What is the most common type of renewable energy used in the world?

The most common type of renewable energy used in the world is hydropower. Hydropower is the generation of electricity using the energy of moving water, typically through the use of dams and turbines. This method harnesses the kinetic energy of water flow to generate power, making it a clean and sustainable energy source.

Hydropower has been used for centuries, with early examples including watermills and waterwheels for grinding grain or powering mechanical devices. Today, modern hydropower plants generate electricity on a much larger scale. According to the International Energy Agency (IEA), hydropower represented approximately 16% of the world's total electricity generation in 2020, making it the largest source of renewable energy.

Other common types of renewable energy include:

• Wind power: Wind turbines harness the kinetic energy of wind to generate electricity. Wind power has seen significant growth in recent years and is now a major contributor to renewable energy production.
• Solar power: Solar panels convert sunlight into electricity through the photovoltaic effect. Solar power has become more affordable and accessible, leading to increased adoption around the world.
• Biomass: Biomass energy is produced by burning organic matter, such as wood, agricultural waste, and biogas, to generate heat or electricity. It can be considered renewable if the resources are managed sustainably.
• Geothermal energy: Geothermal power plants use heat from the Earth's core to generate electricity. This form of energy is highly reliable and can produce power continuously, unlike solar and wind energy, which are intermittent.

These renewable energy sources play a crucial role in reducing greenhouse gas emissions and supporting a more sustainable future.