Very Short Question and Answers - Conservation of Energy Resources

Conservation of energy resources means using energy carefully to waste less, reduce pressure on limited fossil fuels, lower pollution and greenhouse gases, and ensure energy availability for future generations.

Sustainable energy use is needed because fossil fuels are finite and can be depleted, burning them causes pollution and health issues, contributes to climate change, increases economic costs, and affects energy access equity for growing populations.

The three main strategies are: using energy-efficient devices, increasing public awareness and changing behaviour, and developing alternative renewable and cleaner energy sources.

Examples include LED bulbs, which use up to 80–90% less energy than incandescent bulbs, and star-rated refrigerators that consume less electricity.

The UJALA (Unnat Jyoti by Affordable LEDs for All) scheme distributes millions of LED bulbs to reduce power use.

Public awareness educates people about simple habits like switching off unused devices, using natural light, and encourages community actions such as carpooling and festivals with less lighting, reducing overall energy demand.

Energy audits identify areas where energy is wasted in industries or offices, allowing implementation of corrective measures to reduce consumption.

Two renewable energy sources used in India are solar energy (e.g., rooftop solar panels, Bhadla Solar Park) and wind energy (e.g., wind farms in Tamil Nadu and Gujarat).

Micro-hydro projects are small hydroelectric plants on rivers and streams providing local electricity without large dams, commonly used in the Himalayan states to power remote villages.

Biogas plants produce methane from cattle dung and organic waste for cooking and lighting, reducing dependence on fossil fuels and decreasing indoor pollution.

LED bulbs use up to 80–90% less energy than incandescent bulbs, making them much more energy efficient and economical.

Inverter air-conditioners adjust compressor speed according to cooling needs, using less energy compared to fixed-speed models that run at full power continuously.

Simple changes include switching off lights and fans when not in use, using natural daylight and ventilation, unplugging chargers when not charging, and using power strips to disconnect multiple devices.

Burning fossil fuels releases CO2, a greenhouse gas that causes global warming, leading to climate change effects like melting glaciers and erratic monsoons.

The PAT scheme sets energy-efficiency targets for energy-intensive industries to reduce energy consumption and promote cleaner production.

Smart meters show real-time electricity consumption, helping consumers monitor and adjust their usage to save energy.

Two emerging alternative energy sources are green hydrogen, produced using renewable energy, and electric vehicles to reduce petrol and diesel use.

The International Solar Alliance, initiated by India and France, promotes global cooperation to expand solar energy use and share technology.

Students can start Energy Clubs, conduct energy audits, organize switch-off drives, build solar cooker models, and hold awareness campaigns.

Dos: Use LED bulbs and star-rated appliances; switch off devices when not in use. Don'ts: Leave fans and lights on in empty rooms; keep chargers plugged in unnecessarily.