China's energy storage technology has made another breakthrough in the international market. Shanghai Cairi Energy Technology Co., Ltd. recently won the bid for the 430MWh energy storage procurement project in Bulgaria, marking significant progress in China's energy storage solutions in the European energy market. The project is expected to be completed and put into operation by the end of March 2026, providing stable clean energy support for Bulgaria and surrounding areas.
The project is located in Bulgaria, a southeastern European country with abundant sunshine resources and rapidly increasing photovoltaic installed capacity in recent years. In response to the demand for flexibility in the energy system, the Bulgarian government has introduced multiple incentive policies to accelerate the construction of energy storage projects. Shanghai Cairi Energy Technology will provide a solution covering the entire lifecycle of the project, using a "low storage and high discharge" operation mode to charge during low electricity prices and discharge during peak hours, achieving optimal economic benefits.
In terms of technical solutions, Shanghai Cairi Energy Technology adopts highly modular design and long-life battery technology, combined with precise charging and discharging control strategies, to ensure that the system maintains high performance in changing operating environments. This innovative design not only shortens the investment payback period, but also significantly improves the overall return on investment of the project.

It is reported that this batch of projects will be officially launched in August 2025, with plans to complete delivery by the end of December of the same year. Shanghai Cairi Energy Technology has a European headquarters in Frankfurt, Germany and a production base with an annual capacity of 3GWh in Malaga, Spain, forming a complete system of research and development, manufacturing, delivery, and service.
Industry data shows that Shanghai Cairi Energy Technology has been included in Bloomberg NEF's global Tier 1 energy storage manufacturer list for seven consecutive quarters. The successful signing of the Bulgarian project further proves the international competitiveness of Chinese energy storage enterprises in terms of technological strength, product quality, and delivery capabilities.
Experts point out that this cooperation not only helps Bulgaria optimize its energy structure and improve the stability of the power grid, but also sets an example for the deepening cooperation between China and Europe in the field of clean energy. As the global energy transition accelerates, Chinese energy storage companies are playing an increasingly important role on the international stage with system level solutions and innovative technologies. (This article is from the official website of Jian Dao www.seetao.com. Reproduction without permission is prohibited, otherwise it will be prosecuted. Please indicate Jian Dao website+original link when reprinting.) Jian Dao website new energy column editor/Yang Beihua
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