Discover IES

The 2023 ASHRAE Lowdown Showdown Competition recently took place in Austin TX at the annual Building Performance Analysis Conference.  The highlight of the conference is the...

BAM’s Design team (BAM Design) have been using IES Virtual Environment (IESVE or VE) for the past 10 years to carry out performance modelling on over fifty UK schools as part of...

In the past three years, IESVE users at UMC have delivered some impressive results for their clients. By delivering a calibrated model for a large medical center to identify 45%...

The Water-Energy Nexus considers the interrelationship between water and energy. E.g. Power plants consume water for cooling systems, and Water plants consume power for treatment...

A Variable Air Volume (VAV) system is one of the most common HVAC systems used in buildings. The basic concept is that the volume of the air entering the thermal zone changes as...

In our latest Python in the VE series article we look at working with ApacheHVAC. What? We create series of functions to help access VE ApacheHVAC component data. We use these...

Global architecture and engineering practice, Foster + Partners is using IES Virtual Environment (IESVE) to deliver the best environmentally friendly design outcomes for its...

Affiliated Engineers, Inc. (AEI) used the IES Virtual Environment (IESVE) to carry out detailed energy modelling for mass timber construction project - Anthony Timberlands...

National Community Renaissance (National CORE) is a Developer/Builder of affordable housing, based in Southern California but with footprint reaching to other regions and States...

Part 4: Identifying problematic HVAC zoning and control issues using manual UMLH tests This article describes the use and application of manual unmet load hour (UMLH) checks and...

Part 3: How Unmet Load Hours are determined in the IES Virtual Environment   As described in Part 1 of this guide, an unmet load hour is any hour of any day of the year when...

Part 2: Spaces, Dates, and Hours subject to Unmet Load Hours tests    As described in Part 1 of this guide, an unmet load hour is any hour when one or more zones in the...

As the industry strives towards net-zero, Australia is making a number of changes to its building regulations and rating systems to help keep it on track. To help guide our IESVE...

For this project KEO Consultants used a combination of methods, focusing on accurate, time optimized, and result-oriented modeling techniques.  The IESVE enabled the KEO...

Crookes Walker Consulting has been using the IES Virtual Environment on the majority of its projects for the past year and is now planning to roll it out across the...

Part 1: Understanding Unmet Load Hours (UMLHs)  In this, Part 1 of our Unmet Load Hours series, we dive into the fundamentals of UMLHs—much more so than the...