Sonnedix, a global renewable energy company with more than 4 gigawatts in operation, has signed three Power Purchase Agreements with Copec EMOAC (Renewable Energy Management and Supply) for its Librillo project, a 117-megawatt standalone Battery Energy Storage System located in the municipality of Taltal in Chile's Antofagasta Region.

The project carries a five-hour capacity rated at 643.8 megawatt-hours per day and is expected to reach commercial operation in April 2027.

Project Structure and Energy Delivery Model

The Sonnedix Librillo project is structured as a standalone BESS, meaning it operates independently of a co-located generation asset while still serving to manage and dispatch renewable energy.

The system will enable nighttime energy delivery by storing solar-generated power during daylight hours and releasing it after sundown, directly addressing the variability that has historically constrained solar integration in Chile's northern grid.

Supply under the PPAs will be delivered at the Francisco node in the north of the country. The three agreements collectively allow Copec EMOAC to incorporate nighttime energy into its portfolio through the discharge of the BESS developed and built by Sonnedix.

According to both companies, the arrangement is designed to provide a competitive, flexible, and resilient energy supply to Copec EMOAC's client base while contributing to the decarbonization of Chile's electricity system.

Strategic Significance for Chile's Storage Market

The agreements have been described by both parties as a meaningful step in the consolidation of long-term contracts linked to renewable energy and storage in Chile.

The country's northern grid, which hosts an extensive concentration of solar generation capacity, has faced persistent challenges related to curtailment and the mismatch between peak solar production and peak demand periods.

A high-capacity dispatchable storage system at the Francisco node is intended to address both issues by optimizing solar energy management and mitigating its variability. Axel Thiemann, Chief Executive Officer of Sonnedix, said the signing represents a major milestone in the company's global storage strategy.

"The Sonnedix Librillo BESS project demonstrates how we transform renewable energy into a reliable and dispatchable source, adding flexibility to Chile's electricity system while creating long-term value for our customers," Thiemann said.

Vannia Toro, General Manager of Copec EMOAC, said the agreements drive the development of storage within Chile's electricity system by improving renewable energy management and increasing flexibility.

"The integration of nighttime energy through BESS optimizes the use of clean generation and strengthens supply security and competitiveness," Toro said. "At Copec EMOAC, we are committed to continuing the promotion of partnerships that contribute to a more resilient, efficient, and sustainable energy matrix for the country."

Sonnedix's Position in Chile

Sonnedix Chile began operations in 2015 and has grown to hold 1 gigawatt of operating capacity spread across 40 renewable energy projects in the country.

The company currently has 117 megawatts under construction in Chile, which corresponds to the Librillo project itself, and maintains a development pipeline exceeding 1.8 gigawatts in the Chilean market.

The Librillo signing reinforces Sonnedix's stated positioning as a provider of hybrid and storage solutions in addition to its established solar generation business.

The company has identified storage and hybrid assets as essential tools for maximizing the value of renewable generation, stabilizing grid operations, and reducing curtailment across the markets in which it operates.

Copec EMOAC's Role in the Agreement

Copec EMOAC is a subsidiary of Copec focused on renewable energy supply, serving a diverse client portfolio across Chile. The company's offering extends beyond electricity supply to include specialized advisory services, carbon footprint measurement, and water management, positioning it as a broader sustainability partner for industrial and commercial customers.

Through the Librillo PPAs, the company adds a dispatchable nighttime energy product to its portfolio without needing to develop or own the underlying storage infrastructure directly.

Sonnedix's Global Context

Globally, Sonnedix operates across Chile, France, Germany, Italy, Japan, Poland, Portugal, Spain, and the United Kingdom. The company reports a total portfolio capacity of 12 gigawatts, including more than 1 gigawatt under construction, 4 gigawatts in operation, and a development pipeline of 6 gigawatts.

The Librillo project sits within a broader corporate push into storage and hybrid assets intended to complement the company's existing solar and wind holdings and address growing customer demand for dispatchable clean power.

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