Introduction
Canada’s vast geography means diverse climates—from snowy winters in Quebec to sunny summers in Alberta. Understanding how temperature, sunlight hours, and weather patterns affect solar panel efficiency can help homeowners maximize their solar investment.
1. Temperature and Panel Performance
Contrary to popular belief, solar panels operate more efficiently in cooler temperatures. High heat can reduce voltage output by up to 0.5% per °C above 25°C. In provinces like Ontario and British Columbia, moderate summer heat ensures panels maintain near-peak performance.
2. Sunlight Hours by Province
Southern regions receive up to 3,000 sunshine hours annually, while northern territories average around 2,000.
- Ontario & Alberta: ~2,500–3,000 hours
- Quebec & Manitoba: ~2,200–2,700 hours
- Yukon & Northwest Territories: ~1,800–2,200 hours
Greater sunlight yields higher daily kWh output. Check our solar assessment tool for localized forecasts.
3. Snow and Reflectivity
Snow cover can temporarily reduce output but also increases diffusion through albedo (reflection). Panels tilted at 35°–45° shed snow naturally, ensuring rapid recovery after storms. Regular cleaning and using anti-slip brushes can maintain performance.
4. Seasonal Variations and Energy Storage
Winter days are shorter but often clearer. Pairing with battery storage allows excess summer production to offset winter consumption. Learn about our battery storage solutions.
Conclusion & Call to Action
Canada’s climate offers both challenges and advantages for solar energy. By selecting the right tilt, keeping panels clear of snow, and leveraging storage, homeowners can achieve consistent efficiency year-round.
Ready to harness Canada’s climate for maximum solar output?
Contact Get-Can Solar for a free site evaluation!
