Offgrid Solar System Engineering for Commercial Use

I'm seeking an experienced engineer to design a comprehensive offgrid solar battery generator system for commercial use with a power capacity of 10-50 kW.

The project involves:
- Solar panel array design
- Battery storage system
- Inverter and control system setup

Ideal Skills and Experience:
- Proven expertise in solar energy systems
- Strong background in battery storage technologies
- In-depth knowledge of inverters and control systems
- Experience with commercial-scale projects

Please provide a detailed proposal outlining your approach, timeline, and relevant experience.