The Different Types of Energy
The various types of energy are the basic materials from which power is created. They are converted into secondary forms, such as electricity and fuels, then transferred through various channels to generate the power that powers our houses, industries, and cars. Energy sources are categorized as renewable and non-renewable.
Renewable (or clean) energy is generated from natural sources that are constantly replenished. Examples include solar power, wind power, water power and geothermal energy. Fossil fuels (coal, oil and natural gas) are considered non-renewable as they form at a much slower rate than the energy we use them, meaning they will eventually be exhausted.
Solar energy can either be harnessed in large solar power stations or on a single roof. It can also be converted into photovoltaic solar energy which generates electricity directly. Water can be harnessed for hydropower, or it can be tapped for the energy of waves and tides. Geothermal energy is generated from reservoirs of hot water underground. Bioenergy is derived from various organic sources, like woody crops as well as dung from livestock and human waste.
Renewable energy is not only environmentally friendly but also cheaper than fossil fuels. Renewable energy is costly and requires an extensive infrastructure to capture and distribute the energy. This can lead to complicated trade-offs in environmental as well as economic aspects. The advancement of these technologies continues to grow and they are making progress against traditional fuels. In the long run, renewables may even be more affordable than oil and coal.