Green Technology

Topics: Fossil fuel, Renewable energy, Natural gas Pages: 6 (1842 words) Published: December 3, 2012
Green Technologies

Green technology, also known as environmental or clean technology, minimizes impacts on the environment and natural resources. It’s based on concepts such as conserving water and energy, reducing waste and pollution, harnessing renewable energy sources, finding ways to reuse materials, and developing less polluting technologies. Green technology is everywhere these days; in the news, politics, fashion, and of course technology. Green Technology is becoming so widespread throughout the world. People are becoming more energy efficient in their homes by buying water-efficient showerheads that are low-flow models, adjusting their refrigerator and freezer temperatures, buying compact fluorescent light bulbs, buying energy efficient appliances, and by recycling rechargeable devices like cell phones or digital cameras.

As awareness grows about environmental issues such as pollution, human impact on climate change, and depletion of natural resources, so is interest growing in environmentally friendly products and services. For example, the popularity of green cleaning products has increased in recent years. Nontoxic, biodegradable cleaning products are safer for use in the home meaning they are less likely to cause health problems. They also keep harmful chemicals out of the environment. Compact fluorescent light bulbs (CFLs) are another popular eco-friendly product; compared to traditional, incandescent light bulbs, CFLs use way less electricity.

Here are a four of the many types of green technology used today; green energy, vehicles, building and appliances. Green energy as of today is produced by these forms of energy; solar, wind, and hydroelectric power. Solar power or solar energy is a technology that converts the power of the sun into usable energy. It is a resource that cannot be used up by us using it. Much of the world's required energy can be supplied directly by solar power.

There are several types of solar power technology. The first type is solar photovoltaic power. Solar photovoltaic power is used to convert the sun’s rays into electricity through the use of solar panels. Solar energy is generated depending on the amount of Sun the area receives. This method is used most often. The second kind of solar power is solar thermal energy. Solar thermal energy uses the Sun’s rays to heat our homes and water. It uses solar thermal collectors to collect heat energy and spread it through the water in our heating and plumbing systems. The last kind of solar energy is Passive solar energy. Passive solar energy is simply the heating of a home or building through architectural design, window placement and sunroom design without any need for a collector of any kind warms the area (2009 solar power information).

Wind power is the conversion of wind energy into a useful form of energy. It produces no greenhouse gas emissions during operation and uses little land. The construction of wind farms is not as welcomed due to appearances as other sources. Wind energy is though the fastest growing energy source in the world. Since wind depends on the sun, it is a form of solar energy. As long as the sun shines, there can be wind power, making it unlimited. A flaw on wind power is the location of wind plants. Most good wind sites are in rural areas, a long way from cities where electricity is needed most. Another problem includes the noise that turbines create.

Hydro power or hydroelectric power uses the gravitational force of falling or flowing water to produce electrical power. It is the most widely used form of renewable energy. To make hydropower, you have to direct moving water into pipes known as penstock. The fast flowing water in big rivers determines the energy produced. After the moving water is directed into the penstock, it pushes against the blades in the turbine to spin a generator that produces electricity. The other way to get hydropower is a storage system...
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