Sungrow (globally leading manufacturer of clean energy equipment) and Sonnedix (Independent Power Producer) have entered into a supply agreement for a 643.8 MWh standalone battery energy storage system (BESS) project in Chile, marking the first storage collaboration between the two companies after years of partnership on solar developments.

Deal Details and Equipment Scope

Announced in Madrid, the agreement covers the supply of Sungrow's PowerTitan 2.0 solution for the Sonnedix Librillo BESS Project in Chile. Under the terms of the deal, Sungrow will provide 128 units of its PowerTitan 2.0 liquid-cooled system along with 32 medium-voltage cells for the standalone project. The system is designed as a 5-hour energy storage solution, with delivery and installation scheduled for the first quarter of 2027.

The PowerTitan 2.0 technology is described as engineered to maximize operational flexibility, enabling night-time power supply and supporting the integration of clean energy into Chile's grid.

First Storage Agreement Between the Two Companies

Jorge Amiano, Chief Engineering Officer at Sonnedix, described the Librillo project as the first agreement of its kind between the two organizations, despite the companies having worked together on multiple solar projects over the years.

"Sungrow has partnered with us on numerous solar projects over the years. We are now delighted to extend this collaboration to battery energy storage with the Sonnedix Librillo BESS project in Chile," Amiano said.

"Sungrow's global presence and technical expertise make it the ideal partner to further expand our storage capabilities and continue delivering reliable and sustainable energy solutions."

Javier Blanco, Country Manager for Spain and Portugal at Sungrow Europe, characterized the project as an important milestone for energy storage development in Chile.

"The Librillo Project represents an important milestone for the development of energy storage in Chile and reflects the growing need for flexible and reliable solutions to support the country's energy transition," Blanco said. He added that Sonnedix's selection of Sungrow was driven by the competitiveness, safety, and high performance of the PowerTitan product line.

Sonnedix's Footprint in Chile

Sonnedix has been active in Chile since 2015 and has grown to hold an operational capacity of 1 GW across 40 renewable energy projects in the country. The company also has 117 MW currently under construction in Chile, alongside a development pipeline exceeding 1.8 GW.

The Librillo BESS project fits within Sonnedix's broader strategy to scale battery storage solutions that complement its existing renewable assets. Globally, Sonnedix holds a total portfolio of 12 GW, made up of more than 1 GW under construction, 4 GW in operation, and a 6 GW development pipeline. The company operates across Chile, France, Germany, Italy, Japan, Poland, Portugal, Spain, and the United Kingdom.

Sungrow's Market Position and Technology Credentials

Sungrow describes itself as having installed 1,000 GW of power electronic converters worldwide as of December 2025, across a history spanning more than 29 years in the renewable energy technology sector.

The company has been recognized by BloombergNEF as the world's most bankable supplier of energy storage systems and power conversion systems for the sixth consecutive time. Sungrow operates a network of over 520 service points globally.

Strategic Context for Chile's Energy Transition

The Librillo project is being presented by both companies as a contribution to Chile's broader energy transition. Blanco noted that the project would help reinforce a more resilient and sustainable electricity system in the long term, while Amiano emphasized that the storage solution would contribute to a more efficient and sustainable energy system overall.

The agreement positions the standalone BESS project as one of the larger utility-scale battery storage deployments tied to Chile's renewable energy sector, with Sonnedix's existing 1 GW operational base in the country providing the backdrop against which the storage expansion is being pursued.

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