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. 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) High income Upper-middle income Lower-middle income Low income

Energy Spenders: China and U.S. China has only recently surpassed America in energy consumption by 4% China consumed billion tons of oil equivalent in 2009, the U.S. consumed 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 U.S. Energy Consumption by Fuel Goldemberg, 2007 ESI & AEO, 2006 World Energy Consumption by Fuel Petroleum Natural Gas Coal Nuclear Hydropower Renewables Petroleum Natural Gas Coal Nuclear Hydropower Renewables 1 Quad = Quadrillion (1  ) British Thermal Unit (BTU) 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 Source: EIA & AEO, Quad = Quadrillion (1  ) British Thermal Unit (BTU) Sources of U.S. Energy Supply Are Expected to Change Very Little in the Coming 20 Years 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.here 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 What do you notice about this picture?

Satellite Collage of the U.S. at Night What do you notice about this picture?

Satellite Collage of Europe and Africa at Night 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. By sealing in warmth, the windows cut heating costs, which can account for up to half a family's energy bill. Where is this house losing the most heat from? What can they do to conserve it?

Energy Management Plan Managing energy is like managing your budget. You should follow three steps: 1. Collect information that tells you what your money (or energy) is being spent on. 2. Evaluate the information and decide where you can reduce costs or replace with a better solution. 3. Make a plan that you can follow to reduce your costs. 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? Direct: Energy to run the machine Hidden: energy spent in shipping the machine to your house or local store. Hidden: energy spent to pump water to the machine Hidden: energy spent to heat the water used to wash the clothes. Hidden: energy spent to create the metal and plastic on the machine Hidden: energy spent to produce, package and ship the laundry soap.