primary energy, definition of

Energy Efficiency is when you use less energy to accomplish the same task, for example heating your home or washing clothes. Using less energy by being more efficient means less air pollution and lower costs.

To save energy in your home, you can use weather stripping, solar water heating, passive solar or compact fluorescent light bulbs. Also when shopping for household appliances, look for the Energy Star to find appliances that use less energy and lower your electricity costs.

You can also reduce your heating and cooling costs by installing better insulation.

• 2010 - Chart of The Year
  A picture says a thousand words. In this post you will find only charts and graphs conveying important points from the world of energy 2010.
• The financial return on energy invested
  Global GDP data from the USDA. Primary energy data and energy prices from the BP statistical reveiw of world energy 2009.

Related Tags: environment