DIN Standards Committee Building and Civil Engineering
Energy performance requirements - Operational rating - Framework for assess
Abstract
This document outlines the requirements and methodologies for assessing the operational energy performance of buildings. It aims to standardize the process of calculating and reporting the operational rating of buildings, which reflects the energy efficiency during the actual operating conditions. The document provides a comprehensive framework for operational energy assessment, the assessment's objectives, strategies for collecting data, procedures for analysing and validating data, calculation methods, and reporting requirements. Specifically, this document provides guidance on the types of data required and their respective sources, encompassing building information, occupancy patterns, energy use data, weather data, and indoor environmental quality data. This document elaborates on the measurement and monitoring techniques to be employed, including the quality assurance and maintenance of monitoring equipment. Furthermore, the document outlines various data analysis techniques, including validation, uncertainty analysis, and sensitivity analysis. It defines calculation models, algorithms, energy performance indicators (EnPIs), and correction factors based on occupancy, climate conditions, and levels of service. The standard also describes the structure of the assessment report and key findings and recommendations to be included. This document is applicable to residential, commercial and industrial buildings. For industrial buildings and other buildings containing significant non-building process loads, the operational rating applies to building-related energy services. Industrial process energy, data centre process loads and other non-building energy uses to be reported separately and which will be included in the operational rating only where required by applicable national or regional rules. The annexes provide additional information on benchmark for buildings and calculation tools.
Begin
2026-01-12
WI
00371015
Planned document number
DIN EN 00371015
Project number
00520118
Responsible national committee
Responsible european committee
CEN/TC 371/WG 5 - Operational rating of energy performance of buildings
