What is the purpose of the Home Energy Rating System (HERS)?

The Home Energy Rating System (HERS) is designed specifically to quantify a home's energy efficiency. This rating system provides a comprehensive evaluation of a home's energy performance, allowing homeowners, buyers, and builders to understand how efficiently energy is being used within a residential property. A HERS score gives a clear benchmark for energy efficiency, where lower scores indicate better energy performance. This quantification can help identify potential improvements, promote energy conservation, and can even influence the resale value of a home.

The other options do not align with the primary role of the HERS. While remodeling guidelines, renovation cost estimates, and assessments of indoor air quality are important aspects of home performance, they fall outside the scope of HERS. The focus of HERS is distinctly on the energy efficiency metrics of the home, providing a standardized assessment that can guide energy-related decisions and improvements.