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An important part of an IES energy home audit assesment is a review of the past twelve months energy costs for your home.
IES reviews the costs to heat, cool and provide electrical service to your home during the past twelve months and compare those to average annual costs of a similar home in your area. This review helps to target specific areas that may need to be addressed and focused upon during the energy audit.
The energy cost review also provides a baseline of energy costs that will be used as a measurement tool against future costs once improvements have been made to your home. In other words, we want to back up our energy saving guarantee with hard data. | 
