What is the primary energy?

Primary energy is any energy that exists naturally and the human being has not been modified into another form. Examples of primary energy sources include both renewable sources such as wind and solar energy, and non -renewable sources such as fossil fuels. When primary energy sources are processed in a power plant or other device, they are converted into "carriers" or secondary energy sources. These include fuel and electricity. Primary energy is a relevant topic for the statistical analysis of energy use because it determines the supply of energy available for human activities. Fossil fuels produce a large amount of energy proportional to their unit weight, which makes them the most effective choice for energy production. Fossil fuel problems include their environmental impact - the burning of these materials released atmosphere that cannot be easily absorbed - and the fact that they are non -renewable is a large amount of carbon dioxide. Substances, jaCoal and oil are produced for millions of years after the decomposition of biological organisms. Human society draws much greater from fossil fuels than can be restored, which is unavoidable deficiencies.

Alternative energy sources have been increasingly being investigated as possibilities as the offer of fossil fuels decreases. Nuclear reactors create power from uranium, the primary energy source found naturally on Earth. Although nuclear power plants can generate large amounts of energy from a small amount of uranium, nuclear energy still represents only a small percentage of worldwide energy production due to environmental and safety risks and political factors. Uranus also technically represents a non -renewable source because it is not added to Earth sufficiently high enough to counteract the use of a person.

solar, wind and hydro power are examples of technologies that draw on renewable primaryEnergy sources - energy sources that are constantly complemented by natural processes. Biomass is another example. The energy from the Sun is sequential in plants through photosynthesis, a biochemical process by which the plants convert sunlight into energy. After burning, plants release this energy. Biofuels, solid or liquid fuels improved from plants are secondary energy products that use this principle.

Since primary energy sources, such as fossil fuels, will become more difficult to reap to reduce the offer, comes the ratio known as the return on investment (EROI). Eroi is the ratio of the amount of energy obtained from the primary energy source to the amount of energy spent on its acquisition. If the source requires more energy than can be obtained from it, Tslepice is no longer economically viable to monitor this source because the energy will be lost in this process. Although Eroi has been criticized for excessive simplification of whoeverThe plexic energy harvest process remains a factor in the industry and government to determine how to save energy and invest in various primary energy sources.