A dirty solar panel loses 10-25% of its efficiency. In Malaysia's dusty urban environments and rainy seasons, maintenance is key to protecting your investment.
Frequency: How Often?
In the Klang Valley, we recommend cleaning every 6 months. In cleaner rural areas or areas with heavy rainfall, once a year may suffice.
DIY vs Professional Cleaning
DIY (Do It Yourself)
- Cost: Free (water only)
- Risk: High. Slipping hazards, scratching panels with abrasive brushes, or thermal shock from using cold water on hot panels.
Professional Service
- Cost: RM 250 - RM 400 per visit (for standard bungalow)
- Includes: De-ionized water cleaning, visual inspection of cabling, and inverter check.
Warning: Never use detergents or pressure washers on solar panels. It damages the anti-reflective coating and voids the warranty. Use only soft brushes and plain water.
Want maintenance included as part of your solar investment? View our packages with included maintenance to see which bundle covers annual cleaning and servicing at no extra cost.