The curtailment of “excess” energy to the main grid in most inverters is done by means of the so-called “smart” electricity meter or also known as a Smart Meter. Its function is to constantly monitor the consumption on site, whether it is a house, warehouse or a large production facility.The device transmits this information to the inverter 24/7. In this way, the inverter knows at any given point in time whether the amount of energy produced is greater than the amount consumed. It is when production exceeds consumption that this “excess” energy begins to return to the grid. If the inverter detects a situation in which the production is greater than the consumption, it immediately reduces its production so that it is equal to or less than the consumption of the site. In this way, the return of energy back to the EDC network is avoided.