General Studies – Key Concepts (Solar Energy & Sustainability)
1. Renewable Energy
Renewable energy refers to energy derived from natural sources that are replenished continuously, such as solar, wind, and hydropower.
- Environmentally friendly
- Reduces dependence on fossil fuels
- Supports sustainable development
👉 Exam Point: Renewable energy is essential for long-term environmental and economic sustainability.
2. Photovoltaic Effect
The photovoltaic (PV) effect is the process by which solar panels convert sunlight directly into electricity using semiconductor materials.
- Basis of solar panel technology
- Converts solar radiation into electrical energy
- Commonly uses silicon-based cells
👉 Exam Point: PV technology is the backbone of solar power generation.
3. Solar Parks
Solar parks are large-scale solar power projects developed to generate electricity efficiently and attract investment.
- Government-supported infrastructure
- Large-scale power generation
- Enhances energy capacity
👉 Example: Bhadla Solar Park (Rajasthan)
4. Energy Storage
Energy storage systems, especially batteries, are used to store solar energy for use during non-sunny periods.
- Ensures continuous power supply
- Critical for grid stability
- High cost remains a challenge
👉 Exam Point: Storage technology is key to renewable energy expansion.
5. Sustainable Development
Sustainable development means meeting present needs without compromising the ability of future generations to meet their own needs.
- Environmental protection
- Economic growth
- Social equity
👉 Exam Point: Solar energy plays a vital role in achieving Sustainable Development Goals (SDGs).
General Studies | Renewable Energy | UPSC Preparation
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