On Grid Solar Power System Annual Maintenance Contract Yes Other Components Connectors, Battery, Earthing, Junction Boxes, Charge Controllers, Solar Tracker, Cables, Mounting Structure, Inverter-PCU MNRE Approved Yes Operating Voltage 24 V Warranty of Solar Panels 25 Years** Warranty of Components 10 Years* Extended Warranty Provided Solar Panel Warranty 27 year** Component Warranty 11 Year** Type of Plant Grid Tie Due to our enormous understanding and massive knowledge of this business, we are involved in the offering On Grid Solar Power System.