The line graph illustrates trends in U.S. energy consumption across six different fuel categories from 1980, with projections extending to 2030. Overall, the data indicates a consistent upward trend in total energy usage, with petrol and oil maintaining their position as the primary energy source throughout the entire period.
Petrol and oil consumption began at 35 quadrillion units in 1980, dipped slightly, and is projected to reach 48 quadrillion units by 2030. Coal consumption also experienced a notable rise, starting at 16 quadrillion units and climbing steadily to a projected 31 quadrillion units. Natural gas followed a more volatile path, fluctuating between 18 and 23 quadrillion units before stabilising at 25 quadrillion units from 2015 onwards.
In contrast, the remaining energy sources account for significantly smaller proportions of total consumption. Nuclear energy usage grew from 4 quadrillion units in 1980 to a projected 8 quadrillion units by 2030. Meanwhile, solar and wind energy consumption remained relatively low, rising from 3 to 6 quadrillion units. Hydropower consumption remained the most stagnant, hovering consistently between 3 and 4 quadrillion units throughout the entire fifty-year period.