Is your solar inverter losing efficiency? — Australia
Your inverter converts DC power from your panels into usable AC electricity. When it degrades or malfunctions, your entire system's output drops — sometimes by 10–25%. Here's how to spot inverter issues early and what to do about them. This guide is tailored for Australian solar owners, where high UV exposure and extreme temperatures make these issues particularly relevant.
Symptoms to watch for
Signs that this issue may be affecting your system
Inverter efficiency loss
ModerateDegradation or malfunction in the inverter reducing DC-to-AC conversion efficiency. Often indicated by error codes or unexpected shutdowns.
What you can check yourself
Actions you can take today without professional help
Inverter efficiency loss
Check your inverter display for error codes or red/amber warning lights. Compare current output to the inverter's rated capacity.
When to get a professional inspection
Signs you need professional help
Expected inspection costs
Drone thermal audit
Most comprehensive option
Handheld thermal scan
Best for smaller systems
Electrical inspection
Inverter and wiring only
Find inspection providers
Is your system affected?
Use our free Solar Loss Checker to get a personalised diagnosis with an action plan.
Based on conservative solar performance modelling and published degradation data
Updated April 2026 · Structured performance modelling
How we calculate →