Condition 3: When the Solar is present |and Grid is absent. Due to Anti-islanding, the inverter will stop its operation. This anti islanding feature is necessary in grid connected inverters to stop the reverse flow of electricity into the grid during a power blackout, so that no maintenance worker’s safety is compromised.
Result: No Solar electricity! Even if the sun is shining.
Explanation: All grid tied inverters suffer from this issue in developing countries. Every day, invariably, the power goes out ranging from a few minutes to a few hours. The inverter shuts itself down within milliseconds as soon as this occurs. This is a mandatory performance requirement for all grid connected inverters. It results in loss of generation from the solar panels even when the sun is at its peak. The problem is more visible in developing countries where this is a daily phenomenon.