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Drivers of U.S. Household Energy Consumption, 1980-2009

March 3, 2015 Comments off

Drivers of U.S. Household Energy Consumption, 1980-2009
Source: Energy Information Administration

In 2012, the residential sector accounted for 21% of total primary energy consumption and about 20% of carbon dioxide emissions in the United States (computed from EIA 2013). Because of the impacts of residential sector energy use on the environment and the economy, this study was undertaken to help provide a better understanding of the factors affecting energy consumption in this sector. The analysis is based on the U.S. Energy Information Administration’s (EIA) residential energy consumption surveys (RECS) 1980-2009.

According to RECS, U.S. households used 10.2 quadrillion Btu (quad) of site energy in 2009. During the 1980-2009 time period, household site energy increased by 0.9 quads or 8.9%—an average annual growth of 0.3%. Over the same period, the number of households increased by 33.0% and total floor space by 52.0%. This is equivalent to an average annual growth of 1.1% and 1.8%, respectively. As a result, the aggregate energy intensity per household and per square foot declined by 24.2% and 43.1%, respectively.

The change in aggregate energy intensity was affected by other factors such as structural changes and fluctuation in weather. We applied decomposition techniques to separate the effects of these factors on aggregate energy intensity. More specifically, our decomposition identified four main categories affecting energy use: activity, structural changes, intensity, and weather effects.

Country Analysis Brief: Nigeria

March 2, 2015 Comments off

Country Analysis Brief: Nigeria
Source: Energy Information Administration

Nigeria is the largest oil producer in Africa, holds the largest natural gas reserves on the continent, and is among the world’s top five exporters of liquefied natural gas (LNG). Nigeria became a member of the Organization of the Petroleum Exporting Countries (OPEC) in 1971, more than a decade after oil production began in the oil-rich Bayelsa State in the 1950s.1 Although Nigeria is the leading oil producer in Africa, production suffers from supply disruptions, which have resulted in unplanned outages as high as 500,000 barrels per day (bbl/d).

Annual Coal Report 2013 (released January 2015)

February 10, 2015 Comments off

Annual Coal Report 2013 (PDF)
Source: Energy Information Administration

This report presents annual data on U.S. coal production, number of mines, productive capacity, recoverable reserves, employment, productivity, consumption, stocks, and prices.

Country Analysis Brief: Iraq

February 3, 2015 Comments off

Country Analysis Brief: Iraq
Source: Energy Information Administration

Iraq was the second-largest crude oil producer in the Organization of the Petroleum Exporting Countries (OPEC) in 2014, and it holds the world’s fifth largest proved crude oil reserves after Venezuela, Saudi Arabia, Canada, and Iran. Most of Iraq’s major known fields are producing or in development, though much of its known hydrocarbon resources have not been fully exploited. All of Iraq’s known oil fields are onshore and the largest fields in the south have relatively low extraction costs owing to uncomplicated geology, multiple supergiant fields, fields that are typically located in relatively unpopulated areas with flat terrain, and the close proximity to coastal ports

OSTI.gov Newsletter — January-February 2015

February 3, 2015 Comments off

OSTI.gov Newsletter — January-February 2015
Source: U.S. Department of Energy, Office of Scientific and Technical Information

Issue Contents

  • DOE PAGESBeta Features Guidance for
    DOE-Funded Authors
  • Re-Presenting the DOE Office of Scientific and Technical Information
  • OSTI’s Catalogue of Collections
  • What is STI?
  • Search Tip: Explore DOE Scientific Data
  • Most Viewed Documents from All OSTI Search Tools by Subject Category
  • DOE Science Showcase: Protein Folding
  • The Latest from OSTIblog

Annual Coal Report 2013

January 28, 2015 Comments off

Annual Coal Report 2013
Source: Energy Information Administration

Highlights for 2013:

  • For the first time in two decades, U.S. coal production fell below one billion short tons to 984.8 million short tons in 2013 from 1,016.5 million short tons in 2012 (3.1% lower than 2012).
  • Production in the Western Region, which represented about 53.8% of total U.S. coal production in 2013, totaled 530.2 million short tons (2.4% lower than 2012).
  • U.S. coal mine productive capacity decreased 2.5% to 1,252.0 million short tons in 2013, a decrease of 32.4 million short tons compared to 2012.
  • Average number of employees at U.S. coal mines decreased 10.5% to 80,396 employees, a decrease of 9,442 employees compared to 2012.
  • U.S. coal consumption increased 4.0% to 924.8 million short tons, an increase of 35.6 million short tons. The electric power sector consumed about 92.8% of the total U.S. coal consumption in 2013.
  • Average sales price of coal from U.S. mines decreased from $39.95 per short ton in 2012 to $37.24 per short ton in 2013 (6.8% lower than 2012).
  • Total U.S. coal stocks decreased 16.1% to 200.4 million short tons, a decrease of 38.4 million short tons. Electric power sector coal stocks decreased from 185.1 million short tons at the end of 2012 to 148.0 million short tons at the end of 2013 (20.1% lower than 2012).

Country Analysis Brief: Kazakhstan

January 20, 2015 Comments off

Country Analysis Brief: Kazakhstan
Source: Energy Information Administration

Kazakhstan is a major oil producer. The country’s estimated total petroleum and other liquids production was 1.70 million barrels per day (bbl/d) in 2014. The key to its continued growth in liquids production from this level will be the development of its giant Tengiz, Karachaganak, and Kashagan fields. Development of additional export capacity will also be necessary for production growth.

Although Kazakhstan became an oil producer in 1911, its production did not increase to a meaningful level until the 1960s and 1970s, when production plateaued at nearly 500,000 bbl/d, a pre-Soviet independence record production level. Since the mid-1990s and with the help of major international oil companies, Kazakhstan’s production first exceeded 1 million bbl/d in 2003.

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