What is a fundamental principle of LEED related to energy use?

The principle that buildings should prioritize energy efficiency and environmental sustainability is foundational to the LEED (Leadership in Energy and Environmental Design) framework. This principle embodies the core goal of reducing the environmental impact of buildings through optimized energy use, which contributes to lower greenhouse gas emissions and conservation of natural resources.

By focusing on better energy efficiency practices, LEED encourages the adoption of renewable energy sources, innovative building technologies, and sustainable materials. These actions not only help maintain a healthier environment but also lead to lower operational costs and improved comfort for occupants.

In contrast, the other options do not align with LEED's energy-focused goals. The notion of disregarding energy consumption or deeming it secondary undermines the importance of sustainable energy use, which is at the heart of LEED's mission. Furthermore, limiting energy efficiency to only new constructions fails to recognize the significance of retrofitting and improving existing buildings, which is essential for achieving widespread sustainability in the built environment.