We demand many energy slaves.

172 kilowatt-hours/day;
is the average number of how much energy I and my household need. and I need 30kilowatt-hours to go to BCC and come back home.

73,620.5 kilowatt-hours/year;
is the average of how much my household use per year.

Where the energy source comes from?
The energy company that my house uses is Puget Sound Energy.
The energy sources are; hydro power comes from Snowqualmie Falls and Baker River which generate 2,400megawatts and support one third of the about one million customs in 11 counties.
; there are 6 natural gas power plants which create 1,200megawatt.
; coal fired power plant in eastern Montana and one in Washington.

What if the power plants that we rely on running out of fuel?
If I keep the way I live now, I and my household have to have 172 "Energy Slaves" riding bicycles at the back yard to keep the electricity going everyday. This is a shocking fact of how much energy we demand in daily life. Unrealistically speaking, there is definitely not enough space for 202people with bicycles at our back yard. Imagining each family has probably the same or most likely less number( because we have relatively big family and often have visitors that are staying over at our house.) of "Energy Slaves" at each house, I feel guilty for how much energy I use because I know that I can save a lot of energy.
In what way do I indirectly use energy?
Living cross the ocean from my family, I crossing about 10,000kilometers back and forth between Japan and The U.S. every once a year. The amount of carbon dioxide that the air crafts emit is one of huge impact to the greenhouse gas. There are some groups that are building eco-friendly airplanes at Boeing company and also in London. http://www.daytondailynews.com/green/content/shared/news/stories/green_boeing_071107.html
http://web.mit.edu/newsoffice/2006/airplane.html
They are testing now to determine weather it's doable or not. So there will be a possible choice for airplanes that have less impacts to the environment.