The world uses many different energy sources. In 2018 fossil fuels such as oil, gas and coal, comprised more than 81 percent of energy consumed. Renewables, such as solar power, wind power, hydroelectricity, and biomass, account for 14 percent. Nuclear energy accounts for another 5percent. Different countries employ different mixes of energy sources, and are able to balance the needs of the economy with environmental concerns.
Nature is a rich source of energy in many forms: sunlight, wind, waves, oceans and more. When harnessed, and transformed into more efficient forms of energy, like electricity or heat, these are known as primary sources. These energy sources become non-renewable sources of energy when they are exhausted.
Many fossil fuels and some of the other energy sources that are not renewable are damaging the environment. Oil mining, for instance can cause the destruction of our forests that are virgin to the earth. Hydraulic fracture (fracking) can cause earthquakes and water pollution. Carbon dioxide is released when coal is burned which contributes to global warming.
Fortunately some of the most promising energy sources are sustainable and renewable. Hydropower, solar power and wind for instance, are able https://leonardogiombini.it/2020/06/02/primi-3-punti-chiave-di-unesperienza-centralizzata/ to produce electricity without the need to search for new sources.
Other renewable energy sources are gaining momentum, such as tidal and wave power. But, in order to be used in a large-scale manner these technologies need effective distribution networks. This requires the use non-renewable energy sources to construct these networks. These sources aren’t enough to provide the majority of our energy needs. It’s vital to remember that the prices of renewable energy equipment has fallen dramatically in recent years and that efficiency is increasing.