The graph illustrates the consumption of six categories of fuel in the USA in the year 1980 to 2008 and their prediction until 2030.
To begin with, it is noticeable that all kinds of energy had an upward trend except hydropower, which was a roughly steady pattern with an amount of 3 quadrillions unite (qu) between the year 1980 and 2030. With respect to the given graph, the highest usage was petrol and oil which was beginning from 35 quadrillions unite in the year 1980 with a dramatic increasing trend while the projections demonstrate it will be raised more than 45 (qu) in 2030. The secondly ranked was related to coal which was 16 (qu) in 1980. It is worth mentioning that it had a similar sharp climbing movement likes fossil fuel such as petrol and oil while in the end it will be reached 30 (qu) in 2030.
On the other hand, natural gas, nuclear, and solar/wind energy had a gradual rise. It is noteworthy that both nuclear and solar/wind sources had the same rate of consumption in 1980 that was almost 4 (qu), whereas the predictions show that people prefer to utilize nuclear more than solar/wind energy in the future. However, natural gas had a similar movement but its utilization was equal to 20 (qu) in the year 1980 which will be arisen to 24 (qu) according to projections.
To sum up, it can be clearly seen that the fossil fuel practically petrol and oil was the most popular resource of energy in the USA and it will be the most common source till 2030.