The World Uses a Variety of Different Energy Sources

The world is dependent on a range of energy sources. In 2018 fossil fuels such as oil, gas and coal, made up more than 81 percent of energy consumed. Renewable energy sources such as solar energy, wind power biomass, hydroelectricity and biomass comprise 14 percent. Nuclear energy is responsible for another five percent. Different countries have different sources of energy to meet the needs of their economy and environmental concerns.

Energy is present in nature in many forms: sunlight as well as wind, waves ocean and more. When harnessed, and transformed into more practical forms of energy, such as heat or electricity, these are known as primary sources. These sources of energy become non-renewable sources of energy https://leonardogiombini.it/2019/01/24/da-costruttore-le-biomasse-come-fondazioni/ when they are exhausted.

The environment is damaged by many fossil fuels, along with other energy sources that aren’t renewable. For example mining for oil may take away the planet’s forests. Fracking (hydraulic fracture) can lead to earthquakes and water pollution. The burning of coal releases carbon dioxide, contributing to global warming.

Fortunately, the majority of the most promising sources of energy are sustainable and renewable. Wind, solar and hydropower produce, for instance, electricity without having to dig for new sources.

Tidal and Wave Power are also sustainable energy sources that are gaining popularity. To be used at large scale, these sources of energy require efficient distribution networks. This requires the use of non-renewable energy sources to build these networks. As a result, these sources are not yet sufficient to meet the majority of our energy requirements. However, it’s important to keep in mind that costs for renewable energy equipment have come down dramatically over the past couple of years, and efficiency is rising rapidly.