On-grid means your solar system is tied to your local utility's GRID. Being grid-tied is beneficial because you don't have to buy an expensive battery back-up system to store any excess energy.
Higher efficiency ceilings, about 10% more power output per watt;Integrated thin film deposition technology, adjustable color/structure/transmittance;No hot spots/hidden cracks/PID, loads +2400Pa;Diversified and customizable, with a wider range of applications;Low industry chain investment, module costs are 50% lower;Lower carbon footprint, energy consumption is only 1/4 of crystalline silicon products.