3D isometric diagram of a building model with color-coded heat maps representing thermal comfort zones in Enscape Impact.
Dinnie Muslihat

Dinnie Muslihat

Published: April 16, 2026  •  1 min read

New white paper: Trusted building performance insights with the IES APACHE Engine and Enscape Impact

Global climate tech company, IES, and Chaos present a new white paper, Designing with Confidence: How the IES APACHE Engine Delivers Trusted Building Performance Insights within Enscape Impact. Discover how the APACHE simulation engine brings technical depth and credibility to Enscape Impact by offering validated, industry-standard methods for modeling building performance.

Designing with confidence

What is Enscape Impact?

Enscape Impact is a building performance add-on that empowers your workflow, making your ideas sustainable from the start. Developed in partnership with IES, it bridges the gap between energy modeling and design visualization, enabling architects to integrate powerful energy analysis into their creative workflow.

Key benefits include better communication during early design stages, fast energy analysis to support early issue detection and data-driven decisions, and improved collaboration between architectural and engineering teams.

What is the IES APACHE engine?

The IES APACHE engine helps designers worldwide effectively decarbonize their buildings. APACHE utilizes a virtual representation of the building and physics-based models of heat transfer processes, alongside historical or future predicted weather data.

The simulation considers the accurate effect of sun-time, solar shading and the associated solar gain entering building spaces. Space conditioning systems definitions also provide a complete understanding of energy usage predictions for both the building and its equipment.

Making reliable analysis accessible with Enscape Impact and IES APACHE

The white paper explores how Enscape Impact communicates with the APACHE engine. You'll learn how it's possible to combine building geometry and location with thermal performance data and fabric information, all while simplifying the process for wider audience.

 

Download the white paper today (click on the cover) ⤵️

Chaos Enscape Impact and IES white paper cover titled, "Designing with Confidence," featuring a digital blue building render.

 

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Dinnie Muslihat
Dinnie Muslihat

Dinnie is part of the Content Team at Chaos and specializes in Enscape, Veras, and Envision. She enjoys sharing informative, insightful, and inspirational pieces for architects and designers to empower their visualization workflows. If you have an excellent idea for a blog post, get in touch via blog-editor@chaos.com.