Green Power - Reducing the carbon footprint

• By: Admin
• Date: December 13, 2009

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Green energy is the term used to describe sources of energy that are considered to be environmentally friendly and non-polluting, such as geothermal, wind, solar, and hydro. Sometimes nuclear power is also considered a green energy source. All energy producing technology has some impact on the environment, but Green energy sources are often considered "green" because they are perceived to lower carbon emissions and create less pollution.

Green energy is commonly thought of in the context of electricity generation. A fuller picture requires appreciation of efficient energy use as well as mechanical power, heating and cogeneration. Consumers, businesses, and organizations may purchase green energy to support further development, help reduce the environmental impacts of conventional electricity generation, and increase their nation’s energy independence. Renewable energy certificates (green certificates or green tags) have been one way for consumers and businesses to support green energy.

The Green Power Partnership encourages organizations to buy green power as a way to reduce the environmental impacts associated with traditional fossil fuel-based electricity use.The nearly 950 organizations on this list are collectively buying more than 14.3 billion kilowatt-hours of green power annually, which is the equivalent amount of electricity needed to power nearly 1.5 million average American homes for one year.The Green Power Partnership is a voluntary program that encourages organizations to buy green power as a way to reduce the environmental impacts associated with purchased electricity use. The Partnership currently has hundreds of Partner organizations voluntarily purchasing billions of kilowatt-hours of green power annually. Partners include a wide variety of leading organizations such as Fortune 500 companies, small and medium sized businesses, local, state, and federal governments, and colleges and universities.

Some Facts

More than 80% of man-made U.S. greenhouse gas (GHG) emissions arise from burning fossil fuels such as coal, oil, and natural gas. 50% of U.S. energy consumption is done by the commercial and industrial sector

Type of emissions

Anthropogenic emissions are produced as a result of human activity that unnaturally releases CO2 emissions into the atmosphere. One of the largest sources of anthropogenic CO2 emissions is the combustion of fossil fuels or fossil fuel-based products to produce electricity.

Biogenic emissions result from natural biological processes, such as the decomposition or combustion of vegetative matter. Biogenic emissions are part of a closed carbon loop. Biogenic CO2 emissions are balanced by the natural uptake of CO2 by growing vegetation, resulting in a net zero contribution of CO2 emissions to the atmosphere. Examples of biogenic emission sources include burning vegetation (biomass) to produce electricity or using plant-based biofuels for transport.

Cost of Emissions Reduction

International Energy Agency says that it will take $45 trillion in additional clean technology investments between now and 2050 in order to reduce CO2 emissions to 50 percent. That’s 1.1% of average annual global GDP over the period. These are based on a set of optimistic assumptions of advancement in technology. The factor other wise would be as high as $500 per ton CO2.