Will Snow Stop My Solar Panels from Working? Solar Panels Covered in Snow It’s a common concern for Ontario homeowners — “What happens to my solar panels when it snows?” Luckily, snow doesn’t mean your system stops working entirely. Solar panels are installed at an angle, which naturally helps snow slide off when sunlight warms the surface. Most systems in Ontario are tilted 30–45 degrees to optimize solar production and promote snow shedding. Modern solar panels have a smoot