Learn Solar is your place for understanding the fundamentals of solar energy. Here you’ll find simple explanations of key solar concepts, technologies, and principles that power modern solar systems. From how solar panels generate electricity to how sunlight intensity, tilt angle, temperature and efficiency affect performance — this category helps you build a strong foundation in solar energy. Perfect for homeowners, students, and anyone curious to learn how solar works.
Introduction Every second, the Sun sends an unimaginable amount of energy toward Earth — enough to power human civilization thousands of times over. But how much of that solar energy…
A PN junction is the heart of every solar cell. It’s where P-type and N-type semiconductors meet, forming a depletion region and an electric field that turns sunlight into electricity. In this post, you’ll learn the PN junction’s working, diagram, and real-life role in generating solar power — explained simply for students, engineers, and homeowners alike.
Before going solar, understand key terms like irradiance, PSH, MPPT, inverter, and payback. This guide simplifies the 10 most important solar concepts with real-life examples from my 5 kW system — so you can size your system and estimate ROI confidently.
Confused between solar thermal and solar PV? This guide explains the key differences, efficiency, cost, and real payback — with insights from my own 5 kW grid-tied solar system in Uttar Pradesh. Learn which solar system truly suits your home in India.
When I was a kid, I used to wonder — why are the wires in our home made of copper?and why does the electrician always wear rubber gloves and slippers…
Air Mass (AM) in solar energy explains how sunlight passes through Earth’s atmosphere before reaching solar panels. This affects both the intensity and spectrum of sunlight that panels receive. Learn how AM1.5 defines the global standard for solar panel testing, how different air mass values impact solar efficiency, and why sunlight at your location directly influences your solar ROI and payback.
Solar panels absorb mainly visible light because silicon’s bandgap (1.1 eV) matches the energy of visible photons. UV photons waste extra energy as heat, while most infrared photons don’t have enough energy. This makes visible light the most efficient source for solar power.
Are you living in a place with high wind speeds or heavy snowfall and still considering installing Solar? Then this post is for you. The strength of the solar panels…
Why do your solar panels produce less than their rated power? Know the difference between the rated and the real-world power of your solar panels.
Want to know how much sunlight your solar panels receive? Learn how to calculate solar irradiance using your system’s output, panel area, and efficiency — with a real 5 kW solar system example. Ideal for solar homeowners and DIYers!