About Sunways
Solar Inverter Company Since 1993
Founded in Konstanz, Germany in 1993, Sunways is a technology-driven enterprise focused on the R&D, manufacturing, and global distribution of inverters.
In 2018, the company received strategic reinvestment from the China’s Puze Group, leading to the official establishment of Ningbo Sunways Intelligent Technology Co., Ltd. Today, our global headquarters and core manufacturing base are located in Ningbo, China. We also operate two regional centers—one in Frankfurt, Germany, and one in Suzhou, China—supported by service hubs and branch offices in more than ten countries worldwide.
Our main product portfolio includes grid-tied solar inverters, hybrid inverters, energy storage batteries, energy management systems (EMS), and related accessories.
After years of steady growth, Sunways’s products are now sold in over 60 countries and regions across Europe, Asia-Pacific, the Middle East, South America, and Africa. Shipments to the European market account for more than 50% of our total global sales volume.
All core products have obtained authoritative certifications, conforming to the standards of China, Germany, Italy, the United Kingdom, France, Spain, Poland, Austria, Belgium, Australia, Brazil, India, Thailand, South Africa, and many other countries.
Smart energy, full-scenario
Our Corporate Spirit
Sunways integrates its core values into every aspect of solar inverter and energy storage solutions, delivering reliable performance, advanced technology, and long-term value for customers worldwide.
Professionalism
End-to-end service, full-process support, scenario-based precision
Craftsmanship
Full-stack R&D, rigorous
testing, reliable and durable
Innovation
AI technology, VPP platform, continuous iteration
Win-Win
Empowering partners, committing to sustainability
gLOBAL mARKET
Sunways Worldwide Support
HQ & MANUFACTURER BASE
Ningbo, China
OPERATION CENTER
Frankfurt, Germany
Suzhou, China
WAREHOUSE
Netherlands
SERVICE CENTER
Europe
· Konstanz, Germany
· Italy
· United Kingdom
· Poland
· Czech Republic
Australia
· Sydney, Australia
Asia
· Ahmadabad, India
· Dhaka, Bangladesh.
· Ho Chi Minh, Vietnam
· Jakarta, Indonesia
· Antipolo. Philippines
· Lahore Pakistan
The Americas
· Campinas, Brazil
1993
Foundation of Sunways GmbH in Constance.
2001
Listing on the Frankfurt Stock Exchange.
2005
Sunways established a dedicated manufacturing and production facility in Arnstadt.
2018
Puze Group invested in Sunways and started new product development at its advanced facility.
2021
Sunways expanded into the 1–125 kW on-grid inverter and 3–33 kW hybrid inverter range, entering a new stage of development.
2023
- Activated new manufacturing center.
- Launched new low-voltage hybrid series.
2024
- Launched new products: STS-3–6KTL-SE and STT-15–30KTL-SE.
- Established India Office and Pakistan Service Center.
- Awarded SGS Qualified Testing Lab.
2025
Launched new products:
- Low-voltage hybrid inverter STH-3–8KTL-LS.
- On-grid inverter 100–150K.
German Heritage · China Intelligence
Sunways Smart Factory
As a professional solar inverter manufacturer and energy storage battery manufacturer, Sunways operates a 60,000m² state-of-the-art smart manufacturing base built to German Industry 4.0 standards. The factory integrates R&D, automated production, advanced testing, and strict quality control into one intelligent manufacturing system. This enables Sunways to deliver consistent product quality, high production efficiency, and full-process traceability across every stage of solar inverter and energy storage battery manufacturing.
- End-to-end digital integration (MES / ERP / SCM / QMS)
- Strict quality control system (IQC, IPQC, FQC, OQC)
- Lean and automated production lines
- Full traceability system
- Intelligent logistics & warehousing
- Continuous improvement culture&PDCA
Smarter Energy Starts Here
Driven by our vision of Energy Connects All, Sunways delivers smart, reliable energy solutions for every scenario.