What you will see

  • Grid over-voltage faults between late morning and mid-afternoon.
  • Output that saw-tooths up and down in the app on sunny days.
  • Few or no trips on cloudy days or in winter.

Why it happens

When your inverter exports, it pushes voltage up slightly at your connection point. On a street where many houses have solar, all of them export at the same time and the local voltage can climb above the inverter’s trip limit.

Long or undersized cable between the inverter and the meter adds to the rise, because the inverter sees a higher voltage at its own terminals than the meter does.

What you can check yourself

  • Compare trip times with the sunniest hours in the app.
  • Ask neighbours with solar whether they see the same pattern.
  • Note whether trips stop when the house is using a lot of power, such as with ACs running.

What not to do

  • Do not ask for the inverter’s protection limits to be raised.
  • Do not switch off DC isolators to “reset” it.

When to call us

  • Trips happen on most sunny days.
  • You are losing a noticeable share of generation.

Busy solar streets in Faisalabad and Lahore

As more homes on a street in Faisalabad or Lahore add rooftop solar, midday voltage rise becomes more common. Our teams check the cable run from inverter to meter and, where the feeder is the cause, help you raise it with FESCO or LESCO.

Send us

Screenshots of two or three sunny days showing the drops, and a photo of the fault code. We will check the cable run from inverter to meter and, where the feeder is the cause, help you raise it with your DISCO.