Hoymiles Unveils Strategic 460kW and 1725kW PCS Solutions at ESIE 2026

From Microinverters to Full-Scale System Solutions

The launch underscores Hoymiles’ ongoing strategic evolution from an expert in microinverters to a comprehensive provider of solar and storage solutions, building on its 14 years of power electronics expertise.

"The energy storage industry is shifting from policy-driven growth to market-driven value creation," said Hoymiles CEO Dr. Yang Bo, during the opening speech. "Competition is no longer about standalone equipment; it is about full-scenario solutions and lifecycle value. Hoymiles proactively responds to this challenge by upgrading our technology and global service ecosystem."

Technical Breakthroughs: Precision and Stability

The two new products address critical pain points in the industry, including system compatibility, thermal management, and grid stability.

1. The 460kW High-Flexibility String PCS

Designed to eliminate the "single point of failure" risk common in traditional centralized power plants, the 460kW string PCS offers seamless integration with both string PCS-MV station and AC-block container.

• Thermal Efficiency: Utilizing advanced liquid cooling technology, the string PCS maintains full-load operation even with water temperatures at 60°C. Internal temperature variance is kept within 2°C, extending the lifespan of core components by over 20%.

• Peak Performance: Featuring a three-level topology and hybrid Silicon Carbide (SiC) modules, the PCS achieves a peak efficiency of over 99%, increasing annualized returns by an estimated 1.5%.

2. The 1725kW Grid-Forming PCS

With power grids increasingly strained by large-scale renewable integration, the 1725kW PCS is engineered to provide robust grid-forming support with industry-leading resilience.

• Minimized Derating for Less Footprint: Compared to traditional 1250kW grid-forming solutions, the high-power 1725kW PCS significantly reduces power derating. This allows project developers to achieve the same total capacity with fewer units, resulting in 30% less system footprint.

• Active Power & Frequency Support: The unit delivers an ultra-fast response, with active power startup in just 5ms and a total response time under 100ms, effectively mitigating frequency fluctuations.

• Black Start & Off-Grid Synergy: Equipped with black start capability, the system can reboot the grid independently. It supports multi-PCS parallel control in off-grid mode and features sophisticated inrush current control for transformers and line impedance.

  
  

Strengthening Global Standards

Following the product reveal, Hoymiles signed a strategic cooperation agreement with TÜV SÜD. The partnership focuses on the testing and certification of grid-forming energy storage products, research into standard systems, and global market access. This collaboration aims to elevate safety and compliance standards for the energy storage industry worldwide.

About Hoymiles

Established in 2012, Hoymiles is a global MLPE and energy storage solution provider, specializing in module-level inverters and storage systems. With a vision of a clean, sustainable future, Hoymiles strives to lead the smart energy industry through high-efficiency, reliable, and user-friendly technology.