Harsh Operating Conditions
The PCS includes an IP65-rated enclosure for protection against dust and water ingress. The system also incorporates an anti-corrosion design intended for outdoor and industrial operating environments.
Safety and Protection Features
According to Hoymiles, the PCS integrates multi-layer protection mechanisms and has a short-circuit tolerance of up to 250 kA to support operational continuity during fault conditions.
Deployment and System Management
The company said the system architecture is designed to simplify installation and integration processes. It also includes intelligent control functions for monitoring, real-time performance management, and system optimization.
According to Hoymiles, the HPCS3500-E/1725-E/1250-E series is built to support utility-scale energy storage and grid applications with high efficiency, flexible integration, and advanced protection features. The company said the system is designed to simplify deployment while improving real-time monitoring, performance management, and overall operational stability.
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