Energy Management
Comparing Energy Use Developing countries are those that are poor in terms of their economy and whose citizens have a low standard of living. The image below shows the income levels for countries in the world. High income Upper-middle income Lower-middle income Low income Answer the following question in your science journal: • How do you think energy use is different between people in low-income countries and those in high-income countries? (give at least 3 differences)
Energy Spenders: China and U.S. China has only recently surpassed America in energy consumption by 4% China consumed 2.252 billion tons of oil equivalent in 2009, the U.S. consumed 2.170 billion tons. Prior to 2009, the U.S. has been the largest energy consumer since the 1900s. Source for information: Swartz, S. and Oster, S. (2010) China tops U.S. in energy use. The Wall Street Journal. July 18, 2010.
2004 U.S. & World Energy Consumption World Energy U.S. Energy Consumption Consumption by Fuel by Fuel Natural Natural Gas Gas Petroleum Petroleum Coal Coal Nuclear 1 Quad = Quadrillion (1 10 15 ) British Thermal Unit (BTU) Goldemberg, 2007 ESI & AEO, 2006 Slide from Dr. Michael Webber, Hot Science-Cool Talks powerpoint presentation #52: Our Energy Future
Analysts Expect Consumption Will Increase Steadily Over the Next 20 Years 160 < Actual Projected > 140 Consumption (Quads) 120 100 80 60 40 20 0 1980 1983 1986 1989 1992 1995 1998 2001 2004 2007 2010 2013 2016 2019 2022 2025 2028 Sources of U.S. Energy Supply Are Expected to Change Very Little in the Coming 20 Years 1 Quad = Quadrillion (1 10 15 ) British Thermal Unit (BTU) Source: EIA & AEO, 2006 Slide from Dr. Michael Webber, Hot Science-Cool Talks powerpoint presentation #52: Our Energy Future
Energy Consumption vs. Population In 2007, the U.S. was the leader in energy consumption. In 2007, the U.S. had 5% of the World’s Population, but consumes 30% of the energy resources. • Click here to compare the U.S. to different countries. Data from 2007
Energy in Industrialized Nations vs. Developing Nations A citizen of an advanced industrialized nation consumes in 6 months the energy that has to last a citizen of a developing country his entire life. - Maurice Strong, Senior Advisor to the United Nations and World Bank
Satellite Collage of Earth at Night http://geology.com/articles/satellite-photo-earth-at-night.shtml What do you notice about this picture?
Satellite Collage of the U.S. at Night http://geology.com/articles/satellite-photo-earth-at-night.shtml What do you notice about this picture?
Satellite Collage of Europe and Africa at Night http://geology.com/articles/satellite-photo-earth-at-night.shtml How does Africa compare with Europe and the U.S.?
Conserving Energy Starts at Home Special photography records thermal radiation, and offers clues to where energy is being wasted in this older house in Connecticut. Red and yellow patches indicate escaping heat, while new double-pane windows appear cool blue. Where is this house losing By sealing in warmth, the the most heat from? windows cut heating costs, which can account for up to What can they do to half a family's energy bill. conserve it? http://ngm.nationalgeographic.com/2009/03/energy-conservation/turner-photography
Energy Management Plan Managing energy is like managing your budget. You should follow three steps: Collect information that tells you what your money (or 1. energy) is being spent on. Evaluate the information and decide where you can reduce 2. costs or replace with a better solution. Make a plan that you can follow to reduce your costs. 3. Think back to the money you have spent this week. Include all costs! List them in Part 1 of the Money Management page.
Hidden Costs in Energy Consumption Can you think of ALL the ways energy was used to allow you to wash your clothes in a washing machine? Hidden: energy Hidden: energy spent in shipping spent to pump the machine to your water to the house or local store. machine Direct: Hidden: energy Energy to spent to heat the run the water used to wash machine the clothes. Hidden: energy Hidden: energy spent to produce, spent to create the package and ship metal and plastic on the laundry soap. the machine
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