The graph below gives information from a 2008 report about consumption of energy in the USA since 1980 with projections until 2030

The line graph shows how much energy is used in terms of six fuel categories in the USA between 1980 and 2030.

Overall

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,

it is clear that

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the

consumption

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of petrol and oil stands first during the period.

In addition

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, the

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for

consumption

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of coal and natural

gas

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increased,

while

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that of hydropower remained constant. In 1980, the

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for usage of petrol and oil ranked first with 35

quadrillion

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units

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,

while

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that of nuclear, solar or wind and hydropower stood

last

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with less than 5

quadrillion

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units

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.

Although

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the

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for natural

gas

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was higher than coal at the beginning of the period with 20 and 15

quadrillion

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units

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respectively, the

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for

consumption

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of coal overtook that for natural

gas

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in 1990. It is noteworthy that the

figure

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for petrol and oil increased significantly and it is expected to rise after 2020 to reach its peak at 50

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units

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. The

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for natural

gas

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experienced some fluctuations almost before 2020 and after that, it is predicted to remain at its level at 25

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units

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.

Additionally

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, the

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for coal showed a substantial rise before 2020 and it will continue its growth to reach 30

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units

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. It is noteworthy that, the

consumption

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of nuclear and solar or wind energy rose slightly to almost 10

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units

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in the first 20 years, and it is predicted to pursue their upward trend.

Moreover

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, the

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for hydropower remained stable at approximately 4

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units

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, and after 2020, it will not be changed.