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Overview of Global Energy Sources and Their Impact on Consumption

This document explores various energy sources, including fossil fuels, nuclear power, and renewables, and their historical and present consumption trends. It highlights the 20th-century growth in fossil fuel usage, the rise of hydroelectric power, and the increasing significance of renewable energy sources, including solar, wind, and geothermal. The data illustrates the shift in energy sources post-oil crises and emphasizes the urgency of transitioning to sustainable energy solutions for environmental preservation. Recent investments in renewables reflect a growing commitment to reducing carbon footprints.

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Overview of Global Energy Sources and Their Impact on Consumption

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  1. Caleb Strode A.P.E.S. January 2010 Matching Sources to Uses

  2. Energy Sources • Fossil Fuels • Oil • Coal • Gas • Hydroelectric • Nuclear Power • Renewable Energy • Wood • Solar • Wind • Geothermal

  3. Fossil Fuel Consumption • The use of fossil fuels increased in the 20th century. • Between 1986 and 2006, the worldwide annual growth rate was 2%. • Coal fueled the indust. rev. in the 18th and 19th centuries. • After the oil shocks of ‘73 and ‘79, when the price of oil increased from $5 to $45 per barrel, there was a shift away from oil.

  4. Hydroelectric Uses • The energy harnessed from the gravitational pull of falling water. • Worldwide consumption reached 816 GW • Worldwide annual growth rate is 8%. • In the western world, the construction of large hydro plants stagnated due to environmental concerns. • Micro hydro is a new trend that has negligible environmental impacts and opens up more locations for power generation

  5. Nuclear Powahhhh!!!! • Nuclear Power accounts for 6.3% of the world’s total primary energy supply. • There were 439 operational nuclear reactors worldwide, as of November 2007. • No US reactors currently exist, (primarily because of Chernobyl), but some are being developed. • If coal, gas or oil electric generators are replaced by nuclear power plants, they must be considered CO2 negative when a pound of recycled military plutonium or uranium can replace 3,000,000 pounds of coal energy.

  6. Renewable Energy • In 2004, renewable energy supplied around 7% of the world’s energy consumption. • The renewables sector has been growing significantly since the last years of the 20th century. • In 2005 the total new investment was estimated to have been 38 billion US dollars. • Germany and China led with investments of about $7 billion dollars each.

  7. Sources • Adkisson, C.W. (2010, January 26). Executive summaru. Retrieved from http://pubs.usgs.gov/dds/dds060/ESpt4.html#Table • Pilloton, E. (2007, April 10). Want to stop global warming? stop coal!. Retrieved from http://www.inhabitat.com/2007/10/04/want-to- stop-global-warming-stop-coal/ • Renewable resources in the u.s. electricity supply. (2008, January 01). Retrieved from http://www.eia.doe.gov/cneaf/electricity/pub_summaries/renew

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