[IELTS TASK 1] A report about consumption of energy in the USA

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

The line graph compares how Americans use six different energies from 1980 to 2030, a period of 50 year. This report was taken in 2008 and it is measured in quadrillion units.

It is noticeable that petrol and oil are the popular energies which beat the largest amount of consuming in the whole period, whereas nuclear and solar figures have a similar pattern. The following over period four energy resources incline slowly, while nature gas and hydropower remain reasonably stable.

In 1980, nuclear, solar and hydropower energies stood at the same figures which held at just under 5 quadrillion units, although petrol and oil energies reached the largest number of consuming in 35 quadrillion units. Moreover, petrol oil and natural gas followed the same graphic which was a gradual increase following 15 years at just under 40 and 25 quadrillion units. In any case, the hydropower energy recorded a steady decline at approximately 4 quadrillion units in 2000.

A closer look at the data reveals that petrol oil, coal, nuclear and solar powers have significantly risen since 2005 to 2013. Those figures will rise slightly onward, exceeding the consuming of hydropower and natural gas energies will level off between 2015 and 2030.

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(what do you mean by the following period? You have not mentioned any period previously so using following is somehow irrelevant)

Well I can see from your writings that you described the trend in groups of years. That's fine. But why don't you try describing in groups of trend. I mean, you can clearly see that it is divided into 3 different parts in the graph, petrol and oil, natural gas and coal, the 3 others. I think each group has its own trend so that it is easier to describe? What do you think?

I mean in the end of period.
I mentioned based on the year because


History (1980-2008) and Projection (2009-2030), but it is fine if i write as per the figure of pattern.

The line graph compares energy consumption in the USA over a 50-year period.


the most popular sources of energy



What do you mean by "the following period" in this graph?


which were around one-seventh of the corresponding figure for petrol and oil consumption



, both of which experienced a gradual increase throughout the next 15 years.


These words are not appropriate.


I don't think this phrase add any value to your sentence.

I agree with Salmon, you should write the trend of the consumption instead.

The line graph compares(I don't really agree if you use the verb 'compares'. This chart uses the appropriate language of change and compares the information)shows how Americans use six different energies during a 50-year period (a comma) from 1980 to 2030, (no comma here)This report was taken in 2008 and it is measured in quadrillion units.


If you put this as the overview, it will take time to read. Therefore, I suggest you to rewrite.
Have a look this one:It is clear that the consumption of energy has increased steadily. In any case, after slight increase, hydropower is predicted to decrease to the starting figure.