The line graph illustrates the consumption of six different energy sources in the USA from 1980, with projections extending to 2030. Overall, petrol and oil consistently dominated energy usage throughout the period and are forecast to maintain their leading position. While coal consumption is projected to rise significantly, eventually surpassing natural gas, the other energy sources – nuclear, solar/wind, and hydropower – are expected to remain marginal contributors to the overall energy mix. In 1980, petrol and oil accounted for approximately 35 quadrillion units, dipping slightly before steadily climbing to just under 40 units by 2010. This upward trend is anticipated to continue, reaching nearly 50 quadrillion units by 2030, reflecting its enduring dominance. Natural gas began at around 20 quadrillion units in 1980, experienced notable fluctuations, peaking near 23 units in 2000, and is projected to stabilize around this level until 2030. Conversely, coal started lower than natural gas, at about 16 quadrillion units in 1980. Its consumption steadily increased, intermittently overtaking natural gas in the early 2000s, and is forecast to ascend markedly to over 30 quadrillion units by 2030. Regarding the less significant sources, nuclear power saw a gradual increase from roughly 4 to 7 quadrillion units over the entire period. Hydropower fluctuated between 3 and 5 units, with minimal change expected. Solar/wind, despite starting from the lowest point (under 5 units), shows a gradual but consistent rise, projected to slightly overtake hydropower by 2030.
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