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HPXML: Home Performance Extensible Markup Language



The Home Performance Extensible Markup Language (HPXML) is an open data standard created to support a growing industry by streamlining the exchange of data on residential building and energy performance.

Home Performance eXtensible Markup Language (HPXML) creates a common language for the industry’s transactions, making it easier and less expensive to collect and exchange information among contractors, program administrators, implementers, government, evaluation consultants, and other information trading partners.

Industry Efficiency

Improve industry efficiency by reducing the costs of data collection and exchange between market actors.


Create interoperability between software systems to transfer data across a diverse set of market actors.

High-Quality Research

Standardize terminology and collect higher-quality data as a means of tracking and quantifying work completed in the industry.

Learn about HPXML

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