How to Safely Shut Down Your Solar Inverter Before a Cyclone

Preparing your solar system for a cyclone is crucial to prevent damage from high winds, flying debris, and electrical hazards. Follow these simple steps to safely turn off your solar inverter and protect your system.

Step 1: Power Down the Solar Inverter

1. Locate your inverter – Typically mounted near your switchboard or meter.
2. Turn off the AC mains switch – Found in your switchboard, usually labeled “Solar Supply Main Switch” or “Inverter AC Isolator.

Step 2: Shut Down the Solar DC Isolators

1. Find the DC isolators – These may be near the inverter or on the roof.
2. Switch all DC isolators to OFF – This ensures no power is flowing from the solar panels.

Step 3: Confirm the System is Fully Off

• Check the inverter display – It should be completely off (no lights or readings).
• Verify all isolators (AC & DC) are switched off.

After the Cyclone: How to Safely Restart Your Solar System

1. Inspect your system – Look for any visible damage before turning it back on.
2. Restart in reverse order – Turn on DC isolators → Inverter → AC mains switch.
3. If you suspect damage, do not turn the system back on – Contact a licensed solar electrician for an inspection.

By following these steps, you can safeguard your solar system during extreme weather events. If you need assistance with solar maintenance or repairs, reach out to O'Brien Electrical and Solar Underwood today.