An on-grid solar power plant uses photovoltaic panels to convert sunlight into electricity, which is then used by homes or businesses and fed into the public electricity grid. Excess energy can be sent back to the grid, potentially earning credits through a system called net metering. These systems provide a consistent power supply by relying on the grid for backup, acting as a large virtual battery to cover energy needs when solar production is insufficient.

A 3kW solar system generates 12–15 units per day. You can save between Rs. 66 and Rs. 90 per day, and between Rs. 1,650 and Rs. 2,250 per year. Within three years, the collected savings can help pay for the entire installation. You can become self-sufficient from the regional utility grid by using solar power.