Energy Performance of Buildings. Total Energy Consumption and Definition of Energy Assessments

This document establishes a comprehensive framework for defining and assessing total energy consumption within building environments. It provides precise terminology and methodological guidelines essential for evaluating the energy performance of various structures. The text delineates the scope of energy use, covering all relevant energy carriers and consumption processes occurring within a building's boundary. By standardizing the calculation methods and defining key performance indicators, it ensures consistency and comparability across different energy assessments. The content addresses the principles required for a systematic analysis of how buildings utilize energy throughout their lifecycle. This approach facilitates accurate reporting and supports the development of strategies aimed at improving energy efficiency. It serves as a foundational reference for professionals involved in building design, auditing, and energy management, offering a unified language for discussing energy metrics. The guidelines help align assessment practices with broader objectives related to sustainable building operations. Ultimately, the material enables stakeholders to understand and quantify the total energy footprint of built assets in a structured and reliable manner.