Given pie charts compare output electricity based on variety sources in the United States between 1970 and 1984.
A glance of the graphs, it is clear that the majority of electricity production depended on exhaustible sources in both years, coal, natural gas and oil portioned 46%, 24.3% and 12.1% respectively in 1970, comprised more than 80% of the whole. Until 1984, although the need for power generated by natural gas and oil drop to half of original demanding, however, the usage of coal rose almost 10 percent. The most remarkable change was the use of nuclear, from 1.4% to made up ten times larger than in 1970. Interestingly, the adoption of hydroelectricity for power generation did not present its renewable value, the hydroelectric power of entire electricity production remained more or less the same in both years, at about 15%.
In conclusion, it is a well-known fact that resources such as coal, oil and natural gas are not always available. Therefore, it is predicted, the employment of renewable energy will become more urgent in the coming years.
A glance of the graphs, it is clear that the majority of electricity production depended on exhaustible sources in both years, coal, natural gas and oil portioned 46%, 24.3% and 12.1% respectively in 1970, comprised more than 80% of the whole. Until 1984, although the need for power generated by natural gas and oil drop to half of original demanding, however, the usage of coal rose almost 10 percent. The most remarkable change was the use of nuclear, from 1.4% to made up ten times larger than in 1970. Interestingly, the adoption of hydroelectricity for power generation did not present its renewable value, the hydroelectric power of entire electricity production remained more or less the same in both years, at about 15%.
In conclusion, it is a well-known fact that resources such as coal, oil and natural gas are not always available. Therefore, it is predicted, the employment of renewable energy will become more urgent in the coming years.
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