Nowadays the most common energy resources come from Fossil Fuel, which according to research it shows that more of 85% of all energy that is consumed in the United States. It takes millions of years for the Fossil Fuel to actually develop and ready to be used, and the main concern of Fossil Fuel is that it cannot be consumed over and over again or reused. Through this analysis it can be assumed that because it takes millions of years for the fossil fuel to develop, and we came up with two assumptions that would lead the innovation of producing energy using different resources. The first assumption is that there is more fossil fuel that is used rather than what is provided or reserved by the nature. This act leads to second assumption that human being could not be dependant on fossil fuel as energy resources in the long run. There are many natural resources such as Coal, oil, and other natural resources that are limited and could not be renewed same as Fossil Fuel. As a result, scientist must find a way to prevent such extinction by inventing a new way of producing energy that is renewable and can be reused. Renewable energy is received from natural gasses that hold unlimited quantities as they can be reused and form a cycle. Example of renewable energy includes wind energy, solar energy, hydrothermal energy, and geothermal energy.
Wind energy is considered as one source of renewable energy. Wind energy was first found in 1979 with the capability to produce between 20 to 30kW each wind will. This use of this method has rapidly increased and even used globally, research shows that there are thousands of wind turbines that operate within these days which can be assumed around 120,791 MW is produced. WWEA (Worldwide Wind Energy Association) predicts by the end of year 2010 there will be 160GW of energy capacity produced worldwide. This amount of energy definitely useful as a replacement for electricity, even though wind energy only produce around 1.5% of the worldwide electricity, there has been an rapid growth and even doubled the quantity within the last 3 years between 2005-2008.
Currently there are two types of wind mills. They are classified according to the axis of the rotating shaft; one vertical and one horizontal. But most of the used wind mills have horizontal axis. Horizontal-axis wind mill has blades similar to airplane propellers. On the other hand, a vertical-axis wind mill has blades that go from top to bottom. As a result, vertical-axis mill machines are less likely to be used nowadays. Large scale of “wind farms” is connected to local electricity power transmission network, with smaller turbines used to provide electricity power for isolated are. This method is one way to produce energy that is favored by many people as an alternative of fossil fuel. Besides it can be reused, it can be easily and widely distributed; however the most important thing is that it harmless the environment. Thus, wind energy is one way of distributing energy resources without harming the environment, unlike fossil fuel that would create and harm the environment such as the increase of global warming.
Solar energy is unlimited energy resources that provide all human and nature in this planet. We all know that without solar energy, it is not possible for all human and nature to be existed until these days. The heat and radiation of sun can be described as solar energy. One of the easiest and main uses of solar energy is heating, as heat can be converted into thermal energy and can be used to heat water and other things. Moreover solar energy can be also converted into electricity power through photovoltaic system or solar power plants.
Firstly how photovoltaic system works is by converting the sun’s radiation into electric power. The Photovoltaic system is commonly used in remote locations that are not connected to a stiff electrical. Example such as power in calculator and watches are...