GRANKIA (Est. 2008) is an ISO9001/ISO14001/TUV certified, world-class turnkey OEM/ODM manufacturer specializing in solar energy solutions (solar panels, inverters, charge controllers, and battery storage).
Providing end-to-end, highly flexible board-level and system-level customization from initial concept to mass production.
Transparent upfront pricing, stringent quality control, a global supply chain spanning Taiwan and China, and accelerated time-to-market with reduced manufacturing costs.
Since our founding in 2008, GRANKIA has established itself as an industry-leading OEM/ODM service provider. With extensive experience serving a diverse global clientele, we possess deep expertise in tailoring products to exact specifications.
As a highly versatile turnkey manufacturer, GRANKIA transforms your creative concepts and technical ideas into viable, industrial-grade computing and power solutions. We collaborate closely with individuals and enterprises at every stage of the design and manufacturing lifecycle, ensuring a focused and seamless transition from blueprint to finished product.
Why Choose GRANKIA for OEM & ODM Manufacturing?
GRANKIA is a highly versatile turnkey manufacturer capable of transforming innovative concepts into commercially successful energy solutions.
Our expertise covers:
Solar Panels
Lithium Battery
Energy Storage Systems
Solar Inverters
Uninterruptible Power Supply (UPS)
Residential ESS Solutions
Commercial & Industrial Energy Storage Systems
Whether you are a startup developing a new product line or an established brand expanding your portfolio, our engineering and manufacturing teams support every stage of product development.
Our Advantages:
End-to-End Product Development
Customized Hardware & System Integration
Flexible Manufacturing Capacity
Global Supply Chain Support
International Quality Certifications
Fast Time-to-Market
Competitive Production Costs
End-to-End OEM/ODM Service Workflow
Step 1: Product Concept & Requirement Analysis
The OEM/ODM process begins when customers provide:
Product concepts
Technical specifications
Functional requirements
Performance expectations
Branding requirements
Our engineering team carefully evaluates project feasibility and recommends the most suitable technical solutions for market success.
What Customers Receive
Technical consultation
Feasibility assessment
Initial design recommendations
Manufacturing guidance
Step 2: Cost Evaluation & Project Planning
Before project initiation, GRANKIA provides a comprehensive project assessment that includes:
Product design cost
Engineering development cost
Prototype manufacturing cost
Tooling cost (if applicable)
Estimated unit production cost
This transparent approach enables customers to make informed investment decisions before moving forward.
Step 3: Prototype Development & Validation
After approval of the project proposal, GRANKIA proceeds with prototype development.
Verify product functionality
Evaluate performance metrics
Test system compatibility
Confirm design requirements
Optimize product reliability
Our team works closely with customers throughout the validation phase to ensure all original requirements are fully satisfied.
Step 4: Product Optimization & Final Approval
Customer feedback is integrated into the development cycle to refine the product before mass production.
Electrical performance
Structural design
Safety protection
Thermal management
Battery management systems (BMS)
User experience improvements
Production begins only after customer approval and successful completion of all validation procedures.
Step 5: Mass Production & Quality Assurance
GRANKIA maintains rigorous manufacturing standards across every production stage.
Quality Management System
As an internationally certified manufacturer, GRANKIA operates under:
ISO9001 Quality Management System
ISO14001 Environmental Management System
TUV Certified Manufacturing Processes
Quality Control Procedures
Incoming material inspection
Production process monitoring
Electrical performance testing
Safety compliance verification
Final product inspection
Packaging verification
Every product undergoes multiple quality checkpoints before shipment.
Step 6: Global Distribution & Delivery
To ensure timely delivery and product availability worldwide, GRANKIA operates an international inventory management and distribution network.
Coordinated inventory management
Worldwide logistics support
Efficient order tracking
Stable production scheduling
Reduced lead times
Our manufacturing and logistics resources across Taiwan and China enable responsive global delivery services.
Customized Solutions for the Solar Energy Industry
To meet evolving market demands, GRANKIA provides both board-level and system-level customization services.
Board-Level Customization
PCB design modification
Controller optimization
Power electronics integration
Communication protocol development
System-Level Customization
Solar energy storage systems
Residential ESS solutions
Commercial energy storage systems
Hybrid solar systems
UPS systems
Integrated inverter-battery solutions
Our engineering expertise allows customers to launch differentiated products that stand out in competitive renewable energy markets.
Benefits of Working with GRANKIA
Faster Product Development
Our disciplined project management approach significantly reduces development cycles without sacrificing quality.
Lower Manufacturing Costs
Efficient production processes and supply chain optimization help reduce overall project costs.
Flexible Customization
Every solution is tailored to specific market requirements and business goals.
Professional Engineering Support
Customers gain access to experienced engineers specializing in solar energy technologies and energy storage systems.
Long-Term Manufacturing Partnership
GRANKIA focuses on building sustainable partnerships that support business growth and market expansion.
Partner with GRANKIA Today
GRANKIA serves with professionalism, integrity, and dedication. We welcome opportunities to cooperate with companies seeking customized manufacturing solutions for:
Solar Panels
Energy Storage Batteries
Solar Inverters
Uninterruptible Power Supply (UPS)
Integrated Renewable Energy Systems
Whether you require private-label manufacturing, custom engineering development, or complete turnkey production, GRANKIA is ready to support your business objectives.
Contact GRANKIA
Ready to develop your next solar energy product?
Our OEM/ODM specialists are available to discuss your project requirements and provide tailored manufacturing solutions.
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