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Huawei Launches LUTERRA® S2: A Breakthrough in Residential Energy Systems

On November 9, Huawei officially unveiled the HUAWEI LUTERRA S2—a comprehensive energy system designed for residential use. This all-in-one solution integrates a hybrid inverter, energy storage, and management capabilities, all powered by AI, providing homeowners with a robust and efficient energy solution.

Seamless Installation and Versatile Configurations

The LUTERRA S2 boasts an innovative design that makes installation and operation a breeze—it can be set up in minutes. Available in single-phase (3 – 10 kW) and three-phase (5 – 20 kW) configurations, the system provides versatility to meet varying household energy needs. Significantly, it is the first comprehensive energy system in the market built on Huawei's patented full-SiC (Silicon Carbide) architecture. This unique design offers exceptional efficiency, power density, and reliability, setting a new industry standard.

Steve Zhang, president of Huawei's Distributed PV BESS Business, expressed excitement about the new product, stating, “The LUTERRA S2 combines full-SiC architecture, AI-driven energy management, and top-notch security, designed to be smaller, lighter, quieter, and more intelligent than any system before it.”

Addressing Modern Energy Demands

As the integration of solar power, energy storage, electric vehicle charging, and household energy management evolves, homeowners are increasingly seeking sophisticated solutions that extend beyond mere performance and capacity. The LUTERRA S2 meets these emerging demands through three core pillars: Breakthrough Experience, Intelligence, and Security.

Breakthrough Experience: Redefined Utility

The LUTERRA S2 brings together high power density and a compact design to deliver a 20 kW output in a simplified unit. With a maximum efficiency of 99% and built-in energy optimizers, it allows for up to 5.0 MWh/kWh of usable energy throughout its lifespan—projected to last over 15 years.

The system’s art-inspired design integrates effortlessly into modern homes, highlighted by award-winning hardware, an intuitive mobile app, and smart pulsating lighting that marries technology with lifestyle. Additionally, the industry-first natural cooling design eliminates the need for external fans, maintaining operational noise below 29 dB.

Breakthrough Intelligence: From Automation to Active Decision-Making

Through the AI Energy Management 2.0 platform, the LUTERRA S2 introduces intelligence into the planning, operation, and optimization of energy values. It smartly coordinates photovoltaic systems, energy storage, electric vehicle charging, and heat pumps, maximizing the value of every kilowatt-hour produced and consumed.

Homeowners can leverage an AI assistant for seamless energy management through easy conversational interactions, facilitating informed decision-making. For installers, enhanced 3D modeling simplifies planning and design by identifying roof structures and installation environments, while AI-enabled diagnostics and remote support boost operational efficiency.

Breakthrough Security: Comprehensive Protection

Safety is embedded at every layer of the LUTERRA S2, from battery cells to system operations. Each battery cell features an independent protective insulation structure, utilizing safety components developed by Huawei to prevent contamination spread and mitigate thermal risks. The intelligent smoke venting design enables pressure release and smoke evacuation, along with ongoing temperature detection to provide proactive protection for critical connections.

The LUTERRA S2 adheres to stringent EU battery regulations and international standards including IEC 63027 AFCI. It has successfully passed rigorous safety tests from TÜV Rheinland, including assessments for thermal runaway, extreme fire exposure, and explosion risks, earning the highest Safety Mark certification from TÜV Rheinland.

Leading the Future of Household Energy Systems

The LUTERRA S2 transcends traditional energy storage solutions by merging intelligent technologies, enhanced quality of life, and a sustainable lifestyle. Huawei is setting a new standard for next-generation residential energy solutions, accelerating the transition towards a smarter and more sustainable future.

Key Technical Specifications:

• - Inverter: Up to 3 inverters in parallel, max. 60 kW (203)
• - Battery: Up to 48 parallel batteries, max. 336 kWh (4437)
• - Efficiency: Maximum efficiency of 99%
• - Backup: Switch to backup in 10 ms; grid load up to 20 kW
• - Cooling and Noise: Natural cooling with no fan; under 29 dB
• - Operational Range: -25 °C to +60 °C; IP66; corrosion protection up to C5-M
• - Connectivity Options: EEBUS, SG-Ready, OCPP, Modbus-TCP
• - Safety Verification: TÜV Rheinland testing; UL 9540A; AFCI compliant to IEC 63027

For more details, visit Huawei's Website.