What is one of the reasons for adopting the ASHRAE 90.1 standard in projects?

Adopting the ASHRAE 90.1 standard in projects is primarily important because it specifies minimum energy performance requirements for buildings. This standard serves as a benchmark for energy efficiency in design and construction, ensuring that buildings consume less energy, which contributes to reduced operating costs and lower environmental impact. By adhering to these performance criteria, projects can optimize energy usage effectively, aligning with sustainability goals and often resulting in easier achievements of LEED credits related to energy efficiency.

While the other options touch on important aspects of building design, they do not directly pertain to the primary purpose of ASHRAE 90.1, which is strictly focused on energy performance. The guidelines for renewable energy, indoor air quality, and sustainable materials are addressed through different standards and credits within the LEED framework, but they are not the core focus of ASHRAE 90.1.