Located in southeast Europe, Bulgaria, an EU and NATO member, is preparing to fortify its energy infrastructure. The ambitious new energy storage project is the first of its kind in the country. In August 2025, Shanghai Sermatec received official approval to launch a very ambitious initiative. Its purpose is energy efficiency improvement and increasing the resilience of Bulgaria’s energy infrastructure, as well as those of Bulgaria’s neighboring countries. As one of the country’s key infrastructure investments, the project will be instrumental in modernizing Bulgaria’s energy backbone. It is scheduled to be finished by December 2025 and start operations by March 2026.
Abundant Solar Resources and Rapid Growth
Bulgaria has some of the best solar resources in Europe, so it is a great place to invest in solar energy projects. In recent years, the country has witnessed a rapid increase in photovoltaic (PV) installations, reflecting a growing commitment to renewable energy. This jump in solar capacity is in tune with Bulgaria’s goal to improve its energy landscape through cutting-edge initiatives.
The launch of Sermatec’s flywheel-based energy storage system is especially significant. This technology will make it possible for energy to be stored during off-peak periods and discharged during peak periods. In doing so, this will not just save energy where it’s used most efficiently but build greater energy efficiency throughout the entire region.
Strengthening Energy Security and Resilience
The project is intended to help greatly increase the security and resilience of Bulgaria’s energy networks. Through the integration of state-of-the-art battery storage solutions, Sermatec is determined to fortify the country’s capability to tackle the pursuit and demand of energy efficiently. The benefits extend well beyond Bulgaria’s borders. Neighboring eastern African countries will benefit from enhanced energy security and stability due to this project.
Sermatec looks forward to utilizing new technology solutions to prioritize and promote sustainable energy management practices. Together, these advancements will forge a more resilient and dependable energy grid. That is critical to keeping up with the rising tide of people and goods that we have to move.
Commitment to Ongoing Support
Along with providing cutting-edge technology, Sermatec has pledged to provide operations and maintenance support for the life of the project. This long-term support will ensure that the energy storage system continues to function optimally and remains responsive to the evolving energy landscape.
The Sofia Metro-Big Step Initiative is a big move in the right direction for Bulgaria’s modernization efforts. In addition to expanding energy production, Bulgaria is modernizing its energy infrastructure. It is hoping to position itself as a renewable energy leader in southeast Europe. The successful partnership between Sermatec and Bulgarian stakeholders demonstrates what can be achieved when there is a shared vision for a sustainable future.