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Guide

Does solar work in rainy weather?

20
February
2024

Solar Panels in Low-Light Conditions

Modern solar panels are engineered to be remarkably efficient, even in suboptimal lighting conditions. This means they can continue generating electricity on cloudy or rainy days, a feature that was once considered a limitation.

While direct sunlight is optimal for maximum energy output, solar panels can harness diffuse sunlight and even ultraviolet rays that penetrate clouds. As a result, they can still produce electricity, albeit at a reduced rate, in shaded areas or during overcast weather.

Solar Panel Performance in Singapore and Southeast Asia

Southeast Asian countries, including Singapore, experience distinct seasonal variations that impact solar panel performance. During rainy seasons, solar energy production can decline by approximately 30-40% compared to peak sunny periods.

However, advanced solar design software has significantly improved the accuracy of predicting seasonal energy production. With precision rates of 80-90%, these tools empower homeowners and businesses to make informed decisions about solar panel installations and potential energy savings.

Solar Panel Efficiency in Different Weather Conditions

Weather Condition Solar Panel Efficiency
Sunny High
Cloudy Moderate
Rainy Low
Overcast Low to Moderate

Note: Efficiency levels can vary depending on panel technology, orientation, and other factors.

Maximizing Solar Energy in Singapore

  • Optimal Panel Orientation: To mitigate the effects of cloudy weather, consider installing solar panels with optimal tilt angles to capture maximum sunlight throughout the year.
  • High-Efficiency Panels: Invest in solar panels with advanced technologies designed to perform well in low-light conditions.
  • Energy Storage: Combine solar panels with battery storage systems to store excess energy generated during sunny periods for use during cloudy or nighttime hours.
  • Professional Design: Consult with experienced solar installers to design a system tailored to Singapore's climate and energy consumption patterns.

For more information on solar panel performance and installation in Singapore, visit:

By understanding how solar panels function in various weather conditions and taking advantage of available resources and technologies, Singapore residents and businesses can harness the power of the sun efficiently and sustainably.