12 Jul 2024
In June 2024, the 25 MW / 55 MWh utility-scale battery energy storage system (BESS) located in Razlog Municipality, Southwestern Bulgaria commenced commercial operations. This significant milestone marks the system as Bulgaria's largest BESS project to date, jointly developed by Kehua and Solarpro, the largest energy EPC company in Eastern Europe and a leading technological provider of solutions for the generation and storage of energy within Europe. Solarpro managed the entire project lifecycle – from initial design through to implementation and integration of the SCADA management system, underscoring their commitment to advancing high-impact renewable energy solutions in the region.
Project Overview
The project is co-located to a 33 MWp PV plant, this hybrid solar plus storage project is seamlessly integrated into the transmission system operator (TSO) grid. Kehua, as a world-leading energy storage solutions provider, supplied the 1500Vdc PCS and MV transformer integrated solution. This solution is designed to adapt to extreme environments, such as high temperature, salt, and extreme cold, with comprehensive cell status monitoring and multi-level fire protection. It can be applied in various applications, such as peak shaving, frequency modulation, and auxiliary grid connection for new energy systems.
Solarpro plans to replicate the success of the Razlog project, leveraging their expertise to advance the integration of cutting-edge, high-reliability energy storage solutions across its Eastern European portfolio. The Razlog BESS project sets a precedent for the future of the renewable energy sector in the region and highlights the key role that Kehua's top-of-the-line PCS innovations and Solarpro’s proficiency in hybrid energy projects can play in enabling the smooth integration of solar power and energy storage.
Industry Impact and Future Prospects
Through collaborative efforts from industry leaders like Solarpro and Kehua, this project is an important step towards a more sustainable and resilient energy infrastructure. As the world's leading energy storage provider, Kehua will continue to demonstrate its expertise in achieving sustainable energy transition and grid modernization programs to drive the energy transition and combat climate change.
The successful implementation of this utility-scale BESS also exemplifies Kehua's commitment to providing advanced power solutions that facilitate the seamless integration of renewable energy with the existing grid. As a Tier 1 energy storage supplier globally, Kehua continues to showcase its expertise in enabling sustainable energy transition and grid modernization initiatives.The deployment of this cutting-edge BESS in Razlog represents a significant step forward for Bulgaria and the broader Eastern European region in achieving more sustainable and resilient energy infrastructure.
About Kehua
Based on 36 years of experience in power electronic technology, Kehua has diversified solutions and rich project experience in the fields of photovoltaic, energy storage, micro-grids and integrated energy services. By the end of 2023, Kehua’s PV installation has exceeded 46GW and its energy storage installation has exceeded 15.2GW/8.2GWh globally. Presently, Kehua has become the world's fourth largest PCS supplier (S&P Global), a Tier 1 energy storage supplier and Top 10 solar inverter manufacturers (BloombergNEF). Going forward, Kehua will continue to be a reliable PV and ESS expert, create clean energy, and dedicated to enabling a zero-carbon lifestyle for people worldwide.
About Solarpro
Solarpro is a multi-technology integrator with expertise in hybrid projects that include photovoltaic (PV), wind, battery energy storage systems (BESS), and hydrogen solutions. As a leading EPC contractor with 15 years of experience and a team of over 1,000 professionals, Solarpro has designed, built, and integrated PV plants with a total capacity exceeding 7 GW. The company is a technological innovator, excelling in engineering and digitalizing renewable projects, transforming them into dispatchable and flexible assets aligned with energy market developments. Committed to sustainability, Solarpro has further developed expertise in recycling PV modules and batteries to utilize damaged or polluted land, transforming them into state-of-the-art clean energy plants.