The world has a myriad of energy sources. In 2018, fossil fuels, such as oil, gas and coal, comprised over 81 percent of the energy consumed. Renewable energy sources, such as solar power, wind power hydroelectricity and biomass, account for 14 percent. Nuclear energy accounts for another 5 percent. Different countries employ different mixes of energy sources, balancing economic needs with environmental concerns.
Nature’s energy is available in a variety of forms: sun, wind, waves, and ocean. When harnessed and converted into more practical forms of energy, such as heat or electricity, these are called primary sources. When these energy sources are used up, they become non-renewable energy sources.
Many fossil fuels, as well as some of the other sources of energy that aren’t renewable are damaging the environment. Oil mining, for example can cause the destruction of our forest ecosystems of the planet. Fracking (hydraulic fracturing) could cause water pollution and earthquakes. Carbon dioxide is https://leonardogiombini.it/2019/01/24/da-costruttore-le-biomasse-come-fondazioni/ released when coal is burnt which contributes to global warming.
Fortunately that many of the most promising energy sources are sustainable and renewable. Hydropower, solar power and wind for instance, could generate electricity without having to dig for new supplies.
Tidal and Wave Power are two other renewable energy sources that are emerging. To be used on an enormous scale, these technologies need to have effective distribution networks. These need to be built which will require the use of non-renewable energy sources. In the end, these sources aren’t enough to supply the majority of our energy needs. It is important to be aware that prices for renewable energy equipment have dropped significantly in the past few years, and the efficiency is growing quickly.