Solar Physics Fundamentals
The science behind solar energy production
← Back to blog- 1
How Solar Panels Actually Convert Sunlight to Electricity
A clear, jargon-free explanation of the photovoltaic effect — from photons hitting silicon to usable AC power in your home.
- 2
Why Your Solar Panels Produce More in Spring Than Summer
The temperature coefficient explained — why cooler sunny days in March and April often outperform the scorching heat of July and August.
- 3
Direct vs Diffuse Sunlight — Why Cloudy Days Still Generate Power
Not all solar radiation is the same. Understanding the three components of sunlight explains why overcast days still produce electricity.
- 4
What Tilt and Azimuth Actually Do to Your Annual Yield
Two angles define how much energy your solar panels capture. Learn why they matter and why real-world results are more forgiving than you'd think.
- 5
The Three Numbers That Define Your PV Setup (And Why Volcast Only Needs Them)
Tilt, azimuth, and rated power — these three parameters are all a physics-based forecast needs to predict your solar production.