Expenditures for delivered energy in the U.S. in 2015 totaled $1.13 trillion, a 20% decrease in real terms from 2014, according to recently released data from the Energy Information Administration’s State Energy Data System.
Adjusted for inflation, total energy expenditures in 2015 were the lowest since 2004. Total energy expenditures, expressed as a percent of U.S. gross domestic product (GDP), were 6.2% in 2015, the lowest since 2002.
Roughly 45% of total U.S. energy expenditures in 2015 were in the transportation sector and mainly included fuels used for vehicles, rail, aircraft, and waterborne vehicles such as ships and barges.
The 28% decline in transportation sector expenditures between 2014 and 2015 was the result of lower fuel prices, as energy use in the sector increased by roughly 1%, according to EIA.
Declines in petroleum product prices accounted for almost all of the overall price decline, as petroleum-based fuels accounted for 97% of total consumption in the transportation sector in 2015.
Petroleum prices were at their lowest level since 2009, while natural gas prices were at their lowest mark since 2002.
In total, the U.S. spent roughly $507 billion on transportation sector energy in 2015, Kallanish Energy finds.
California had the highest total energy expenditures of any state and accounted for 11% of total U.S. energy expenditures in 2015.
The West Coast state’s transportation energy expenditures alone accounted for nearly 6% of total U.S. energy expenditures, and were larger than the total energy expenditures for every other state except Texas.
Texas led all states in total petroleum energy expenditures with $75 billion in 2015. California spent the most on natural gas ($10.7 billion), Pennsylvania the most on coal ($800 million), and Georgia the most on wood and waste biomass ($600 million).