மின்சார உற்பத்தியின் உண்மை முகம்

Electricity generation is the process of transforming various forms of energy into electrical power, governed by the principle that energy cannot be created or destroyed, only changed from one form to another. While conventional generation relies heavily on burning fossil fuels, the resulting pollution and global warming have driven a shift toward clean, renewable energy.

Thermal electricity and global warming

Most conventional electricity is thermal power produced by crushing and burning coal to heat water into steam, which spins a generator. In India, coal accounts for about 60 percent of electricity generation, releasing massive volumes of sulfur dioxide, nitrogen oxide, and carbon dioxide that cause severe heart and lung illnesses. These greenhouse gases trap heat in the atmosphere just like a glass greenhouse, raising global temperatures, melting polar ice, and pushing sea levels higher.

How a GravityLight works

• A suspended weight hung from a cord is pulled downward by the natural force of gravity.
• As the weight slowly falls over twenty minutes, it rotates a connected pair of bicycle wheels.
• A drive belt attached to the larger wheel turns a generator to convert gravitational potential energy into electrical energy.
• The generator supplies power directly to an LED lamp without requiring fuel, batteries, or grid electricity.

Global clean energy solutions

Renewable energy generates power from natural sources like sunlight, wind, and flowing water without harming the environment. Nations around the world are actively transitioning to clean alternatives, such as Norway producing 98 percent of its electricity from hydro power and Sweden generating over half of its power from renewable sources. In India, Diu Smart City became the first city to operate entirely on renewable energy during the daytime by installing rooftop solar panels.

Renewable energy progress in India

• India ranks fifth globally in overall renewable energy capacity, fourth in wind power, and fifth in solar power.
• Renewable energy and hydro power together contribute more than 34 percent of the country's installed power capacity.
• Proposed projects like the smart waterways system by engineer A.C. Kamaraj aim to generate 1,200 megawatts of hydro electricity for Tamil Nadu.
• Shifting travel to waterways also helps lower vehicle emissions on roads while providing a long-term solution to severe drinking water shortages.