June 22, 2026
Sunways Launches 5–20kW Three-Phase Low-Voltage Hybrid Inverter
Sunways Introduces a New 5–20kW Hybrid Inverter for the Global Three-Phase Market
Sunways has officially launched its new 5–20kW three-phase low-voltage hybrid inverter, designed for residential and light commercial solar energy storage applications across global three-phase markets.
As electricity consumption continues to evolve, solar-plus-storage systems are no longer used only for basic backup power. High-power home appliances, electric vehicles, heat pumps, farms, villas, small businesses, and dynamic electricity tariffs are creating new requirements for storage systems. Users now need higher PV yield, flexible battery expansion, faster backup switching, easier installation, and smarter energy management.
The new Sunways 5–20kW three-phase low-voltage hybrid inverter is developed around these real market needs. Through system-level optimisation and hardware-software integration, it provides a more flexible, reliable, and intelligent solution for high-load residential and light commercial scenarios.
Built to Solve Real Industry Pain Points
Many three-phase storage inverters on the market still face practical limitations in real projects. Battery compatibility is often restricted, making it difficult to combine different battery types or expand existing systems. This increases the cost of retrofit projects, especially for users who want to keep existing battery assets while adding new capacity.
PV adaptability is another challenge. In Europe and many global markets, residential roofs are often affected by multiple orientations, irregular slopes, dormers, chimneys, and partial shading. If an inverter has too few MPPT trackers or a narrow voltage range, PV strings cannot be managed independently, which may lead to mismatch losses and lower energy yield.
In addition, larger homes, farms, and small commercial sites often require multi-unit parallel operation for off-grid backup. These applications demand stable system coordination, strong overload capability, and fast commissioning. When system integration is weak, installers face longer setup times, higher labour costs, and more complex maintenance.
Sunways developed the new 5–20kW three-phase low-voltage hybrid inverter to address these issues from the system level, rather than simply increasing power ratings.
Seven Core Capabilities for Solar-Plus-Storage Applications
The new Sunways hybrid inverter integrates seven key capabilities to improve system flexibility, backup reliability, installation efficiency, and energy value.
1. Dual Independent Battery Inputs
The inverter supports dual independent battery inputs, allowing more flexible battery configuration and future expansion. It is designed to support mixed battery types, including lithium and lead-acid batteries, helping reduce barriers in retrofit projects.
For users with existing battery systems, this design makes it easier to expand capacity without replacing the entire storage system. For installers, it provides more options when designing systems for different budgets, battery conditions, and long-term expansion plans.
2. 0ms / 4ms Grid-to-Off-Grid Switching
Backup power performance is critical for users who need stable electricity during grid fluctuations or outages. The new Sunways inverter supports 0ms seamless transfer under no-load conditions and switching as fast as 4ms under full-load conditions.
This fast transfer capability helps protect critical loads and improves the user experience during sudden grid interruptions. It is especially valuable for homes with essential appliances, small commercial operations, agricultural sites, and locations where grid stability may be limited.
3. Four Independent MPPTs with 160–850V Ultra-Wide MPPT Range
The inverter is equipped with four independent MPPT trackers and a 160–850V ultra-wide MPPT voltage range. This design improves PV adaptability for multi-orientation roofs, complex roof layouts, irregular slopes, and partially shaded environments.
By allowing PV strings to be tracked more independently, the inverter helps reduce mismatch losses and increase energy harvest. The wide voltage range also supports more flexible module configurations, giving installers more freedom when designing PV systems for different roof types and project requirements.
4. 10+ Unit Off-Grid Parallel Operation and High Surge Capacity
For larger residential and light commercial systems, the new inverter supports 10+ unit off-grid parallel operation, enabling flexible capacity expansion for high-power applications.
On the AC side, the inverter supports 110% continuous output, while off-grid peak load capability reaches up to 2 times rated power for 10 seconds. This makes the system suitable for high-demand loads such as pumps, motors, air conditioning systems, farms, villas, and small commercial facilities.
With stronger parallel and surge capabilities, the inverter can support more demanding backup scenarios while maintaining system stability.
5. 38kg Lightweight Design and 10-Minute Installation
Installation efficiency is a key factor in project cost. The Sunways 5–20kW three-phase low-voltage hybrid inverter adopts a compact and lightweight design, with a weight of only 38kg, about 27% lighter than comparable models.
The integrated structure and standardised mounting design help simplify handling, installation, and commissioning. With a streamlined installation process, the inverter can be installed in as little as 10 minutes, helping installers reduce labour time and improve project delivery efficiency.
6. European Smart Tariff Integration
Energy storage is becoming more valuable when it can respond intelligently to electricity price signals. The new inverter supports smart tariff integration through connection with Nord Pool day-ahead electricity pricing data, enabling automatic charging when electricity prices are low and discharging when prices are high.
This function helps users move beyond basic backup power and use storage systems for electricity cost optimisation. In markets with dynamic tariffs, it can support tariff arbitrage and improve the long-term value of solar-plus-storage systems.
7. Bluetooth-Based Commissioning Without Network Requirement
Commissioning can be difficult in basements, farms, garages, remote sites, and locations with weak or unavailable network signals. The new Sunways inverter supports Bluetooth-based App commissioning, allowing installers to complete setup without relying on network access.
This improves installation flexibility and reduces commissioning complexity, especially in retrofit projects and off-grid or weak-grid environments. Together with Sunways Cloud monitoring, users and installers can manage system performance more efficiently after deployment.
One Inverter for Multiple Energy Scenarios
The Sunways 5–20kW three-phase low-voltage hybrid inverter is designed as an intelligent energy hub for high-load residential and light commercial applications. It combines high-efficiency PV generation, flexible battery compatibility, ultra-fast backup switching, intelligent tariff scheduling, and simplified installation in one integrated platform.
It addresses five key challenges in modern solar-plus-storage projects: PV adaptability, battery expansion, sudden power outages, tariff-based energy optimisation, and multi-device system interoperability.
For homeowners, it supports higher self-consumption, stronger backup capability, and smarter energy cost control. For farms and small commercial users, it provides scalable power, reliable off-grid operation, and improved system flexibility. For installers and distributors, it reduces project complexity and supports a broader range of applications with one inverter platform.
Global Certification Coverage and Long-Term Reliability
The new inverter is developed for global three-phase markets and supports certification coverage across key regions, including the European Union, Germany, Italy, Poland, India, Thailand, the Philippines, and Malaysia.
This wide certification coverage helps distributors, installers, and project developers deploy the product in different markets with greater confidence. It also reflects Sunways’ long-term focus on product compliance, system safety, and international market adaptation.
Backed by German Heritage and Global Manufacturing Capability
Sunways was founded in Konstanz, Germany, in 1993 and has more than 30 years of experience in the solar inverter industry. Following strategic investment from Puze Group in 2018, Sunways has continued to strengthen its global product development, manufacturing, and service capabilities.
Today, Sunways provides a complete product portfolio covering 1–170kW grid-tied inverters, 3–80kW hybrid inverters, storage batteries, monitoring devices, and the proprietary Sunways Cloud energy management platform. This portfolio supports residential, commercial, industrial, and large-scale distributed energy applications.
The launch of the 5–20kW three-phase low-voltage hybrid inverter further expands Sunways’ energy storage portfolio and strengthens its ability to serve the next generation of residential and light commercial energy systems.
A Smarter Inverter for the Next Stage of Energy Storage
The global solar-plus-storage market is entering a new stage. Users are no longer looking for simple backup systems alone. They need intelligent, flexible, and reliable energy platforms that can adapt to real operating conditions, changing electricity prices, future battery expansion, and higher power demand.
The Sunways 5–20kW three-phase low-voltage hybrid inverter is built for this transition. From higher PV yield and flexible battery compatibility to fast backup switching, lower installation cost, and smart tariff-linked operation, it provides a complete solution for modern three-phase energy storage applications.
More than just an inverter, it is an intelligent energy hub for high-load homes, farms, villas, and light commercial sites — helping users generate, store, manage, and optimise energy with greater confidence.
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