Hi Victor

It's easy to upload images, and we really need them in order to understand the question. It's impossible to do without the image.

One thing to do in the exam is to highlight the paper. Write, draw, underline, circle, add arrows.

Find the trend and put it first. Don't leave the reader waiting. Put the news first, just as you would see it in a newspaper. So describe the graph, and then make your second sentence an overall sentence.

This is important. Please do this, Victor, no matter what any other teacher or paper recommends. Put the overall sentence second. It will help you and help your reader.

Here the main differences are the importance of coal for Australia and nuclear energy in France. So your overall sentence is something much stronger than the one you have here ("used," "took advantage").

Overall, nuclear energy supplies almost three quarters of France's electricity, while coal and hydroelectric power make up almost 95% of Australia's energy needs

If you put this in your intro, the reader will now reasonably expect you to talk about France first, and then Australia (perhaps in separate paragraphs, although this is not needed unless you want Band 8). 

So now repeat, but on't use the same words -  it's an English test and you only have 150 words to write, so show what you have got. The next sentence will be about France:

In 1980 nuclear power accounted for over 15% of French electricity needs. This was a smaller proportion than coal, at 25 units, and natural gas, which made up more than 25%. However, by 2000, the percentage of electricity from nuclear power had jumped to almost three-quarters, with fossil fuels such as coal and oil contributing just over a quarter, and just 2% from other sources. The biggest drop was for natural gas, which declined in importance from almost 30% in 1980 to a negligible 1% in 2000.

Australia has a similar reliance on one power source. In 1980, exactly half of Australian energy needs were generated by coal.  A further 20% came from hydroelectric power. The amount of electricity from these sources shot up over the next 20 years, and together they generated almost 75% of Australian electricity in 2000. In contrast, the 30% from oil and natural gas in 1980 shrunk to only about 4% in 2000 in Australia.

The amount of electricity generated also increased sharply in both countries. French electricty output doubled, from 90 units in 1980 to 180 units in 2000. Australian electricity production went up by 70% in the same period.

Both countries underwent major changes in power generation capacity, as Australia came to rely increasingly on coal and hydroelectricity and France on nuclear power.

Suggestions

• Find the biggest, the second biggest (and the smallest, but don't write about it unless it's important)
• Group information. For example coal and hydroelectric power accounted for almost 95% of Australia's electricity generation in 2000.
• Work out percentages and fractions for the main figures. For example. hydro-electric power, with 36 units, supplied almost a quarter of Australia's energy needs in 2000.
• Use less than, more than, and compare.
• Don't start any sentences with "While"  -  you have a fragments in your essay.