Renewable energy sources are environmentally friendly alternatives that can be replenished naturally on a human timescale.
Here are the seven main sources of renewable energy:
Solar Energy: Captured from sunlight using photovoltaic cells (solar panels) to directly convert sunlight into electricity or through solar thermal systems to generate heat for water or space heating.
Wind Energy: Generated by harnessing the kinetic energy of wind through wind turbines, which convert it into electricity.
Hydropower (Hydroelectric Energy): Derived from the gravitational potential energy of water as it flows or falls. It's captured by dams or turbines in rivers and canals to generate electricity.
Geothermal Energy: Utilizes the Earth's internal heat from volcanic activity or natural decay of radioactive isotopes to produce electricity or provide direct heating.
Biomass Energy: Generated from organic materials such as wood, agricultural residues, and even waste. Biomass can be burned directly for heat or converted into biofuels like ethanol and biodiesel.
Tidal Energy: Generated by the gravitational pull of the Moon and the Sun on Earth's oceans, causing tidal movements. Tidal energy can be captured using underwater turbines.
Ocean Energy (Wave Energy): Captures the energy from the motion of ocean waves using devices like wave buoys, oscillating water columns, or submerged structures.
These renewable sources of energy have the advantage of being sustainable and producing minimal to no greenhouse gas emissions compared to non-renewable sources. They play a crucial role in addressing environmental concerns and diversifying the global energy mix.
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