This research focuses on improving energy efficiency in existing homes via a whole-house approach. It specifically focuses on the benefits of Austin Energy's HPwES program, which offers a complete home energy analysis and a list of recommendations for efficiency improvements, along with cost estimates. Some conclusions from implementing the whole-house approach include:
The median percentage savings for the largest sample of 6,000 households in the analysis was 32 percent.
The mean savings in the sample was 28 percent.
A conservative estimate of the average savings is between 25 and 30 percent.
Read some tips on how to implement these energy-efficient methods, with Energy Star guidelines, which can result in big savings.