Updating electricity in historical homes
The Vienna Climate Change Talks 2007 Report, under the auspices of the United Nations Framework Convention on Climate Change (UNFCCC), clearly shows "that energy efficiency can achieve real emission reductions at low cost." Modern appliances, such as, freezers, ovens, stoves, dishwashers, and clothes washers and dryers, use significantly less energy than older appliances.
For example, insulating a home allows a building to use less heating and cooling energy to achieve and maintain a comfortable temperature.
Reducing energy use is also seen as a solution to the problem of reducing greenhouse gas emissions.
According to the International Energy Agency, improved energy efficiency in buildings, industrial processes and transportation could reduce the world's energy needs in 2050 by one third, and help control global emissions of greenhouse gases.
and are high priorities in the sustainable energy hierarchy.
In many countries energy efficiency is also seen to have a national security benefit because it can be used to reduce the level of energy imports from foreign countries and may slow down the rate at which domestic energy resources are depleted.
Current energy efficient refrigerators, for example, use 40 percent less energy than conventional models did in 2001.