More on Green Energy
Green energy is mainly sourced from natural sources such as wind, sunlight, rain, algae, geothermal heat or even plants. These sources are renewable and hence are more environmental friendly. For the past thirty years, research and development on DIY green energy has been booming giving rise to promising new technologies that can help reduce our dependence on oil, coal and even natural gas.
Most of the renewable sources of energy are either directly or indirectly sourced from the sun. sunlight can be used directly to heat and light homes or buildings, to generate electricity, for solar cooling, hot water heating as well as a variety of commercial and industrial uses. The heat from the sun also drives winds, whose energy is captured by the turbines. Also, this solar heat causes water to evaporate and when the vapor turns into rain and flows downhill through rivers or streams, the energy can be captured using hydroelectric power.
The renewable energy sources usually have a much smaller impact on the environment than the fossil fuels which usually produce pollutants such as the greenhouse gases which largely contribute to climate change. Moreover, gaining access to the fossil fuels necessitates either mining or deep drilling into the earth many a time in the ecological sensitive locations.
For green energy, it utilizes energy sources that are already available from all over the world including in the rural or remote areas that would not otherwise have had electricity. Advances in renewable energy technologies have also lowered the cost of solar panels, wind turbines orany other sources of green energy.
Along with rain and water, sunlight energy causes plants to grow. The organic matter that makes up these plants is known as biomass. This Biomass can be used to produce electricity, chemicals or even transportation fuels. The use of biomass for any of these purposes is known as bioenergy.
Hydrogen compound is found in many organic compounds including water. It is the most abundant element on earth and once separated from another element, hydrogen can be burned as a fuel or even converted to electricity and thus making a great form of DIY green energy.
Not all forms of green energy are sourced from the sun. Geothermal taps the heat from the earth for various uses including electricity production, and the cooling and heating of buildings. There is also ocean tidal energy that comes from the gravitational pull of the sun and the moon on the earth. In additional to tidal energy, there is the energy of the ocean’s waves which are usually driven by both winds and the tides. The sun also tends to warm the surface of the ocean more than the ocean depths which creates a temperature difference that can be used as a source of energy.
DIY green energy is certainly the way to go for the world as they form a great way to tap energy that does not pollute the environment and one that can be replenished unlike the unrenewable sources. Therefore, it would be great if you joined in the course to promoting a pollution free world!