Case Study: Improving Arizona Home Performance

By adopting HPXML, APS was able to manage its home performance program more efficiently and transparently. More efficient processes and better contractor and customer engagement led to an all-around more successful program for the stakeholders involved.

The net impact of implementing the HPXML compliant software and market-based energy assessment software options for contractors has been a more efficient and cost-effective program that is better able to serve its 4,000 customers.

Since launching the Arizona Home Performance with ENERGY STAR (HPwES) program in March 2010, electric utility Arizona Public Service (APS) and Arizona’s HPwES Sponsor, FSL Home Energy Solutions (FSL) have focused on continuous improvements designed to elevate customer and contractor experience while boosting program cost-effectiveness.

As the program quickly grew from serving more than 2,300 homes in its second year to more than 4,000 in its sixth year, three areas for improvement emerged:

  • Contractor satisfaction
  • Installation quality
  • Program cost effectiveness

APS and FSL implemented a number of strategies to address these issues, including the adoption of two national industry standards, HPXML and the Standard Work Specifications (SWS). These standards allowed APS to leverage industry expertise and incorporate better consistency and transparency into the program process.

You may read more about APS' implementation of HPXML and its impact on its program here.