Why we need the Export Limitation Feature
1. In some countries, local regulations limit the amount of PV power plant can be fed-in to the grid or allow no feed-in whatsoever, while allow the use of PV power for selfconsumption. Therefore, without an Export Limitation Solution, PV system cannot be installed (if no feed-in is permitted) or are limited in size.
2. In some areas FITs are very low and application process is very complicated. So some of end users prefer to use solar energy only for self-consumption instead of selling it.
Such these cases drove inverter manufactures to find a solution for zero export& export power limit.
1. Feed-in Limitation Operation Example
The follow example illustrates the behaviour of a 6kW system; with a feed-in power limit of 0W- no feed into grid.
The Overall behavior of the example system throughout the day can be seen in the follow chart:
2. Conclusion
Renac offers an export limitation option, integrated in the Renac inverter firmware, which dynamically adjusts PV power production. This allows you to use more energy for selfconsumption when the loads are high, while maintaining the export limit also when the loads are low. Make system zero-export or limit export power to a certain set value.
Export Limitation for Renac single phase inverters
1. Purchase the CT and cable from Renac
2. Install the CT at the grid connection point
3. Set the export limit function on inverter
Export Limitation for Renac three phase inverters
1. Purchase smart meter from Renac
2. Install the three phase smart meter at the grid connection point
3. Set the export limit function on the inverter
