Sungrow and Sonnedix have signed an agreement for the supply of 643.8 MWh of energy storage for the standalone Librillo BESS project in Chile. The initiative will incorporate Sungrow’s PowerTitan 2.0 technology and is scheduled for delivery and installation during the first quarter of 2027.
Librillo BESS to Drive Energy Storage in Chile
The agreement represents a new milestone for the Chilean energy storage market, which continues to expand its capacity to integrate a greater share of renewable generation. The Librillo BESS project will feature a five-hour storage system designed to provide operational flexibility and improve electrical system stability.
For its development, Sungrow will supply 128 units of its liquid-cooled PowerTitan 2.0 system along with 32 medium-voltage cells. The solution will enable the storage of surplus renewable energy and its delivery during peak demand periods or when solar generation decreases.
A Collaboration Extending to Battery Storage
The relationship between both companies has been consolidated over the years through solar projects. With Librillo BESS, Sungrow and Sonnedix are expanding their cooperation into the battery energy storage segment, considered one of the pillars for accelerating the energy transition.
Jorge Amiano, Chief Engineering Officer at Sonnedix, emphasized that Sungrow’s technical expertise and international presence were determining factors in advancing this first joint energy storage project.
Likewise, the initiative responds to Sonnedix’s strategy of complementing its renewable assets through solutions that increase energy system efficiency and promote greater clean energy penetration.
PowerTitan Technology to Enhance Grid Flexibility
The technology selected for Librillo BESS has been developed to deliver high levels of safety, performance, and long-term profitability. Thanks to its liquid-cooled configuration, the system optimizes battery operating conditions and contributes to maximizing installation availability.
Additionally, the storage capacity will enable energy shifting to nighttime hours, facilitating more efficient management of renewable resources and strengthening the reliability of the Chilean electrical grid.
According to Javier Blanco, Country Manager for Spain and Portugal at Sungrow Europe, the growing demand for BESS systems reflects the need for flexible solutions that support the country’s energy transformation and strengthen electrical system resilience.
Sonnedix and Sungrow Strengthen Their International Presence
Sonnedix maintains a prominent position within the global renewable sector with a total portfolio approaching 12 GW, comprising solar, wind, and storage assets distributed across various international markets. In Chile, the company currently operates 1 GW distributed across 40 renewable projects, in addition to assets under construction and an extensive development portfolio.
For its part, Sungrow has accumulated over 29 years of experience in renewable energy technologies and reached 1,000 GW of power electronic converters installed worldwide by the end of 2025. The company is recognized by BloombergNEF as one of the most bankable suppliers in the energy storage and power conversion sector.
With this agreement, both companies reinforce their commitment to large-scale energy storage and to the development of infrastructure that facilitates the integration of renewable energies into the electrical systems of the future.
Source and photo: Sonnedix