China Best Bulk Solar Battery Manufacturer & Factories

Empowering global utility-scale projects and microgrids with tier-1 smart storage systems, advanced monocrystalline PV modules, and commercial-grade energy integrations.

Discover Our Cutting-Edge Solar Modules

Engineered by Wing, our advanced N-type PV architectures offer optimized Levelized Cost of Energy (LCOE) across diverse global project applications.

Residential Applications

455Wp N-Type

Sleek, high-density residential PV modules delivering maximum power output per square meter. Perfect for rooftops with spatial constraints.

Residential N-Type PV Panel
  • Design: Standard Mono-Facial
  • Dimensions: 1762 x 1134 x 30 mm
  • Max Efficiency: 22.77%
  • Temp Coeff. (Pmax): -0.29%/°C
  • Linear Warranty: 30 Years
Commercial & Industrial

590Wp N-Type

High-efficiency, versatile PV panels designed to withstand demanding industrial rooftop conditions while ensuring reliable peak outputs.

Commercial N-Type PV Panel
  • Design: Standard High-Output
  • Dimensions: 2279 x 1134 x 35 mm
  • Max Efficiency: 22.84%
  • Temp Coeff. (Pmax): -0.29%/°C
  • Linear Warranty: 30 Years
Utility Scale Energy

705Wp N-Type

Bifacial solar technology capturing dual-side solar irradiance. Tailored to maximize power output for massive utility ground plants.

Utility Bifacial N-Type PV Panel
  • Design: Bifacial Double-Glass
  • Dimensions: 2384 x 1303 x 35 mm
  • Max Efficiency: 22.70%
  • Temp Coeff. (Pmax): -0.30%/°C
  • Linear Warranty: 30 Years

A Global Snapshot of Wing Solar

Established in 2005, we have transitioned from a premium PV manufacturer into a Tier 1 global solar player with an international operation footprint.

20+
Years Solar Industry Heritage
3GW+
Current Capacity (10GW by 2026)
6GW+
Global Clean Energy Deliveries
90+
International Regions Supplied

Advanced Manufacturing Capabilities

Wing operates intelligent Industry 4.0 production facilities in China, which are currently undergoing major expansion. Driven by advanced automation and strict quality controls, our baseline 3GW capacity is slated to grow to 10GW by 2026. This scaling helps address the rising global demand for Tier-1 PV modules and battery storage solutions.

Globalization & Local Presence

Understanding that local support is essential for utility-scale success, Wing solidified its global presence by establishing its operational headquarters in Vienna, Austria. This European hub bridges our state-of-the-art Chinese manufacturing facilities with localized engineering, reliable warranties, and efficient logistics coordination.

Global Sourcing Whitepaper: Bulk Solar Batteries & Energy Integration

1. The Shift to High-Capacity Commercial & Industrial Storage

As grid instability increases and carbon reduction mandates tighten, commercial and industrial (C&I) buyers are prioritizing integrated energy systems. Investing in bulk solar batteries is no longer just about backup power. Businesses are leveraging battery systems for peak shaving, load shifting, and optimizing solar consumption. By choosing China-based manufacturing hubs like Wing, enterprises can source high-density storage solutions that maintain excellent reliability under heavy cycles.

2. Technical Standards & Battery Chemistry Selection

Modern industrial energy storage projects require strong technical due diligence. While lithium iron phosphate (LFP) remains the standard for stationary storage due to its thermal stability and cycle life, key parameters like the depth of discharge (DoD), active Balancing Management Systems (BMS), and round-trip efficiency are crucial for long-term project viability. Industrial systems must integrate easily with high-efficiency PV panels—such as N-Type HJT or TOPCon modules—to ensure stable power generation and storage.

3. Evaluation Criteria for Tier-1 Manufacturing

Procuring utility-grade components requires careful factory audits. Buyers should evaluate suppliers on:

  • Automated Production Lines: Automated cells assembly ensures consistency in module build and reduces defects.
  • Certifications: Strict compliance with TUV, CE, UL, and IEC standards is essential for smooth grid connection.
  • Warranty Security: Reliable manufacturers offer extended, performance-backed warranties (up to 30 years for premium N-Type products) supported by international reinsurance.

4. Integrating PV & Storage: Minimizing System Levelized Cost (LCOE)

Combining high-output modules (like Wing's 705Wp Bifacial series) with matched battery storage systems helps reduce balance of system (BOS) costs. A proper DC-coupled architecture minimizes conversion losses, maximizing energy harvest in solar plants. This approach simplifies installation and helps lower the overall LCOE of energy storage projects.

International Compliance & Local Support

Meeting stringent global standards to ensure seamless customs clearance, grid connection, and reliable project performance.

Grid Certification

Our complete component family carries certifications including CE, TUV, UL, and IEC. This ensures compliance with local utility regulations and grid codes across Europe, the Americas, and APAC.

Optimized Sourcing & Logistics

By leveraging Chinese manufacturing scale alongside our operational office in Vienna, Austria, we provide smooth logistics support. Our team helps coordinate customs clearance, tariff mitigation, and reliable shipping timelines.

Performance Warranties

We provide long-term warranty support, including linear performance guarantees on N-Type modules and structural warranties on battery storage cells. Our regional service centers offer timely assistance during project operations.

Key Procurement Q&A

Answers to common technical, logistics, and quality questions from commercial energy project managers and procurement officers.

What makes N-type PV cells more effective for hybrid storage systems?
N-Type cells feature a lower temperature coefficient (-0.29%/°C to -0.30%/°C) and higher initial efficiency (up to 22.84%). This allows them to generate more power in hot climates and during low-light hours. Generating more energy over the day translates to steadier, more reliable charging for battery banks.
How does Wing ensure the bankability and reliability of its modules?
Wing is recognized as a Tier 1 PV manufacturer by BloombergNEF. Our automated facilities minimize production variation, and all product lines undergo third-party testing. These steps help secure project financing and provide peace of mind for long-term investments.
What is the significance of the Vienna headquarters for non-European buyers?
Our Austrian headquarters operates under EU legal standards, providing additional contract security and warranty enforcement. It also simplifies international coordination, offering global buyers a direct path for technical consulting, logistics support, and project coordination.
What options exist for custom OEM/ODM solar battery and module packaging?
We offer flexible OEM and ODM services. This includes custom branding, specialized mounting systems for concrete or metal roofs, custom PV cable configurations, and tailored battery enclosures designed to meet specific environmental conditions.