Since the dawn of human evolution, energy was needed to keep the human race live each day. Formerly, our ancestors utilize the readily available energy from nature that has been giving their community life. Now comes the human desire for improvement. So they devised machines in order to hasten daily processes. That's when they discovered the importance of fossil fuels.

But have we realized the importance of the natural occurring energy we have? There are actually numerous sources that we already have in our surroundings waiting for us to use it. Of the several sources, two sources that standout are wind and solar energy.

Solar energy is available almost everywhere. The Earth receives an enormous amount of heat each day making it available to almost anyone. This has been a source of life on Earth for thousands of years and is still there giving it all it have to us. Formerly, humans have been using the raw solar power. That is, they use the heat itself to heat their home system water. This technique is very helpful and useful for most part. But then as technology grows and so is the need. To make solar energy usable on most applications, converting it into electricity is one important step. Utilizing solar power for electricity can cope with the whole world's need without having to use additional resources. That is, when we will be utilizing it properly.

Another very useful and naturally occurring energy is wind. Wind energy is also available anywhere though you may need to be in a place with more wind blowing to utilize this properly. This is one source which can serve as an alternative for solar power. Wind blows each day without fail and if you happen to be in a place where there are lots of moving air then you can be sure to utilize the best wind energy can offer.

There are still other sources that are being used and being improved and developed. Geothermal energy is the one which echoes solar energy as it uses ground heat. Tidal power is also very promising. This one utilizes ocean current delivered by changing tides. And there's still other ways available. The natural energy we have can certainly cope with our growing need for power sources.

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