How to cleaning solar panel at home

How to wash solar panels: Dust, dirt, and bird droppings can reduce a solar panel’s output by 15-25%. Cleaning them properly helps keep performance high. 1. Pick the right time Clean early in the morning or late in the evening when the panels are cool. Washing hot panels in direct sun can cause thermal shock and leave streaks. 2. Gather your supplies You’ll need: A soft brush or squeegee on an extension pole A bucket with lukewarm water + a few drops of mild dish soap A garden hose with a low-pressure spray nozzle A microfiber cloth Avoid high-pressure washers, abrasive pads, harsh chemicals, and bleach. They can damage the panel surface and seals. 3. Cleaning steps 1. *Rinse first*: Spray with low-pressure water to remove loose dust. This prevents scratching when you scrub. 2. *Wash gently*: Dip the soft brush in soapy water and wipe in straight lines from top to bottom. Don’t use circular motions. 3. *Rinse again*: Wash off all soap with clean water. Soap residue attracts dirt faster. 4. *Squeegee dry*: Pull water off to prevent water spots, especially if you have hard water. 4. Safety tips Don’t walk on panels unless the manufacturer says it’s safe. Most aren’t designed for it. If the roof is steep or high, hire a professional. A fall isn’t worth it. Check for cracks, loose wiring, or corrosion while you’re up there. If you see damage, call a technician instead of cleaning yourself.