In an era of scarce energy resources and growing environmental damage caused by harmful CO2, the term alternative energy appeared more frequently in our language. Occasionally it is also called renewable or renewable energy.
But what does it mean exactly? Now, this energy comes from sustainable, self-renewing energy sources and is therefore continuously available. Physically, energy can neither consume nor be replaced, but they can be removed to certain systems and other are fed again. The used by us energies come here from different energy sources. They include, for example, the existing heat inside the earth, radiation by the nuclear fusion of the sun, wind, hydro or biomass.The used by us energies come here from different energy sources. They include, for example, the existing heat inside the earth, radiation by the nuclear fusion of the sun, wind, hydro or biomass.
World energy demand is currently however still mainly covered by non-renewable resources such as oil, coal, gas and the production of nuclear power. But this also not very environmentally friendly sources will one day be exhausted. Experts say here still requires an energy potential of up to 50 years. But do not worry -. Scientists and engineers are looking for already successfully in various projects for alternative ways the power of the sun, the water, the wind or renewable resources such as biomass are us in the future so satisfied unlimited. Here you can depending on the geographical and prerequisite different renewable resources "tap". the most interesting energy source is and remains probably the sun, which serves us for millions of years as a light and source of energy. From its rays is obtained by means of modern solar panels or solar power. The wind power is one of the alternative energy sources, but with the crucial disadvantage that it is not constantly available. Nevertheless, in Germany already 5.7% of electricity consumption from wind power.
The geothermal heat is one of the alternative forms of energy. That is a pretty clear clear when one thinks of the boiling magma in the earth's interior, which could free up an enormous amount of energy. The liquid core of the Earth is about 4,000 ° C hot and with this heat and energy potential fully capable to provide an environmentally friendly way with the help of modern technologies, the energy needed.
Another solution for alternative energy represent renewable resources. This is particularly interesting, that even gaseous biomass present, so if microbes ferment organic waste, could be converted into energy. A pioneering and so far rather utopian sounding variant that is the focus of scientific research alternative today, is the fusion of the sun.
If it were possible to ignite such a "solar fire" on the earth, we needed us to procure our necessary amount of energy to worry anymore. Until now, these alternative hopefuls is indeed but still way off.