Quick Answer
Clean solar panels in winter by using a soft-bristled brush, a mixture of water and a non-ammonia soap, and a squeegee to remove dirt, dust, and snow. Avoid using high-pressure washes or harsh chemicals. Clean panels when snow-free or partially melted.
Preparing for Cleaning
Before cleaning solar panels in winter, ensure the temperature is above freezing and the snow has melted or is minimal. Use a soft-bristled brush to gently sweep away loose debris and dust from the surface. This helps prevent scratching the panels during the cleaning process.
Cleaning the Panels
Mix 1 cup of non-ammonia soap with 1 gallon of water to create a cleaning solution. Dip a soft cloth or squeegee into the solution, wring it out thoroughly, and clean the panels in sections. Avoid using high-pressure washes or harsh chemicals, which can damage the panels or their coatings.
Drying the Panels
Use a squeegee to remove excess water from the panels, paying particular attention to the edges and corners. This helps prevent water spots and ensures the panels can absorb sunlight efficiently. If needed, use a microfiber cloth to dry the panels further, taking care not to scratch the surface.
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