The provided line graph illustrates the energy consumption by different fuel sources in the USA from 1980 to the present, with projections until 2030.
Overall, the graph depicts a significant increase in energy consumption across all fuel sources over the years. Petrol and oil have consistently been the primary energy source, while coal and natural gas have also shown substantial growth. Additionally, sustainable energy sources, such as nuclear power, solar/wind, and hydropower, contributed insignificantly to the overall energy consumption.
Petrol and oil have been the dominant energy source in the USA, with consumption increasing from 35 quadrillion units in 1980 to approximately 45 quadrillion units in 2024. This upward trend is projected to continue, reaching a peak of 50 quadrillion units by 2030. In contrast, coal and natural gas consumption fluctuated over the years. Coal surpassed natural gas in 2015, reaching over 25 quadrillion units in 2024, and is projected to further increase to 30 quadrillion units by 2030, while natural gas is expected to remain at 25 quadrillion units since 2015. Furthermore, sustainable energy sources, including nuclear power, solar/wind, and hydropower, accounted for a consumption of just under 5 quadrillion units in 1980. Nuclear power steadily increased to 7 quadrillion units in 2024 and is projected to rise to 10 quadrillion units by 2030.
In addition, the usage of solar/wind and hydropower also demonstrated a slight increase, but both remained below 5 quadrillion units throughout the observed period. Notably, all sustainable energy sources collectively contributed a small proportion to the overall energy consumption. It is evident that while the consumption of traditional energy sources, particularly petrol and oil, coal, and natural gas, has prominently escalated over the years, sustainable energy sources have played a relatively minor role in the energy landscape of the USA.