Sigenergy presents groundbreaking energy technology in Burgas!

Sigenergy presents groundbreaking energy technology in Burgas!

A significant meeting of nearly 300 global energy experts hosted by Sigenergy to explore the future of commercial and industrial (C&I) energy storage took place in Burgas on June 3, 2025. A highlight of the event was a visit to a 20 MWh project in Malko Tarnovo powered by Sigenergy's modular C&I battery storage system (BESS). This project impressively demonstrates the scalability and practical application of the next generation of storage technology.

Sigenergy, in collaboration with Trakia MT Ltd, a leading Bulgarian solar company, has installed an advanced energy storage system based on a solar farm. It consists of 90 Sigenergy C&I hybrid inverters and the SigenStack modular storage solution, which represents an innovative method of energy storage. According to ots.at, Tony Xu, founder and CEO of Sigenergy, emphasized the role of this project in promoting the transition to clean energy.

Innovations in energy storage

SigenStack offers a modular approach to energy storage that replaces bulky container systems with stackable 12 kWh battery packs. This design innovation enables rapid installation: the 20 MWh system was installed in just 10 days and commissioned within 2 days. Galina Peycheva-Miteva from Trakia MT Ltd. highlighted the smooth installation of the modular design, providing significant efficiency and scheduling benefits.

In addition to the practical aspects, Sigenergy sets new safety standards with its C&I BESS solutions. The SigenStack system includes six layers of protection per 12 kWh battery pack, including temperature sensors, internal fire suppression systems, airgel insulation and smoke detectors. These advanced safety features ensure a high speed of response to thermal transients, which is notable compared to traditional systems that can respond more slowly. There is also efficient protection against reverse currents and modern AFCI technology for fault detection, which represents a significant advance in safety.

Sustainability and efficiency

SigenStack's modular structure allows for flexible configuration for megawatt-scale projects by connecting multiple stacks and inverters together. This technology not only supports integrated control and increased efficiency, but also reduces costs by avoiding oversized systems. According to sigenergy.com, system maintenance is made significantly easier with real-time monitoring via a cloud-based platform, minimizing the need for on-site inspections.

Another pioneering feature is the system's ability to individually replace defective batteries within two hours without the need for full system diagnostics. Additionally, Sigenergy has published a C&I Safety White Paper in collaboration with Intertek that confirms compliance with national and international safety standards, including UL 9540A and IEC 62619.

The coming years will be crucial for the further development of energy storage solutions. Batteries, according to research at jkess.com, will increasingly rely on lithium-ion technology, which holds the largest market share due to its high energy density and efficiency. Sigenergy intends to expand its global presence by introducing safe, efficient and sustainable energy solutions that support the use of renewable energy sources and contribute to reducing the carbon footprint.