The graph below gives information from a 2008 report about consumption of energy in the USA since 1980 with projections until 2030. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The given line graph illustrates the uses of power in the USA between 1980 and 2030, including projections, as a report was issued in 2008.

Overall

Linking Words

, it can be seen that petroleum and oil are the main contributors, accounting for more than half of fuel consumption annually.

Moreover

Linking Words

, there is a continuous tendency to increase their consumption

over

Change preposition

of

show examples

these fuels until 2030. As for other items, coal and natural gas were unstable during the first periods, and,

furthermore

Linking Words

, scientists predict that it is going to continue till 2015, making up

of

Change preposition

apply

show examples

25 quadrillion.

Conversely

Linking Words

, after that year coal will presumably prevail over natural fuel, and the difference is going to widen to 6 quadrillion by 2030.

On the other hand

Linking Words

, 3 other elements, namely nuclear, solar and wind, and hydropower, were and will be the outsiders of the US economy. They accounted for less than 5 quadrillion each.

Firstly

Linking Words

,

however

Linking Words

, by 2030, the first two items are going to climb by about 50%,

while

Linking Words

the latter will remain the same.

To sum up

Linking Words

, I find it necessary to emphasize the fact that the USA consumes traditional fuels mostly, and it is not foreseeing a change in its power policy.