July 2, 2026

You’re staring at a solar panel spec sheet, or maybe a homework problem, and there it is — three terms that all seem to mean “sunlight,” used interchangeably by three different sources. Solar radiation. Irradiance. Insolation. If you’ve come away thinking they’re basically synonyms with fancier syllables, you’re not alone. Most explanations online don’t actually […]

Stand on a rooftop in Dhaka on a clear afternoon and look at the sunlight falling across the concrete buildings. That sunlight feels ordinary. But every hour, an enormous amount of energy is reaching Bangladesh from the Sun—energy that can be converted into electricity, heat, and useful power. Today, solar panels are becoming increasingly familiar