Compared to homes built before 2004, ENERGY STAR®-qualified homes are rated how much more energy efficient?

ENERGY STAR®-qualified homes are designed to be significantly more energy efficient than traditional homes built before the implementation of stringent energy efficiency standards in 2004. The ENERGY STAR program establishes guidelines and rating systems that require homes to be at least 15% more energy efficient than those built to the minimum codes in place prior to 2004.

This rating reflects the increased use of better insulation, more efficient HVAC systems, and energy-efficient appliances, among other improvements. The focus on energy efficiency not only reduces utility bills for homeowners but also minimizes the environmental impact by lowering greenhouse gas emissions. Therefore, the figure of 15% accurately represents the benchmark for energy efficiency that homeowners can expect from an ENERGY STAR®-qualified home compared to older homes.