ISPRS-Annals

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences

ISPRS-Annals

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

2194-9050

Copernicus Publications

Göttingen, Germany

10.5194/isprs-annals-X-4-W6-2025-1-2025

A proposal to update and enhance the CityGML Energy Application Domain Extension

Agugiaro

Giorgio

https://orcid.org/0000-0002-2611-4650

¹ Padsala

Rushikesh

https://orcid.org/0000-0003-2866-8443

3D Geoinformation group, Department of Urbanism, Faculty of Architecture and Built Environment, Delft University of Technology, Delft, The Netherlands

Centre for Geodesy and Geoinformatics, Stuttgart University of Applied Sciences (HFT Stuttgart), Stuttgart, Germany

18 09 2025

X-4/W6-2025 1 8

2025

This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/

This article is available from https://isprs-annals.copernicus.org/articles/X-4-W6-2025/1/2025/isprs-annals-X-4-W6-2025-1-2025.html

The full text article is available as a PDF file from https://isprs-annals.copernicus.org/articles/X-4-W6-2025/1/2025/isprs-annals-X-4-W6-2025-1-2025.pdf

The CityGML Energy Application Domain Extension (ADE), released in 2018, offers an open and standardised data model to facilitate multi-scale Urban Energy Modelling applications. The Energy ADE is based on and extends CityGML 2.0 and has been already used in several national and international projects, mainly focusing on the simulation and computation of the building energy performance based on the integration of semantic 3D city models and other sources of information. The technological innovations (e.g. the release of CityGML 3.0 in 2021) and experiences and feedback collected since its release have contributed to forge several new ideas to improve and update the Energy ADE. Since 2024, work has been going on to harmonise and implement such ideas, towards a so-called Energy ADE 2.0. This paper provides an overview of the development process of the conceptual model so far, and presents a selection of the major changes and improvements that have been made to the original data model of Energy ADE.