According to national geographic and and the Energy Information Administration our houses is one of the biggest culprits. Many houses use primarily electricity in the house as our source of energy however we lost 89.3 million BTU (british thermal units) per house in 2006 this is partly because electricity is transpoted via transmission lines and so it is estimated that for every kilowatt hour used we loose 2.2 kilo watt hours as the energy is generated and transmitted.
As a result of this even the smallest changes we make in the house can make a large impact for example if you cut back your energy usage by 10 kilowatt hours a week you would save 32 kilowatt hours. This would add up to 1664 kilowatt hours a year !
In terms of CO2 emmissions if we all converted half of our lightbulbs to compact flourecents we would cut our lighting CO2 emmissions by 36% or 42.4 million tons a year !
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