Solar & Batteries

10 Signs Your Solar Panels Are Underperforming

Published 5 Jun 2026

What this video covers

Spot output drops, inverter faults & shading.

Your solar panels could be losing thousands in savings without you knowing. Here are ten signs of underperformance, ranked from least to most critical. From Axiom Eco Homes.

In this video

  1. 0:00 Intro
  2. 0:11 10. Inverter Older Than 10 Years
  3. 0:20 9. Energy Bills Higher Than Expected
  4. 0:31 8. Visible Cracks or Delamination
  5. 0:41 7. New Shading From Trees or Extensions
  6. 0:54 6. Panels Dirty or Bird Droppings
  7. 1:04 5. Generation Meter Reading Wrong
  8. 1:13 4. Inverter Shows Red or Orange Light
  9. 1:23 3. Output Drops 25% Year-on-Year
  10. 1:33 2. Low Daytime Usage Hurts Savings
  11. 1:42 1. No Battery for Excess Energy
  12. 1:52 Where to start