印度采购需求：太阳能电池板、太阳能系统、锂离子电池、太阳能逆变器、便携式电站、磷酸铁锂电池

We are currently exploring options for a 50kW on-grid solar power system that meets our energy needs. Ideally, we're looking for a reliable solution that combines efficiency with quality components. It is essential for us to ensure that the system adheres to industry standards and can deliver optimal performance over its lifespan. We'd appreciate any specifications, certifications, and performance metrics you can provide for your available products. Additionally, we're interested in understanding the installation process and any support services you offer post-installation. Please include information about warranties, maintenance packages, and any potential financing options. Insights on the expected return on investment and payback period would also be helpful as we assess our options. Looking forward to your detailed response!