Commercial 20kW Solar System Design

I need a skilled solar designer to create a grid-tied solar system for commercial use. The system should be 20kW and include solar panels, inverters, and mounting structures.

Requirements:
- Design a grid-tied solar system specifically for commercial use
- System capacity: 20kW
- Components to include: solar panels, inverters, mounting structures

Ideal skills and experience:
- Expertise in commercial solar system design
- Knowledge of grid-tied configurations
- Experience with selecting and integrating solar panels, inverters, and mounting structures
- Relevant certifications in solar design and installation

Please provide previous work samples and relevant certifications. Looking forward to your bids!