Energy simulation tools and CAD interoperability: A critical review

Nowadays a number of energy simulation tools are available for analyzing the probable energy implications and related impacts of the proposed building project. These tools work on the information about the various aspects of proposed building - either input by the user or imported from CAD tools. Extraction of building data directly from the 2D CAD tools is still in preliminary stages and is part of selected tools. This paper attempts to identify such tools and critically analyze them on the method and the extent up to which it is supported.