Icy Interference: Investigating Snow's Effect on Solar Panels

Overview

Solar panels are increasingly prevalent across Canada; however, their performance during long winter conditions remains a concern. This study examined the effect of snow accumulation on solar panel energy production at a condominium in Bridgewater, NS. Measurements were conducted in January and February 2026 to record snow depth on panels, followed by snow removal to assess changes in output. Results indicated that power generation ceased when snow accumulation reached 5cm. Following snow removal, energy output increased by a factor of ten or more. However, winter power production in this study was only 26% compared to the previous summer's production. The maximum annual energy gain from clearing snow off these panels was only 10.3%, assuming complete snow coverage for 3 months. Findings from this study offer guidance to homeowners to help them assess whether clearing panels might be justified: financial savings, practicality, snow accumulation, and availability of battery storage.

Awards (1)

• Selected for CWSF 2026

Competition history

• CWSF 2026 Energy

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