by Denzil De Vries

Alternative electric energy has seen a marked increase in investment over recent years. As the world responds to the range of crises presented by global warming, viable solutions are being sought to combat the problem. As we continue to burn gas, oil, coal and the world’s rainforests, we are contributing to the acceleration of global warming. The continued depletion of fossil fuels is a problem that has reached critical stages and something has to be done fast before finite resources are completely exhausted. Proponents of alternative electric energy tell us that we can preserve the world’s resources by adopting renewable energy systems. They say that instead of continuing to rely on non renewable fuels we should employ new sustainable technology. Such technology works by generating electricity from abundant sources that can be harnessed quite easily. Most alternative electric energy systems are simple to understand and utilize. There are a few alternative electric energy systems that are quite well known and are already in quite widespread use. These include wind power, hydro power and solar power. Some of these energy systems have actually been around for hundreds of years but just updated to meet current demands. The old windmills that were used by farmers to grind wheat can still be seen as historic artifacts gracing many European landscapes. Modern alternative electric energy windmills now turn to produce electricity instead of mill grain. The basic principles behind the old and the new windmills is essentially the same. Both trap the wind’s energy in great vanes which turn a shaft. Old mill shafts were connected to millstones while their modern counterparts spin turbines that produce electricity. Hydro electric power is an alternative electric energy system that is not new in concept. Hydro power stations are the preferred choice in some areas for providing electricity to a large population. Their main benefits are that they are not expensive to run and they do not pollute the environment. This type of alternative electric energy system is often worked by the force of water in a dam which passes over turbine blades to generate electricity. Prototypes of the modern hydro turbine were huge wheels that turned millstones in the past. Solar power is a very convenient alternative electricity system that is becoming very popular for small user and domestic application. This system is highly adaptable and can be fitted on rooftops. Solar power has been praised for its ingenious simplicity which rests on the invention of the photo voltaic cell. The cells are very small components that trap the sun’s rays and convert it into electricity. The consumer is able to utilize this electricity which is stored in batteries.

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