Five Technology Breakthroughs: Huawei Launches the Next-Generation Grid-Forming ESS Platform LUTERRA™

At Intersolar Europe 2026, Huawei made a significant announcement regarding its evolution in energy storage solutions. During the 2026 Huawei FusionSolar Strategy & New Product Launch, which took place in Munich, the company revealed the official upgrade of its Energy Storage System (ESS) solution brand from LUNA to LUTERRA. Alongside this rebranding, Huawei introduced the next-generation Smart String Grid-Forming ESS Platform known as LUTERRA. This platform is designed to support a 1000 V AC voltage and offers the industry’s optimal array capacity of 12.5 MW/50 MWh.

The launch was part of Huawei's broader strategy aimed at enhancing the integration of renewable energy into existing power grids. Steven Zhou, President of Smart PV & ESS Product Line at Huawei Digital Power, emphasized the importance of evolving photovoltaic (PV) and ESS products into grid-supporting assets. He highlighted the necessity of future-proof flexibility, grid-forming capability, and intelligence in these products. According to Zhou, Huawei continues to invest heavily in research related to power electronics and digital technologies, aiming to develop industry-leading competencies in grid-forming, artificial intelligence (AI), and full-lifecycle safety and reliability. These advancements are intended to provide comprehensive Smart PV and ESS solutions that maximize customer value while reinforcing grid stability in regions with high renewable energy penetration.

Steve Zheng, President of Smart ESS Business at Huawei Digital Power, presented the LUTERRA platform under the title “E-volving for Higher Returns.” He described LUTERRA as a significant advancement in achieving maximum energy density from a single cabinet to large-scale arrays. The platform is characterized by four core values: optimal investment, higher returns, plant-level grid forming, and C2G safety. These attributes make LUTERRA an attractive option for customers seeking to construct ESSs for new power systems.

LUTERRA introduces five groundbreaking technological innovations within power electronics and architectural design. The first innovation involves a pioneering 1000 V AC smart string architecture that enhances battery consistency. Additionally, the latest Huawei 1000 V AC Silicon Carbide (SiC) modules have notably improved conversion efficiency. Another key feature is the pioneering through-busbar architecture, which simplifies installation, capacity expansion, and cable connections, thus expediting project delivery and conserving land resources. Furthermore, the introduction of a smart distributed cooling system increases the heat dissipation area by 100 percent, allowing for reduced fan speeds and a decrease in noise levels by approximately 40 percent. Lastly, LUTERRA boasts leading plant-level grid-forming capabilities, enabling synchronous grid forming for tens of millions of devices and self-adjustment to variations in grid strength.

The LUTERRA platform is built upon a unique digital twin platform and incorporates advanced digital and AI technologies. These elements contribute to more precise State of Energy (SOE) and State of Power (SOP) predictions, providing dependable digital support for power trading and significantly boosting the full-life cycle returns of energy storage systems. Designed to empower the future of energy transition, LUTERRA emphasizes four core values: Optimal investment, which focuses on achieving high returns through rapid deployment and cost reduction; Higher returns, achieved by continually improving Return on Energy (RTE), availability, consistency, and State of Charge (SOC) accuracy to enhance energy throughput throughout the product lifecycle; Plant-level grid forming, which includes six capabilities such as short circuit level, wideband oscillation damping, inertia response, primary frequency regulation, black start, and on/off-grid switching; and C2G safety, where Huawei's C2G safety technology ensures that grid-forming ESS meets the Zone C safety standard, minimizing risks associated with grid operations.