The world relies on a variety of energy sources. In 2018, fossil fuels, such as oil, gas and coal, accounted for more than 81 percent of energy consumed. Renewable energy https://leonardogiombini.it/2018/06/02/leonardo-giombini-e-le-energie-rinnovabili/ sources such as solar power, wind power biomass, hydroelectricity, and biomass make up 14 percent. Nuclear energy is responsible for another 5percent. Different countries employ different sources of energy to meet environmental and economic requirements.
Nature’s energy can be found in a variety of forms such as wind, sun, waves and ocean. When harnessed and transformed into more convenient forms of energy, such as electricity or heat, these are referred to as primary sources. When the energy source is exhausted, they turn into nonrenewable energy sources.
Many fossil fuels, as well as some of other energy sources that are not renewable can be harmful to the environment. For example mining for oil can strip the planet’s pristine forests. Hydraulic fracture (fracking) can cause earthquakes and pollution of water. Burning coal releases carbon dioxide, contributing to global warming.
Fortunately, many of the most promising sources of energy are renewable and sustainable. Wind, solar and hydropower could produce, for instance, electricity without the need to dig for new sources.
Tidal and Wave Power are two more renewable energy sources that are gaining popularity. However, in order to be used in a large-scale manner these technologies need efficient distribution networks. These must be built and operate with the use of non-renewable energy. These sources aren’t enough to provide the majority of our energy requirements. However, it’s important to keep in mind that prices for renewable energy equipment have dropped significantly in the past few years, and efficiency is increasing rapidly.
