May 27, 2024

Energy comes from a variety of types of energy. They are transformed into secondary forms, such as fuels and electricity. They are then transmitted through various channels in order to provide the power that runs our lives, factories, homes and cars. Energy sources can be classified as renewable or non-renewable.

Renewable (or clean) energy is produced from natural resources that are constantly replenished. Examples include wind power, solar power, water power and geothermal energy. Fossil fuels (coal natural gas and oil), are non-renewable, because they form much more slowly than we do.

Solar energy can be harnessed on one rooftop or in large solar power plants. Solar energy can be converted into photovoltaic energy, which generates electricity directly. Water can be harnessed to create hydropower, or be utilized to create tide and wave energy. Geothermal energy is sourced from reservoirs of hot water underground. Bioenergy comes from diverse organic sources like woody crops or dung from livestock, as well as human waste.

Renewable energy is not only green but also more affordable than fossil fuels. However, the challenge is that renewables require massive infrastructure to harvest and transport the energy, which can result in difficult trade-offs in terms of environmental, social and economic reasons. However, the advancement of these technologies continues to increase, and they are making inroads against the more traditional fossil fuels. Renewable energy may be cheaper in the long term than coal and oil.

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