What is On Grid System?
On Grid or Grid-Tie or Grid-Connected Solar System is a solar power generation system where it is connected to the utility grid. The electricity produced by the system is routed to the grid from where it is used to run the various appliances.
Of the several types of different systems installed across the globe, the On Grid System is the most widely chosen one.
Pros and Cons of On Grid System
Pros
- The installation is simple, fuss-free and easy to maintain
- Better ROI. Without Battery this system is the most cost effective.
- The solar power is produced only when the grid is available. According to regulation, the power supply gets completely cut-off in case of the grid outage. You will be without electricity during a power outage if you have an On Grid System without backup power. This means the system will fail in case there is a long power outage due to an exceptional incident like a natural disaster or human error on the grid.
Zero Export
On Grid System exports power to grid in case of excess power generation.
Zero Export means there is no export of power from the solar power plant to the grid.
Solar energy generation in the system is controlled by adjusting the set point of the inverter in the system. The integrated power analyser measures the total power at the point of coupling and compares this with the adjustable set point of the controller. When the consumption from the grid is above this set point, the solar energy will be increased, when the consumption is below this set point, the solar energy will be reduced.
This is the solution with the increasing utility regulations for export control in residential and medium size commercial PV systems.
