SINEXCEL (300693.SZ) has shipped all StellaON 1250K power conversion systems for RelyEZ Energy Storage Technology Co., Ltd.'s 100 MW/400 MWh battery energy storage project in Chile, the company announced on Oct. 13, 2026.

The project, located in the Atacama region, uses a four-hour storage configuration that will charge during lower-demand periods and discharge at peak times, supporting grid flexibility and project returns.

On-Schedule Delivery Supports Project Execution

According to the company, large-scale overseas projects require production, inspection, and shipment schedules to remain closely aligned with on-site construction. SINEXCEL completed the full PCS order on schedule, which it says helps RelyEZ Energy protect the timetable for transport, installation, commissioning, and grid connection.

For a project of this scale, delays in a single batch can narrow the construction window. Coordinated delivery reduces uncertainty and helps local teams plan the next stages, the company stated.

StellaON 1250K PCS Built for Atacama's Demanding Conditions

Energy equipment in the Atacama must operate in an environment that can include high temperatures, dust, and sand. The StellaON 1250K PCS has a maximum efficiency of 99 percent and a rated-power efficiency of 98.5 percent. It supports operation from -40°C to 60°C, maintains full power output at 55°C, and carries an IP65 protection rating.

Maintaining rated output in high temperatures can reduce power derating and the need for additional capacity, according to SINEXCEL. Higher conversion efficiency also limits energy losses across repeated charge-discharge cycles, supporting stable operation and long-term returns.

Strengthening Local Service Capabilities Across the Americas

Following shipment, the project will move into on-site installation and commissioning. SINEXCEL has a dedicated after-sales team in Latin America and seven service centres across the Americas. Technical requests can receive a response within 30 minutes, backed by round-the-clock support and a seven-day spare-parts guarantee.

The company has deployed more than 17 GW of energy storage capacity across over 5,000 projects and works with more than 600 partners in 60-plus countries and regions. SINEXCEL will continue to expand its local operations across Latin America, providing customers with support throughout the project lifecycle.

About SINEXCEL

Founded in 2007, SINEXCEL describes itself as a pioneer in energy storage, EV charging, and power quality solutions. Beyond its 17 GW of installed storage, the company reports 200,000 EV DC chargers and nearly 20 million amperes of active harmonic filters deployed.

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