## The Hidden Cost of Dirty Solar Panels Solar panels are a significant investment — but most owners don't realise that a thin layer of grime can slash their energy output dramatically. ### The Science Behind It Solar panels work by converting sunlight into electricity. When dust, bird droppings, pollen, and pollution coat the surface, less light reaches the photovoltaic cells. Studies show output can drop by **30–60%** without regular maintenance. ### How Often Should You Clean? For most commercial installations in Yorkshire, we recommend **twice yearly** at minimum — once in spring after pollen season, and once in autumn before winter. ### Professional vs DIY While it's tempting to use a hose, improper cleaning can scratch panels and void warranties. Our trained teams use soft brushes, purified water, and specialist equipment to clean safely. ### Insurance & Warranty Considerations Many solar panel manufacturers require regular professional maintenance as a condition of their warranty. Keeping records of your cleaning schedule could save you thousands in warranty claims. --- Get in touch to arrange a solar panel inspection and clean across Yorkshire.