Renewable energy refers to power derived from natural sources that are continuously replenished, such as sunlight, wind, water, biomass, and geothermal heat. Unlike fossil fuels, these sources do not deplete over time and have minimal environmental impact.
The presentation outlines key types of renewable energy:
•     Solar: Converts sunlight into electricity or heat.
•     Wind: Harnesses air movement to generate electricity.
•     Hydropower: Uses flowing water to produce energy.
•     Biomass: Utilizes organic material for heat, electricity, and biofuels.
•     Geothermal: Taps into Earth’s internal heat for power and heating.
•     Ocean Energy: Emerging technologies that exploit tides, waves, and thermal gradients.
The importance of renewable energy is emphasized through its environmental benefits, economic advantages, and public health improvements. It offers a sustainable solution for future generations, reduces dependence on imported fuels, and mitigates pollution-related health risks.