Will Winter, Fog, Smog Cut Your Rooftop Solar Savings? What Homeowners Need To Know

Winter can bring relief from scorching temperatures, but it may also bring an unexpected problem for households that have installed rooftop solar panels. Shorter days, weaker sunlight and persistent fog can reduce electricity generation just when homeowners are hoping to keep their power bills under control.The impact can be particularly noticeable in northern India, where fog and pollution frequently limit sunlight during winter mornings.

On days when sunlight struggles to reach solar panels, electricity generation can fall sharply.However, winter does not necessarily mean solar panels become less efficient. Cooler temperatures can actually help panels perform better.

The real challenge is the amount of sunlight available and how long it lasts.How Much Does Solar Generation Fall In Winter?The decline depends largely on where a solar system is installed and the weather conditions it faces. In Delhi-NCR and other parts of northern India, rooftop solar generation can experience substantial seasonal variations.