IESVE 2022

IESVE 2022 offers more flexibility to users and increased functionality in line with industry developments.

IESVE 2022 Feature Pack 4

UK Compliance: Wales Part L (2022)

Main Changes in the 2022 Edition*:

  • New specifications of the Notional building for the 2022 edition, to deliver a 28% reduction in CO2 emissions on average across the new non-domestic building mix relative to Part L 2014.
  • New classification of high and low hot water demand activities to determine the specifications for the Notional building's water heating system.
  • On-site electricity generation by PV in the Notional building. This was present in the 2014 edition, but there have been some changes in how this is calculated.
  • A new set of fuel emission factors and primary energy factors for buildings other than dwellings is provided in this document, including monthly factors for electricity.
  • Revised approach for determining the illuminance level for a zone in the Notional building using minimum and maximum lighting levels for the activity type in the NCM Activity Database.
  • Revised approach for accounting for primary energy due to electricity generated on-site by renewables.
  • Upgrade to the 2016 CIBSE TRY weather data sets.
  • Updated options for HVAC systems in the Actual building and calculation of the corresponding fan energy.
  • Revised approach for calculating the fan energy associated with demand control of ventilation.

* NCM modelling guide (for buildings other than dwellings in Wales, December 2022 edition)

UK Compliance: England and Wales - Approved Document O

  • UPDATED Navigator
    • England Approved Document O: 2021 Overheating specific navigator
  • NEW Navigator
    • Wales Approved Document O: 2022 Overheating specific navigator
  • UPDATE
    • Compliance Navigator categories

IESVE 2022 Feature Pack 3

UK Compliance: Scottish Section 6 (2022) DSM & SBEM - EPC Update

Compliant Scottish Section 6 (2022) software ready for new energy target for new buildings in force 1st Feb 2023.

  • Aggregate emissions improvement to new homes of 32% and new non-domestic buildings of 20%.
  • Requirements to reduce carbon dioxide emission only to new buildings using direct emissions heating systems. 
  • New energy target and exemption from TER for non-direct emission heating systems.
  • NEW from 1st Feburary 2023: EPCs now available and fully introduced.

UK Compliance: Section 3 Scotland - Overheating

  • Section 3 applies to
    • Residential accommodation (single household)
    • Residential accommodation (multi-occupancy)
  • NEW Navigator including
    • Premade data, editable, for:
      • Thermal templates for TM59 room types
      • Suggested thermal templates for room types rooms excluded from the analysis but needed for simulation e.g. cupboards, voids etc.
      • MacroFlo opening types for section 3.28 utilizing scripted profiles
    • Automated overheating analysis
    • Automated PDF overheating report

Loads & Energy: Ground Heat Transfer

As buildings become progressively more efficient, foundation heat loss begins to represent a larger portion of the total building load and better simulation is desirable.

As buildings become progressively more efficient, foundation heat loss begins to represent a larger portion of the total building load and better simulation is desirable.

  • New KIVATM ground coupling co-simulation engine added to Apache that offers:
    • Dynamic finite difference method that offers an approximation to 3D heat flow 
    • Definition of foundation geometry including footings, ground contact walls, basements etc.
    • Definition of insulation scenarios
    • Output to 
      • Conduction gain - ground/exposed floor
      • Conduction gain - external walls
  • Integrated with the Constructions Database: ApCDB
  • Implemented for ApacheSim (ASHRAE 140 Compliance)
  • NEW for Feature Pack 3: implementation of KIVATM for ASHRAE Loads
  • Free On Demand session available to learn more: Access the Session

Miscellaneous Enhancements

  • SunCast - Solar Exposure
    • Model Viewer 2 Model edges option has been revised to Grid edges
    • Grid edges turns SunCast analysis high resolution grid on / off in Model Viewer 2
    • Surface edges remain on
  • Content Store
    • Thermal Template and Constructions report scripts support for IP units
    • Browse the content store HERE

IESVE 2022 Feature Pack 2

UK Compliance: Scottish Section 6 (2022) DSM & SBEM

Compliant Scottish Section 6 (2022) software ready for new energy target for new buildings in force 1st Feb 2023.*

  • Aggregate emissions improvement to new homes of 32% and new non-domestic buildings of 20%.
  • Requirements to reduce carbon dioxide emission only to new buildings using direct emissions heating systems. 
  • New energy target and exemption from TER for non-direct emission heating systems.

On-Demand Webinar available to view HERE

UK Compliance: Part O

NEW Part O Navigator, allowing for a more flexible way of working.

  • Premade data, now editable, for:
    • Thermal templates for TM59 room types
    • Suggested thermal templates for room types rooms excluded from the analysis but needed for simulation e.g. cupboards, voids etc.
    •  MacroFlo opening types for ADO section 2.6 utilizing scripted profiles
  • Automated overheating analysis
  • NEW Automated PDF overheating report
  • Now in Navigator rather than in the Compliance View(s)

On-Demand Webinar available to view HERE

Loads & Energy: Ground Heat Transfer

As buildings become progressively more efficient, foundation heat loss begins to represent a larger portion of the total building load and better simulation is desirable.

  • New KIVATM ground coupling co-simulation engine added to Apache that offers:
    • Dynamic finite difference method that offers an approximation to 3D heat flow 
    • Definition of foundation geometry including footings, ground contact walls, basements etc.
    • Definition of insulation scenarios
    • Output to 
      • Conduction gain - ground/exposed floor
      • Conduction gain - external walls
  • Integrated with the Constructions Database: ApCDB
  • Implemented for ApacheSim (ASHRAE 140 Compliance)
  • ASHRAE Loads Not implemented within Feature Pack 2 - available in Feature Pack 3
  • FREE On Demand session available to learn more: Access the Session
     

Loads and Energy: WDView7

Update to the design weather data to align with 2021 ASHRAE Handbook—Fundamentals (Version 7)

  • 9237 locations now covered - an increase of 1119
  • Accounts for the 12 most recent years of climate data
    • Increase in design conditions for many locations

Sunlight: SunCast - Sunlit Hours

 Two annual simulation enhancements:

  • Threshold now permits decimal entry i.e. 1.5 hours as required by the latest update to the BS EN 17037 Standard  
  • Display range now accepts a date range across the year end (as shown) to account for Southern Hemisphere
     

Daylighting: RadianceIES - BREEAM Daylight Autonomy

Enhancements align with the clarification of BREEAM Hea 01 4b from BRE:

  • Following a UDI (DA) simulation: 
    • Post processing option now carries out average and worst point analysis in a single action 
    • Both results are output to WP Grid tab
  • Following a DA average illuminance calculation:
    • If the average illuminance, across all points in the AOI, in an hour >= lux threshold it gets included in the calculation
    • If sum hours >= hours threshold then the room passes
  • At room level the results legend shows pass/fail

Daylighting: RadianceIES - Vertical Sky Component (VSC)

Enhancements in RadianceIES to align with the updated BR209 2022.

  • BR209 now must include light from skylights (Sky Component (SC) 
  • Enhancements are:
    • Radiance Simulate Advanced now includes a new option for VSC & SC
      • this carries out a VSC analysis on windows and a SC analysis on skylights
    • Radiance Simulate Advanced still includes VSC to maintain VSC only analysis
    • VSC tab has been updated to include SC results in the table, analysis and in the model viewer 
    • User can now edit VSC result colours 

IESVE 2022 Feature Pack 1

UK Compliance: Part L2 2021

Part L2 England Regulations updated to 2021 edition for DSM & SBEM Compliance and EPC

  • Primary energy added as a notional building target alongside CO2 emissions
  • Updated NCM ruleset updates for actual, notional & reference
  • NCM activities enhanced and expanded 
  • New 2016 CIBSE TRY weather files required 

Contact sales@iesve.com to add Part L2 and O 2021 and 2016 CIBSE Weather Data to your IESVE package.

UK Compliance: Part O

New Part O England Regulation: Overheating 

  • Approved document O applies to
    • Dwellings: Part L1
    • Non-domestic buildings: Part L2 (Residential spaces)
  • New Overheating analysis option now available for 
    • UK Dwellings
    • England Part L2 Compliance 
  • New Part O interface provides quick and easy analysis and reporting
  • New 2016 CIBSE DSY weather files required 

Contact sales@iesve.com to add Part L2 and O 2021 and 2016 CIBSE Weather Data to your IESVE package.

UK Compliance: Part F Northern Ireland

Part F2 Northern Ireland Regulations updated to 2021 edition for DSM & SBEM Compliance and EPC

  • 15% reduction in TER over current standards
  • “Did the analysis pass?” accounts for the additional 15%

US Code Compliance

ASHRAE 62.1:2016 option added

  • Ventilation activities updated to latest standard
  • Residential activities moved to 62.2
  • Dwelling unit activity still remains in 62.1    
  • Ventilation rates amended to latest standard

Additional Enhancements

Room-Zone Loads Spreadsheet

  • Over-sizing update:
    • Per Room or Zone over-sizing factors added
    • Spreadsheet can now switch between either Global or local oversizing factor
  • Formatting changes to Labelling and Color-coding
     

IESVE 2022

With more flexibility to users and updates for local compliance methodologies and continued decarbonisation/electrification at the heart of this release, IESVE 2022 brings greater capability and increased functionality that’s in line with industry developments. Take a tour of all the latest features below.

IESVE 2022, a 64-bit version

Location: All

A ground up enhancement to the Virtual Environment, the 64 bit version of the Virtual Environment greatly improves the user experience when modelling particularly for when models get larger or more detailed.

64 bit gives the Virtual Environment access to larger addressable memory space allowing detailed outputs in VistaPro even when there are thousands of zones in the modelled building. Greater support for high resolution results viewing for the largest of models within both VistaPro and detailed Solar visualisation in SunCast.

IESVE 2022, a 64-bit version

Location: MicroFlo

Significant improvements will also be noticeable within the MicroFlo application. The larger addressable memory space means that MicroFlo Grids can be substantially larger allowing either more detail to be investigated or, in the case of external wind studies, greater numbers of surrounding buildings or larger urban environments. In our tests:

  • Grids are approx. 10x larger than before
  • For an average computer this could see an Increase of 3 million cells to 30 million cells 

Energy Code Compliance: New ASHRAE Standard 90.1 2019 Appendix G PRM Navigator

Location: Navigators-Compliance

Bringing the Virtual Environment fully up to date, the ASHRAE 90.1 Appendix G PRM Navigator is updated to version 90.1 2019. Enhancements for the latest version include:

  • New prototype data
  • Proposed building changes:
    • Fully integrated transformer calculations
      • No longer uses Custom Variable in VistaPro
    • Infiltration and lighting calculation updates
    • Updated fan power calculations
    • Users also have the ability to apply custom Building Performance Factors
    • Custom reportage could be created for any State Energy Code.

Energy Code Compliance: New ASHRAE Standard 90.1 2019 Appendix G PRM Navigator

Location: Navigators-Compliance

New 90.1 compliance energy summary reportage in line with new ASHRAE specific reporting requirements

  • Model export:
    • 90.1 section 11 
    • Appendix G compliance form
  • Pushes 90.1 results to pre-formatted Excel sheet
  • Summary of model data: 
    • For Proposed and Baseline building
    • Energy by end use
    • Cost by end use
    • Energy and cost saving calculated

Solar Analysis Visualisation Enhancement

Location: SunCast

The detailed solar analysis visualisation legend can now be filtered to focus in on specific ranges of results. Enhancing the ability to analyse results, these filters help the user summarise results particularly for BRE 209 studies. 

  • Solar analysis threshold checks are now shown on the visualization legend for the Filter display options: ‘above’, ‘below’ and ‘within’
  • New option to show Solar Analysis on Room Groups 

Daylight Area Refinement

Location: RadianceIES

New automated Area of Interest (AOI) options:

  • New AOI offset definitions:
    • "Rear Shrinkage" 
    • "Limit Depth" 
  • Choose either:
    • Shrinkage from all walls (old behavior)
    • Shrink from rear wall
    • Limit depth from all windows
  • Automated AOI options can be applied to multiple rooms making analysis more efficient

Water-Energy Nexus

Location: VistaPro

To provide a fuller picture of both energy and water usage when simulating detailed HVAC Components in ApacheHVAC new functionality has been added to VistaPro to calculate water consumption. Six new water consumption variables have been added.

  • Airside Makeup Water
    • Spray Chamber
    • Steam Humidifier
  • Airside Condensate Water
    • Cooling coils
  • Waterside
    • Cooling tower makeup water accounting for the following losses
      • Evaporation loss
      • Drift loss
      • Blowdown loss

Electrification – HVAC & VRF (New Partner: Mitsubishi)

Location: ApacheHVAC

We are pleased to announce a new manufacturer integration partnership with Mitsubishi. In IESVE 2022 we are now including VRF performance data from Mitsubishi within ApacheHVAC’s VRF Performance Curve Set. The integration brings in a range of Mitsubishi Electric’s Air Source VRF R410a units, which are both high-efficiency Heat Pumps and incorporate heat recovery.

Electrification – Lighting (New Partner: ROBUS)

Location: LightPro, FlucsPro & RadianceIES

A New Lighting Fixtures Database from ROBUS includes 736 Lighting Fixtures, from 12 unique Categories and 100% LED Technology.

  • Available to import database types in LightPro, include categories from Commercial, Industrial, Downlights, Emergency, Circadian, Outdoor, etc.
    • For luminance/illuminance simulation in RadianceIES
    • For LPD (Watts/m2), room illuminances and lumens/Watt calculations in FlucsPro.
  • ROBUS lighting fixtures are provided to over 3,000 stockists in over 40 countries.

IESVE Python API: New Libraries & Updates

Location: VE Scripts

Python API has been significantly enhanced and a number of new libraries have been added:

  • Plotly -  Charting
  • Psychrochart - Psychrometric charting
  • Statsmodels - Statistical computation
  • Scikit learn - Data mining
  • Beautiful soup - HTML / XML parsing
  • Openpyxl - Editing existing Excel Spreadsheets
  • Pygmo - Genetic optimization

Find out more about our new Python Libraries, updates and examples of use by clicking below.

Check out the updates

Got a question?

Our team is happy to answer any questions you have about IESVE 2022.

 

*In accordance with the latest update from the BRE, VE2022.2.0 will allow the creation of Section 6 (2022) EPC and Section 63 calculations. However users will not be able to lodge certificates until the BRE have released the latest updates to the iSBEM software (v6.1) that address Scotland’s correction to revert the EPC/Section 63 calculation to the UK approach to treatment of on-site generation. Release prior to 1st February 2023.