Home Performance with ENERGY STAR’s new HPXML Implementation Guide helps energy efficiency program administrators and software developers overcome fragmented data exchange by integrating HPXML (home performance extensible markup language) into their operations and products. HPXML is a set of common definitions for the attributes of home systems based on Building Performance Institute data standards and the computing language that facilitates the quick and easy transfer of home-related data between different markets.

STEP was developed with a mission to "create a model community energy transformation program that serves as a roadmap for other small towns across the U.S." This final technical report summarizes the program's comprehensive energy evaluations for homes.