EIA, Fossil Fuels, natural gas, Nuclear, oil, renewables
Institute for Energy Research , Bio and Archives--April 16, 2015
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EIA expects the Henry Hub natural gas spot price (in 2013 dollars) to increase from $3.69 per million British thermal units (Btu) in 2015 to $4.88 per million Btu in 2020 and to $7.85 per million Btu in 2040, as increased demand in domestic and international markets leads to the production of increasingly expensive resources. U.S. natural gas prices are determined primarily by the availability and cost of domestic natural gas resources.
In the AEO 2015, the United States transitions from a net importer of 1.2 trillion cubic feet of natural gas in 2014 to a net exporter in 2017. Net exports continue to grow after 2017, reaching 5.6 trillion cubic feet in 2040. LNG exports reach 3.3 trillion cubic feet in 2030 and remain at that level through 2040, accounting for over 50 percent of total U.S. natural gas exports. The growth in U.S. LNG exports is supported by differences between international and domestic natural gas prices. LNG supplied to international markets is primarily priced on the basis of world oil prices, which results in significantly higher prices for global LNG than for domestic natural gas. However, the relationship between the price of international natural gas supplies and world oil prices is assumed to weaken later in the projection period, in part as a result of growth in U.S. LNG export capacity.
Coal remains the largest generator of electricity in AEO 2015, but its share drops from 39 percent in 2014 to 34 percent in 2040 due to onerous regulations that are already in place forcing existing capacity to retire. Some of the slack is taken over by natural gas, which increases its share of total electricity generation from 27 percent in 2014 to 31 percent in 2040. Nuclear generation reduces its share from 19 percent to 16 percent as nuclear reactors retire due to onerous regulations and the inability to compete as merchant plants with natural gas in some U.S. areas. Renewable energy increases its share of total generation from 13 percent in 2014 to 18 percent in 2040. Federal tax credits and state renewable portfolio standards drive the growth of non-hydropower renewable sources until 2018, when the growth of renewable generation moderates due to the expiration of several key federal and state policies, competition from relatively low natural gas prices, and the relatively slow growth of electricity demand. After 2030, renewable generation growth again increases due to increasing natural gas prices.
Wind and solar generation account for nearly two-thirds of the increase in total renewable generation in the AEO2015. Solar photovoltaic (PV) technology is the fastest-growing energy source for renewable generation, at an annual average rate of 6.8 percent. Wind energy accounts for the largest absolute increase in renewable generation, becoming the largest source of renewable generation by 2040, displacing hydroelectric power. PV capacity accounts for nearly all the growth in solar generation, split between the electric power sector and customer-sited generation in the end-use sectors. Geothermal generation grows at an average annual rate of about 5.5 percent, but because geothermal resources are concentrated geographically, growth is limited to the western United States. Biomass generation increases by an average of 3.1 percent per year, led by co-firing at existing coal plants through 2030, after which new dedicated biomass plants account for most of the growth in biomass generation.
In the AEO2015, increasing costs of electric power generation and transmission and distribution result in an 18 percent increase in the average retail price of electricity. Average electricity prices increase from 10.1 cents per kilowatthour in 2013 to 11.8 cents per kilowatthour in 2040 (in 2013 dollars). There has been a fivefold increase in investment in new electricity transmission capacity in the United States since 1997, as well as large increases in spending for distribution capacity. Although investments in new transmission and distribution capacity do not continue at the same rates in AEO2015, spending continues on additional transmission and distribution capacity to connect to new renewable energy sources; improvements in the reliability and resiliency of the grid; enhancements to community aesthetics (underground lines); and smart grid construction.
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