Cleaning solar panels on your roof safely requires careful consideration of both effectiveness and the protection of the panels. Here’s a step-by-step guide on how to do it:
Safety and Preparation
- Turn Off the Solar Panel System: Ensure the solar panel system is deactivated before starting to clean. This is crucial for safety to prevent any electrical shock or accidents.
- Assess Accessibility: Avoid climbing onto the roof whenever possible. If necessary, use a sturdy ladder and a safety harness, with someone spotting you.
- Wear Suitable Footwear: Use shoes with good grip to reduce the risk of slipping.
Cleaning Steps
- Gather Cleaning Materials:
- A long-handled soft-bristle brush or sponge to avoid scratching the panels.
- A bucket with mild soap or a soap-free cleaner (e.g., Dawn dish soap is gentle and effective).
- A hose with a gentle spray nozzle for rinsing; avoid pressure washers as they can damage the solar cells.
- A squeegee on a pole to minimize streaks and water spots.
- Clean the Panels:
- Dip the brush or sponge in the cleaning solution and gently scrub the panels while standing on the ground, if possible.
- Use the hose to thoroughly rinse the panels with a gentle spray, ensuring no soap residue remains.
- Dry the Panels:
- Use a squeegee to remove excess water, or let them air dry. Drying prevents water spots, especially in areas with hard water.
What Not to Do
- Avoid Harsh Chemicals: Refrain from using bleach, ammonia, Windex, or abrasive cleaners as they can damage the panels.
- No Pressure Washers: Never use a pressure washer, as high pressure can damage the panels.
- Avoid Temperature Extremes: Do not clean during extremely hot days to avoid thermal shock to the panels.
Tips
- Clean panels every six months or more often if they are exposed to heavy pollution, bird droppings, or other contaminants.
- Consider professional cleaning if you’re unsure or if the panels are in a difficult-to-reach location.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-can-i-safely-clean-solar-panels-on-my-roof/
