Revealed | Can Solar Roof Tiles Generate Electricity in Rainy Days

Reduced light: When it rains, clouds block the sunlight, resulting in a much lower intensity of light reaching the ground. This means that the amount of sunlight received by the solar roof tiles is reduced, which in turn reduces the efficiency of power generation.

Rain Cover: When rain falls on the roof tiles, although most of it is quickly drained away, a thin film of water may still form within a short period of time. This water film will reflect some of the light, further reducing the absorption of solar energy.

Temperature drop: Rainy days are usually accompanied by a drop in temperature, and the efficiency of photovoltaic cells is positively correlated with temperature to some extent. Therefore, a drop in temperature may also lead to a slight decrease in power generation efficiency.

Despite the many adverse effects of rain on solar power generation, solar roof tiles are not completely incapable of generating power in rainy weather. The key lies in their unique design and performance.

High-efficiency materials: Modern solar roof tiles are made of high-efficiency photovoltaic materials that capture as many photons as possible to generate electricity, even in low-light conditions.

Waterproof design: Solar shingles have excellent waterproof performance, ensuring that rainwater cannot penetrate inside the panels and cause damage. At the same time, their surface design helps to drain water quickly, reducing the effect of water film on light reflection.

Comprehensive Benefits: Although the power generation efficiency is lower in rainy days, the high efficiency of solar roof tiles in sunny days is enough to make up for this. In addition, solar roof tiles can reduce a building's energy consumption, providing long-term energy savings and environmental benefits.

Therefore, although solar roof tiles will be less efficient in generating electricity in rainy days, it does not mean that they cannot generate electricity at all. Their highly efficient materials and waterproof design ensure that they can provide a certain amount of power output even under unfavorable conditions.