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2025-10-14

Swatten Presented by Sieyuan: 7 Core Power Design Principles Inherited from Grid-Level Expertise

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The global energy landscape is shifting. Today, homes and businesses seek energy security and independence, and storage must evolve from a backup appliance to an intelligent power partner.

Swatten, a strategic brand of Sieyuan Electric, brings utility-level safety and reliability to every home and business. Drawing on 32 years of Sieyuan's grid-level expertise in GIS, SSC, and SVG, and guided by 7 core design principles, Swatten delivers smarter, safer, and more adaptable energy—turning complex grid-grade technology into seamless daily power. Smarter Power, Better Life.

l Make it Universal

One system. Multiple functions. All scenarios. At Swatten, “smarter power” is more than a slogan—it is realized through high-performance system design. Every product integrates multiple operating modes—Self-Consumption, Grid-Tied, No Battery, No PV, Pure Off-Grid, AC Coupling, Dynamic Pricing, and Battery/Inverter Parallel—ensuring each function performs optimally. Guided by our 7 core design principles, Swatten systems simplify installation, enhance operational flexibility, and deliver reliable energy for both new builds and retrofits.

Universality goes beyond technology. Swatten systems are certified in 16+ countries across Europe, Africa, and the Asia-Pacific, with locally proven projects providing trusted, secure, and sustainable power for homes, businesses, and cities. Our compatibility is not merely technical—it reflects a global commitment to serve diverse regions, cultures, and communities, translating grid-grade reliability into seamless, everyday energy.

l Built-in On & Off Grid

Swatten delivers inherently resilient energy with seamless on/off-grid switching in under 4 ms, enabled by a core IGBT/MOSFET power module capable of dual-mode operation and advanced three-level topology. Sensitive electronics and motor-driven appliances operate uninterrupted, while three-phase hybrid inverter (10–50 kW) provide up to 55 kW bypass output to support high-demand loads such as 11 kW EV chargers alongside household consumption.

With 20% higher power density and components sourced from global leaders like Infineon, Swatten systems are compact, lightweight, and robust. Built-in on/off-grid functionality eliminates external backup units, reducing installation time and costs by over 20%. Fully certified to IEC and VDE standards with strict EMC compliance, Swatten ensures secure, uninterrupted, and interference-free energy for homes, businesses, and critical devices worldwide.

l Real Battery Ready

Smarter power adapts to evolving energy needs. Swatten supports a "start now, upgrade later" approach, allowing single units to expand up to 104.8 kWh. Inverters feature pre-integrated battery management controllers, standardized interfaces, and a complete library of charging algorithms and communication protocols, making battery addition a true plug-and-play process—no controller replacement, complex debugging, or software upgrades required.

With a capacity expandable up to 104.8 kWh, the system can power a typical household off-grid for up to a week, minimizing the risks of large-scale outages—like those seen across the Iberian Peninsula this year. Global certifications validate seamless expansion without re-certification, reducing administrative time and cost. From Europe to Australia, Swatten enables families and businesses to achieve energy independence flexibly, securely, and efficiently.

l Go Fanless

In Southeast Asia, inverters are often installed indoors, making noise a major concern for households. Smarter power is quietly dependable. Swatten's fanless design leverages optimized hardware and advanced passive thermal management to operate at ≤35 dB even under 20 kW high-load conditions, comparable to a quiet library, making it ideal for indoor installations across Southeast Asia. The fanless design avoids mechanical wear and dust intake, significantly enhancing long-term reliability and delivering an industry-leading MTBF while maintaining rated power output even in 45°C ambient temperatures.

This silence is more than comfort. It protects living spaces, supports better sleep and mental well-being, and creates a cleaner, healthier indoor environment. Reduced maintenance and uninterrupted, dependable power make Swatten an ideal choice for homes and businesses.

l Maximize DC Input

Smarter power captures every photon. Swatten single-phase hybrid inverters support up to 330% DC oversizing, enabled by an intelligent dynamic algorithm that prioritizes battery charging over power clipping to maximize energy harvest throughout the day. With a 50V low start-up voltage, the system begins operating at dawn and dusk when conventional inverters requiring 80–150V remain idle, extending daily generation by 2 hours.

Coupled with a 99.9% efficient MPPT tracking system, Swatten precisely extracts every possible watt from the panels, increasing daily battery charging by 20–30%. This combination of intelligent design, high efficiency, and early start capability ensures homes and businesses capture the maximum energy available, even under cloudy conditions.

l Maximize Off-grid Output

Smarter power empowers true off-grid operation. Swatten three-phase hybrid inverters support 100% unbalanced load in off-grid mode, allowing high-power appliances on a single phase without causing flickering or instability on others. Single-phase models deliver up to 280% peak power for 10 seconds, enabling smooth startup for motor-driven devices such as air conditioners and water pumps.

This robust surge capability, supported by premium components and advanced thermal design, ensures essential systems—lighting, medical devices, water supply, and surveillance—remain operational during blackouts. Swatten’s off-grid reliability safeguards family security, health, and daily life, translating engineering excellence into uninterrupted energy independence.

From Europe to Australia, from Southeast Asia to Latin America, users are experiencing how Swatten turns energy challenges into everyday reliability. Our 7 design principles are more than technical benchmarks—they are the reason homes stay bright during outages, families enjoy comfort despite rising tariffs, and businesses run without interruption. Smarter Power, Better Life is not just our vision; it is the shared reality we are building for households and industries worldwide, powered by Swatten's grid-proven expertise.

Learn more: https://www.swatten.com/