☀️ What Is Solar Energy & How Does It Work
Key Takeaways
✔️ Solar energy converts sunlight directly into electricity
✔️ India receives 4–6 kWh/m²/day of sunlight
✔️ Rooftop solar cuts bills by 70–90%
✔️ Subsidy available up to ₹78,000
☀️ What is Solar Energy?
Solar energy is energy derived from the sun's radiation. It is the most abundant energy source available on Earth.
💡
India's Solar Advantage
India receives 300+ sunny days annually, making it one of the best places for solar investment.
⚡ The Photovoltaic Effect
1 Photons hit the silicon cell.
Sunlight hits the solar panel and knocks electrons loose.
2 Electric field creates flow.
The cell's internal field forces electrons to move in one direction.
3 Movement creates power.
This flow results in direct current (DC) electricity.
🔧 Components of a System
- Solar Panels: To capture sunlight.
- Inverter: To convert DC to AC power.
- Mounting: To hold panels at the right angle.
- Net Meter: To track exports to the grid.
💰 Generation & Savings
| System Size | Suitable For | Monthly Generation | Annual Saving |
|---|---|---|---|
| 3 kW | 2–3 BHK Home | 330 UNITS | ₹26,000–30,000 |
| 5 kW | 3–4 BHK / Villa | 550 UNITS | ₹45,000–55,000 |
🚀 Why Solar Makes Sense
Most residential systems in India pay for themselves within 4 to 5 years, providing nearly 20 years of free electricity thereafter.