The graph shows energy consumption in the US from 1980 to 2008, and projected
consumption to 2030.
Overall, the US will continue to rely on fossil fuels, with sustainable and nuclear
energy sources remaining relatively insignificant.
Petrol and oil were the dominant fuel sources throughout this period, with 35 quadrillion
units (q) used in 1980, rising to more or less 42q in 2008. Despite some initial
fluctuation, from 1995 there was a steady increase. This is expected to continue,
reaching 47q in 2030.
Consumption of energy derived from natural gas and coal is similar over the period.
From 20q and 15q respectively in 1980, gas showed an initial fall and coal a gradual
increase, with the two fuels equal between 1985 and 1990. Consumption has fluctuated
since 1990 but both provided just under 25q by 2008. Coal is predicted to increase
steadily to 31q in 2030, whereas after 2014, gas will remain stable at around 25q.
In 1980, energy from nuclear, hydro- and solar/wind power was equal at only 4q.
Nuclear has risen by 3q, and solar/wind by 2q. After slight increases, hydropower has
fallen back to the 1980 figure. It is expected to maintain this level until 2030, while
the others should rise slightly after 2025.