Huawei Digital Power and Cambodian renewable energy developer SchneiTec have commissioned the country’s first TÜV SÜD-certified grid-forming energy storage system (ESS), marking a milestone in Cambodia’s shift toward more resilient, renewable-based power infrastructure. The newly operational facility provides 12 MWh of storage capacity, including a 2 MWh testbed dedicated to validating Huawei’s Smart String Grid-Forming ESS technology in both off-grid and weak-grid conditions.
The system underwent rigorous joint testing by TÜV SÜD, SchneiTec, and Huawei Digital Power. TÜV SÜD, an internationally recognized body for energy technology certification, assessed key performance metrics such as inertia response, voltage ride-through capability, frequency support, overload handling, and black-start functionality. Results demonstrated an inertia time constant (Tj) ranging from 3 to 20 seconds—exceeding the standard requirement of 3 to 12 seconds—and reliable operation across voltage fluctuations from 5 percent to 130 percent of rated grid voltage. Under short-term overload conditions, the ESS sustained up to 300 percent capacity, effectively dampening low-frequency oscillations in the 0.2 Hz to 5 Hz band. The technology also demonstrated rapid black-start capability, enabling grid restoration after full outages.
This TÜV SÜD certification represents Cambodia’s inaugural grid-forming ESS deployment and the first overseas on-site validation of Huawei’s technology in accordance with international standards—including IEC protocols, China National Standards, the UK Grid Code, and Germany’s VDE regulations. The certified system is expected to support greater integration of variable renewables, stabilize local power networks, and lay the groundwork for future storage capacity expansion and broader energy infrastructure projects.
SchneiTec, which previously developed Cambodia’s largest solar power plant, and Huawei Digital Power will leverage this project as a foundation for scaling up advanced storage solutions in the region. As Cambodia continues its renewable energy roadmap, both companies aim to deliver stable, scalable, and reliable power systems to meet the nation’s growing demand for sustainable electricity.
Source: PR Newswire
