Band 9: The pie charts below describe the electric energy production, a major source of energy in the US. Write a short report for a university lecturer describing the information in the charts.

The provided pie charts illustrate the distribution of electric energy production in the United States for the years 1970 and 1980.

Overall, coal emerged as the dominant source of electricity during both years, whereas nuclear energy represented the least significant contribution in 1970, with a notable increase by 1980.

In 1970, coal was responsible for 47% of the total electricity production, reflecting a gradual increase to 51% by 1980. In stark contrast, nuclear energy, which contributed a mere 1% in 1970, experienced a substantial rise to 12% within the same period. This marked a significant shift in energy strategy, although it remained the least utilized source throughout the decade.

Examining the other energy sources, natural gas accounted for 24% of electricity generation in 1970 but saw a decline to 15% by 1980. Oil’s contribution remained relatively stable, decreasing slightly from 12% to 11%. Additionally, hydroelectric energy production decreased from 16% in 1970 to 12% in 1980, showcasing a general trend of reduced reliance on renewable sources during this timeframe.