The issues that surround the use of fossil fuels, especially in case of climate change, were considered earlier than we think. In 1896, Svante Arrhenius, a Swedish scientist, was the first person stating that the use of fossil fuel could contribute to global warming.
This issue has become a hot topic for the last few decades. Nowadays, there is a general shift towards environmental awareness while the sources of energy are coming under closer scrutiny. Therefore, a number of alternative energy sources have risen and contributed something positive when being compared to fossil fuels. Lower emissions, lower prices, and the reduction of pollution are all advantages which the use of alternative energy can provide.
Here we write down the list of the most prominent alternative energy sources as well as the benefits they offer and potential for increased uptake in the near future.
Hydrogen is completely clean burning fuel, unlike any other form of natural gas. Hydrogen gas cells emit only warm air and water vapor when in use.
However, it is mostly derived from the use of fossil fuels and natural gas. Therefore, it can be argued that the emissions which are created to extract hydrogen gas counteract the benefits of its use.
Although the process of electrolysis, essential when splitting water into oxygen and hydrogen, makes this less of a problem, electrolysis can still rank below the previous methods for extracting hydrogen, despite the fact that research continues to make it more efficient.
Tidal energy uses the water power to generate energy, much like with the hydroelectric method. However, in many cases, its application has more in common with wind turbines.
The potential of this fairly new technology is enormous. A recent report in the UK estimated that tidal energy could meet up to 20% of the current electricity demands of this country.
The use of Tidal Stream Generators is the most popular form of tidal energy generation. These use the ocean’s kinetic energy to power turbines, without producing any waste of fossil fuels.