#Bulgaria #Energy Storage #Sigenergy #Burgas #Modular CI

Sigenergy's 20 MWh Modular CI Solution: A New Era in Energy Storage

In a groundbreaking event held in Burgas, Bulgaria, nearly 300 esteemed professionals in the energy sector gathered to witness the unveiling of Sigenergy's state-of-the-art Modular CI energy storage system. This 20 MWh solution marks a significant leap forward in the realm of commercial and industrial energy storage, showcasing scalability and high performance in energy management.

A Historic Project

The highlight of the event was a visit to a pivotal project located in Malko Tarnovo, where Sigenergy's Battery Energy Storage System (BESS) was implemented in collaboration with Trakia MT Ltd., a leading Bulgarian solar energy company. This innovative system integrates 90 hybrid inverters with Sigenergy's modular SigenStack storage technology, introducing a new paradigm for energy storage solutions.

Tony Xu, the CEO and founder of Sigenergy, emphasized the company's mission: "Sigenergy aims to accelerate the global transition towards clean energy through innovative and scalable storage solutions. This project exemplifies how advanced battery systems can drive business growth and decarbonization across various sectors."

Modular Design: A Game Changer

The introduction of SigenStack revolutionizes the energy storage landscape by offering a truly modular approach tailored for commercial applications. Traditional bulky container systems are replaced with stackable 12 kWh battery packs. With ready-to-use connectors and tool-free installation, Sigenergy’s design simplifies setup, eliminating the need for complex cabling, cranes, and heavy machinery. Remarkably, the entire 20 MWh system was installed in just 10 days and commissioned in a mere two days.

Galina Peycheva-Miteva, the owner of Trakia MT Ltd., highlighted the swift installation process, stating, "The setup was seamless, akin to building with construction blocks rather than deploying industrial infrastructure. This modular design is a true breakthrough for the CI energy storage sector."

Enhanced Safety Features

Sigenergy’s CI BESS sets new standards for safety protocols in energy storage systems. At the core of this innovation lies the SigenStack system, designed to ensure safety at every level. Each 12 kWh battery incorporates multiple protective layers, including temperature sensors, internal fire extinguishing systems, aerogel insulation, pressure relief valves, high-temperature insulating mats, and smoke detectors. These features enable early detection of thermal runaway at the pack level, prompting rapid localized responses within seconds.

In contrast, traditional cabinet-style systems often lack compartments and can take over a minute to react, raising fire spread risks. By isolating incidents at the module level, SigenStack significantly enhances system reliability and operational safety.

The advanced inverter platform includes ultra-fast anti-backflow protection at 500 ms and long-range Arc Fault Circuit Interrupter (AFCI) technology capable of detecting faults from up to 500 meters away. To validate its safety performance, Sigenergy collaborated with Intertek, a global assurance provider, publishing a CI Safety White Paper that attests full compliance with UL 9540A and IEC 62619 standards. Testing revealed structural stability under extreme conditions and sustained operational efficiency exceeding 95%.

Zero-Maintenance Resilience

Built upon robust safety and modular design, Sigenergy's CI BESS offers uninterrupted operation 24/7. Boasting an IP66 rating for dust and water resistance, it delivers reliable performance across varied environmental conditions. Unlike conventional cabinet systems prone to component vulnerabilities, requiring monthly inspections, semi-annual part replacements, and annual full maintenance, the Sigenergy system drastically reduces these demands.

Real-time monitoring via a cloud-based platform provides comprehensive visibility into system status, energy flow, and alarms, significantly diminishing on-site inspection requirements. Maintenance is also streamlined: defective batteries can be replaced individually within two hours, without extensive system diagnosis or technician presence, minimizing downtime and logistical complexities.

The success of this project showcases Sigenergy's excellence in installation speed, safety, operational reliability, and smart management. Looking ahead, Sigenergy is committed to expanding its global footprint and promoting the adoption of safer, more efficient, and sustainable energy solutions worldwide.

Conclusion

The advent of the 20 MWh Modular CI energy storage by Sigenergy not only represents a significant technological advancement but also a commitment to fostering a cleaner energy future. By prioritizing safety, modularity, and efficiency, Sigenergy is paving the way for widespread adoption of modern energy storage solutions in various sectors.