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Providers of Energy Storage and Power Quality Systems
Commercial & Industrial (C&I) Energy Storage Systems | Residential Energy Storage Systems | Power Quality Systems
Make energy and ecology more harmonious
Promote the green development of the energy market through energy storage and power quality services
Explore BESS Products and Energy Storage Solutions by Application
Why Choose Us
Our Advantages
- Multi-layer BMS Real-time Protection
- Millisecond-level On/Off-Grid Switching
- Predictive Battery Health Management (PBHM)
- Multi-terminal Visual Platform
- Modular High-density Design
- Intelligent Thermal Management
- Layout Optimization
- Charging and Discharging Accuracy
- Peak-Valley Arbitrage
- Demand Management
- Uninterrupted Power Supply for Critical Loads
- Cut Electricity Costs
- Improve Power Quality
- Extend Equipment Lifespan
Our Products
Product Solutions
Commercial & Industrial (C&I) Energy Storage Systems | Residential Energy Storage Systems | Grid-Scale Energy Storage Solutions
Comprehensive Solutions
Energy Storage Solutions
Tailored energy storage solutions for residential, commercial, and industrial applications.
Company Profile
Zhejiang YIYEN Holding Group Co., Ltd. is a high-tech enterprise focusing on the R&D of electronic and electrical technology and intelligent manufacturing. It provides core power equipment and system solutions for the Internet of Things (IoT) energy sector, including YIY customized OEM/ODM services. At present, the group has holding companies such as YIYEN Electrical Technology Co., Ltd., Shenzhen YIYEN Electrical Technology Co., Ltd., and Lishui YIYEN Electrical Technology Co., Ltd. With one-stop customization capabilities covering R&D design, flexible manufacturing, and test delivery, the group can provide customers with personalized product R&D and production and manufacturing services.
15+
Experience
30000m²+
Plant Area
130+
Long-term Partner
50+
R&D Staff
Manufacturing Excellence
Our Factory
Scalable Manufacturing Capacity
Cutting-edge Automated Equipment
Lean Manufacturing Excellence
High-Precision Smart Manufacturing
Craftsmanship & Quality Control
Self-owned Production Base
Strong Corporate Identity
Efficient Logistics & Inventory
Company News
Latest Updates
Good News | YIY Technology Successfully Wins Bid for State Grid Shanghai Energy Internet Research Institute Procurement Project
YIY Technology has successfully won the bid for the 2026 fifth-batch public negotiation procurement project of State Grid Shanghai Energy Internet Research Institute, supplying energy storage systems and power modules for solar-storage-diesel hybrid systems.
Advanced Static Var Generators: Revolutionizing Reactive Power Compensation
Advanced Static Var Generators (ASVG) represent a breakthrough in reactive power compensation, offering fast dynamic adjustment, comprehensive harmonic filtering, and superior cost-effectiveness compared to traditional devices. By maintaining optimal power quality, ASVG extends equipment lifespan, reduces energy loss, and eliminates the need for additional filtering equipment—making it an indispensable asset for modern power systems.
North China Electric Power University Foreign Aid Training Program Visits Yiyuan Tech for Exchange
On July 23, 2025, a delegation from North China Electric Power University's Foreign Aid Electrical Industry Training Program visited Yiyuan Technology for an in-depth exchange on renewable energy technology promotion. The visit included a tour of the corporate exhibition hall, a thematic symposium, and an interactive Q&A session, laying a solid foundation for future university-enterprise collaboration in overseas energy aid projects.
The Future of Energy Storage: Top 10 Trends Shaping 2027-2030
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Why LiFePO4 Batteries Are Dominating the Energy Storage Market in 2026
Read More →Expert Insights
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Certifications
Adhering strictly to international quality standards. View our ISO, CE, and industry-specific certifications online for guaranteed quality assurance.
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- 15+ Years of Experience
- 30,000m² Modern Manufacturing Facility
- Annual Capacity of 1,000,000+ Units
- 300+ Professional Staff
- 50 R&D Engineers
- Exported to 130+ Countries
- 100+ Intellectual Property Rights and Continuous Innovation
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