VE

Virtual Environment

Improve the performance of any building

Leading integrated suite for accurate whole building performance simulation

Used by sustainable design experts around the globe, the Virtual Environment (VE) is an in-depth suite of integrated analysis tools for the design and retrofit of buildings. The platform leverages a world-leading simulation engine to allow cross-team collaboration between architects, engineers and contractors, from concept design to operation. Embedding energy and performance analysis into the heart of the design process, and across the entire building lifecycle.

A world-leading simulation engine at your fingertips

For whole-building performance insights you can trust, look no further. Tried and tested over three decades, our unrivalled APACHE simulation engine sits at the heart of the VE to provide accurate analysis across a range of performance metrics and decarbonisation options. Encapsulating the intelligence of building physics to truly understand how your buildings will perform, now and in the future.

VE Applications

Explore the capabilities of the VE's multiple integrated applications and build your own custom quote.

Architecture

Create the building architecture natively or import model geometry as an integral part of the design process. Use this building analysis model to predict performance from a range of metrics including solar shading, daylighting, energy use, and thermal comfort. Optimise the façade design and add furniture to evaluate glare and airflow (CFD) in the 3D model.

  • ModelIT

    The single central 3D data model at the heart of the VE provides geometry and data shared by all applications.

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  • BIM Navigator

    The IES BIM Navigator brings all information and import settings into one step-by-step workflow, facilitating import from a variety of modelling tools.

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  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

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  • Simulex

    Simulex enables you to define a building and its occupants, and simulate how they move around a building day-to-day and evacuate during an emergency.

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  • SunCast

    Calculate the position of the sun in the sky, track solar penetration throughout the building interior and calculate shadows.

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  • FlucsDL

    Offers the daylighting only capabilities of FlucsPro, allowing you to perform point-by-point analysis to determine daylighting levels within a room, or group of rooms.

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  • RadianceIES

    A detailed 3D simulation tool designed to predict daylight, and the appearance of internal spaces prior to construction.

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  • MacroFlo

    Simulate air flow driven by wind pressure and buoyancy forces using a fast multi-zone thermo-fluid solver.

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  • MicroFlo-CFD

    Undertake internal or external air flow and thermal studies using Computational Fluid Dynamics (CFD).

    Learn More

Compliance

Use our internationally validated tools to streamline the regional compliance requirements, automate workflows and generation of reports. IESVE Navigators offer built-in QA and collaboration options when targeting global green-building certification ratings or local code-compliance.

  • VE-SBEM (FREE)

    A front-end interface that provides a 3D graphical route to the non-dwelling UK compliance SBEM engine.

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  • VE-DSM

    Dynamic Simulation software tool for UK compliance approved by DLUHC, Scottish BSD and DFPNI.

    Learn More
  • VE-Navigator for UK Compliance

    Guidance and facilitation in undertaking SBEM and DSM methodology analyses for Part L2 compliance checks and EPC generation

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  • VE-Navigator for UK Compliance: Overheating

    Guidance and facilitation in undertaking overheating analyses for Approved Document O (England and Wales) and Section 3 (Scotland) compliance checks.

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  • UK-Dwellings + JPA-SAP

    A unique 3D graphical interface to JPA SAP 2012 (9.92) that links directly to SketchUp and Revit.

    Learn More
  • BER Assessor

    Integrated 3D tool for Part L and Building Energy Rating calculations in Ireland.

    Learn More
  • VE-Navigator for ASHRAE 90.1

    Time-saving facilitation and automation tools for ASHRAE 90.1 Appendix G PRM (LEED Energy Modeling) and ECB (Energy Cost Budget Method).

    Learn More
  • VE-Navigator for LEED 2009

    Automated LEED rating system credit assessments for LEED 2009 version.

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  • VE-Navigator for LEED v4

    Automated LEED rating system credit assessments for LEED v4 version.

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  • Title 24

    IESVE is the only approved software provider in California to combine holistic design and commercial building compliance in one software package.

    Learn More
  • IECC 2012 Navigator

    A dedicated Navigator for the International Energy Conservation Code (IECC) 2012 performance path (Chapter 4).

    Learn More
  • NECB Navigator

    Navigator to demonstrate compliance with NECB 2011 and 2017 standards.

    Learn More
  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

    Learn More

Light

Assess daylight metrics for LEED & BREEAM such as Spatial Daylight Autonomy (sDA) and Useful Daylight Illuminance (UDI). Evaluate visual comfort by simulating glare metrics such as Daylight Glare Probability (DGP). Perform electric lighting calculations and generate illuminance images with luminaire manufacturers fixtures and furniture layouts. Co-simulate electric lighting annually with sub-hourly daylight harvesting controls.

  • RadianceIES

    A detailed 3D simulation tool designed to predict daylight, and the appearance of internal spaces prior to construction.

    Learn More
  • FlucsDL

    Offers the daylighting only capabilities of FlucsPro, allowing you to perform point-by-point analysis to determine daylighting levels within a room, or group of rooms.

    Learn More
  • FlucsPro

    Sophisticated tool for analysing combined artificial and natural light-levels for daylight harvesting.

    Learn More
  • LightPro

    Allows you to place light fittings anywhere in a room for subsequent analysis using FlucsPro or RadianceIES.

    Learn More
  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

    Learn More
  • VE-Navigator for LEED v4

    Automated LEED rating system credit assessments for LEED v4 version.

    Learn More

HVAC & Loads

Perform calculations for industry standard heating and cooling loads calculations, including options for the ASHRAE Heat Balance method or CIBSE Admittance method. Include minimum ventilation requirements for sizing HVAC equipment and simulating sub-hourly energy performance. Automated loads & sizing reports allow for efficient HVAC design.

  • ApacheHVAC

    Uses a flexible schematic component-based approach that enables you to quickly assemble HVAC plant and control systems.

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  • ASHRAE Loads

    HVAC Loads Sizing Calculations based on the ASHRAE Heat Balance method. ASHRAE Loads can be linked with SunCast for solar shading and ApacheHVAC for System and Plant sizing.

    Learn More
  • CIBSE Loads

    Calculate heat loss and gain calculations based on the CIBSE Guide.

    Learn More
  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

    Learn More
  • ModelIT

    The single central 3D data model at the heart of the VE provides geometry and data shared by all applications.

    Learn More
  • SunCast

    Calculate the position of the sun in the sky, track solar penetration throughout the building interior and calculate shadows.

    Learn More
  • MicroFlo-CFD

    Undertake internal or external air flow and thermal studies using Computational Fluid Dynamics (CFD).

    Learn More

Airflow

Perform minimum ventilation calculations and evaluate outdoor air supply from mechanical HVAC systems or natural ventilation design. Integrate operational windows with annual energy simulation and include window actuator controls. Use Computational Fluid Dynamics (CFD) airflow simulation to evaluate occupant comfort and overheating potential.

  • MacroFlo

    Simulate air flow driven by wind pressure and buoyancy forces using a fast multi-zone thermo-fluid solver.

    Learn More
  • MicroFlo-CFD

    Undertake internal or external air flow and thermal studies using Computational Fluid Dynamics (CFD).

    Learn More
  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

    Learn More
  • ASHRAE Loads

    HVAC Loads Sizing Calculations based on the ASHRAE Heat Balance method. ASHRAE Loads can be linked with SunCast for solar shading and ApacheHVAC for System and Plant sizing.

    Learn More
  • CIBSE Loads

    Calculate heat loss and gain calculations based on the CIBSE Guide.

    Learn More
  • ApacheHVAC

    Uses a flexible schematic component-based approach that enables you to quickly assemble HVAC plant and control systems.

    Learn More

Energy & Carbon

Evaluate any range of passive or active Energy Conservation Measures (ECMs) for rooms, HVAC systems, buildings and sites. Evaluate predictive metrics for site energy, source energy, energy cost and carbon emissions by using the world-renowned APACHE simulation engine.

  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

    Learn More
  • ApacheHVAC

    Uses a flexible schematic component-based approach that enables you to quickly assemble HVAC plant and control systems.

    Learn More
  • MacroFlo

    Simulate air flow driven by wind pressure and buoyancy forces using a fast multi-zone thermo-fluid solver.

    Learn More
  • SunCast

    Calculate the position of the sun in the sky, track solar penetration throughout the building interior and calculate shadows.

    Learn More
  • RadianceIES

    A detailed 3D simulation tool designed to predict daylight, and the appearance of internal spaces prior to construction.

    Learn More
  • ModelIT

    The single central 3D data model at the heart of the VE provides geometry and data shared by all applications.

    Learn More

3D Modelling & BIM Interoperability

Model from scratch directly in the VE or connect with SketchUP, Revit and other BIM packages.

  • ModelIT

    The single central 3D data model at the heart of the VE provides geometry and data shared by all applications.

    Learn More
  • BIM Navigator

    The IES BIM Navigator brings all information and import settings into one step-by-step workflow, facilitating import from a variety of modelling tools.

    Learn More

Solar Shading

Passive solar heating, eliminate solar gains in cooling season, optimize solar shading for daylight and PV panel optimisation.

  • SunCast

    Calculate the position of the sun in the sky, track solar penetration throughout the building interior and calculate shadows.

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Whole-Building Energy Simulation

Daylight-integrated, airflow integrated, solar integrated, HVAC integrated. 8,760 hourly simulation, 1-minute time-steps.

  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

    Learn More

Daylight Simulation and Lighting Design

Daylighting for LEED and BREEAM, electric lighting design, glare prediction, daylight harvesting, daylight autonomy, user-specified visualizations.

  • RadianceIES

    A detailed 3D simulation tool designed to predict daylight, and the appearance of internal spaces prior to construction.

    Learn More
  • FlucsPro

    Sophisticated tool for analysing combined artificial and natural light-levels for daylight harvesting.

    Learn More
  • FlucsDL

    Offers the daylighting only capabilities of FlucsPro, allowing you to perform point-by-point analysis to determine daylighting levels within a room, or group of rooms.

    Learn More
  • LightPro

    Allows you to place light fittings anywhere in a room for subsequent analysis using FlucsPro or RadianceIES.

    Learn More

HVAC Systems Sizing and Optimization

HVAC Sizing for rooms, zones and central HVAC systems. CIBSE and ASHRAE Heat Balance Methods are available, with additional extensive capabilities.

  • ApacheHVAC

    Uses a flexible schematic component-based approach that enables you to quickly assemble HVAC plant and control systems.

    Learn More
  • ASHRAE Loads

    HVAC Loads Sizing Calculations based on the ASHRAE Heat Balance method. ASHRAE Loads can be linked with SunCast for solar shading and ApacheHVAC for System and Plant sizing.

    Learn More
  • CIBSE Loads

    Calculate heat loss and gain calculations based on the CIBSE Guide.

    Learn More

Climate Analysis and Weather

Includes early stage bioclimatic reports and design priorities, solar optimization, site airflow, Masterplanning and psychrometrics.

  • VE Gaia

    Powerful early stage analysis and climatic / natural resource capabilities improving modelling efficiency and accuracy.

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Renewable Energy Design & Optimization

Renewable energy analysis includes annual energy prediction for geometric & parametric photovoltaics panels, HVAC-integrated solar hot-water heating & wind energy.

  • ApacheSim

    Central simulation processor which enables you to assess every aspect of thermal performance as well as share results and input across a wide variety of other VE applications.

    Learn More

LEED

LEED analysis tools that help streamline and assist the LEED certification process.

  • VE-Navigator for LEED v4

    Automated LEED rating system credit assessments for LEED v4 version.

    Learn More
  • VE-Navigator for LEED 2009

    Automated LEED rating system credit assessments for LEED 2009 version.

    Learn More
  • VE-Navigator for ASHRAE 90.1

    Time-saving facilitation and automation tools for ASHRAE 90.1 Appendix G PRM (LEED Energy Modeling) and ECB (Energy Cost Budget Method).

    Learn More
  • One Click LCA

    Undertake Life Cycle Assessment (LCA), Life Cycle Costing (LCC) and more through our partnership with One Click LCA.

    Learn More

UK & Ireland Regulations

Complete 3D compliance solutions for all regions of the UK and Ireland.

  • VE-Navigator for UK Compliance

    Guidance and facilitation in undertaking SBEM and DSM methodology analyses for Part L2 compliance checks and EPC generation

    Learn More
  • VE-DSM

    Dynamic Simulation software tool for UK compliance approved by DLUHC, Scottish BSD and DFPNI.

    Learn More
  • VE-SBEM (FREE)

    A front-end interface that provides a 3D graphical route to the non-dwelling UK compliance SBEM engine.

    Learn More
  • UK-Dwellings + JPA-SAP

    A unique 3D graphical interface to JPA SAP 2012 (9.92) that links directly to SketchUp and Revit.

    Learn More
  • BER Assessor

    Integrated 3D tool for Part L and Building Energy Rating calculations in Ireland.

    Learn More

North American Compliance

Compliance solutions for North America.

  • VE-Navigator for ASHRAE 90.1

    Time-saving facilitation and automation tools for ASHRAE 90.1 Appendix G PRM (LEED Energy Modeling) and ECB (Energy Cost Budget Method).

    Learn More
  • IECC 2012 Navigator

    A dedicated Navigator for the International Energy Conservation Code (IECC) 2012 performance path (Chapter 4).

    Learn More
  • Title 24

    IESVE is the only approved software provider in California to combine holistic design and commercial building compliance in one software package.

    Learn More
  • NECB Navigator

    Navigator to demonstrate compliance with NECB 2011 and 2017 standards.

    Learn More

Global Compliance

Solutions for global compliance assessments.

  • VE-Navigator for RT2012

    A professional solution to convert VE models to the French Réglementation Thermique (RT2012) compliance assessment software.

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Life-Cycle Cost Analysis

Assess capital costs, life-cycle costing and environmental impacts from the 3D model’s construction materials and systems etc.

  • CostPlan

    Assess Capital Costs for Constructions, Systems, and Floor/Ceiling Materials and prepare customised capital cost estimates at any stage of a project.

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  • LifeCycle

    Perform Life Cycle Costing at any stage of the design process and easily incorporate costs for the whole life of the building.

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  • One Click LCA

    Undertake Life Cycle Assessment (LCA), Life Cycle Costing (LCC) and more through our partnership with One Click LCA.

    Learn More

Operational & Calibrated Modelling

Use real data from a building to undertake operational modelling for enhanced retrofit analysis, improvement of handovers and post occupancy operation.

  • iSCAN

    Consolidate a range of time-series data from different BMS systems, utility meters, sensors and portable data loggers in one platform.

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Egress

Elevator simulation, occupant evacuation and movement simulation.

  • Simulex

    Simulex enables you to define a building and its occupants, and simulate how they move around a building day-to-day and evacuate during an emergency.

    Learn More

Manufacturer Tools

We've worked with high-profile manufacturers to incorporate their products into our software.

  • Breathing Buildings

    Breathing Buildings' Natural Ventilation with Heat Recycling (NVHR) is a low energy hybrid ventilation system

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  • Colorcoat Renew SC®

    Colorcoat Renew SC® from Tata Steel is an active solar air heating solution that provides renewable pre-heated air for space heating and ventilation in new construction and retrofit buildings.

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  • Daikin

    The Daikin VRV Systems Plug-in delivers the most advanced modelling capabilities currently available for heat pump and heat recovery VRV systems.

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  • Monodraught Windcatcher

    A Monodraught Windcatcher component designed to help architects and consultants deliver low maintenance, energy efficient designs within the built environment

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  • Monodraught Cool-phase

    Cool-phase is a low energy cooling and ventilation system that creates a thermally comfortable, fresh and healthy indoor environment whilst reducing the energy consumption and running costs of buildings.

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  • Monodraught Hybrid Thermal Mixing (HTM®)

    Monodraught's HTM® system is designed to provide natural ventilation, hybrid ventilation, secure night time cooling and boosted levels of ventilation during summer.

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  • Monodraught HVR Zero

    HVR Zero sets a new benchmark for the future generation of low energy hybrid ventilation systems that integrate heat exchange ventilation strategies.

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BIM Interoperability

IES offers unrivalled interoperability with other CAD design and analysis tools. The smooth and robust two-way information exchange between VE and BIM platforms speeds up the design process and facilitates digital design. 

CASE STUDIES

Some examples of using the VE

Explore how leading innovators like you are harnessing the power of the VE with our interconnected ICL platform

VE for Students & Educators

IES offer a range of discounted software and training packages to educational institutions that use our software in their teaching. Students can also buy a student version of the VE for just £50!

Find out more
RESOURCES

Some useful resources for VE

Live Online Training

Live, lecture style courses will take you through the VE at a basic level. 

Technical Information

Take a technical tour and get FAQ answers in the Knowledge Base. 

Free Getting Started Course

New to the VE and need help learning the basics? Enrol in our course for free. 

On-Demand Training

Discover our range of free on-demand courses from our Upskill with IES series.

Request a Quote

Tell us what you want to achieve and we'll build you a bespoke quotation.