IES is a software solution for Analyzing buildings and Modeling them. Their software is mostly used for architecture but is also used for engineering and also used a lot in the construction industry. There software is helpful and good sustainability for buildings.
Some of the functions of IES is it gives the climate data analysis for wherever the building is being built in the world. It evaluates the impact for the building in this environment and energy usage is calculated and also carbon emissions. Another feature of IES software is the visualization. The software lets you use tools for visualizing energy data and also gives reports to support decision making. One other software feature that IES offers is Building performance. It incorporates a good few of variables like materials the systems used in a building and also IES predicts real world performance.  

• It helps to see the energy usage of a building
• The thermal comfort of a building
• Carbon emissions
• Solar shading

IES is important because it can help heavily in better design decisions and can also help a lot in savings while building a building and also it can give a building a way better environmental impact. 

My IES Tutorial Building

Ground Floor

First Floor

Axonometric View