Energy Modelling & Analysis

Buildings are complex and comprise various interactive elements and systems, such that the human mind may not be able to integrate all the information to develop design solutions. This is where a Building Energy Modelling and Simulation platform comes into place, to be able to collect and identify all the building information that can be provided and consequently give an insight to engineers and architects with respect to the areas and elements within a building that need consideration to optimize building performance.


Building Energy Modelling is a software tool which is used by engineers and architects to build 3 dimensional virtual model of their ideas and simulate building energy performance.The focus of an energy modelling and simulation activity is energy consumption and life cycle cost of various critical building systems.   


Once the Energy model is developed, it can be re-adjusted and re-calibrated by incorporating various energy conservation measures to arrive at the most optimum design from energy perspective. The simulation tool can give an insight on how each alteration to the building’s systems or envelope can affect the overall building performance: for example: the engineer can determine through the software if adding a certain number PV panels makes a substantial difference to the overall energy consumption and utility bills over a period. The simulation also helps in calculating simple pay-back periods of retrofit solutions and also life cycle costs. The modelling and simulation tool considers building aspects such as:

  • HVAC
  • Natural and Artificial Lighting
  • Thermal Comfort
  • Ventilation
  • Occupancy
  • Infiltration
  • Acoustics
  • External Weather and Sun path
  • Shading
  • Water Consumption
  • Carbon Emission
  • Life Cycle Costs


  1. The simulation considers sun path analysis to assess the effect of surrounding building on the specific building project in terms of shading and solar gain, and to determine the areas of the building envelope that receive maximum solar gain and need to be taken care of.
  2. It helps to encompass complex envelopes and building systems for analysis.
  3. Simulation tool accounts for minute data while calculating the thermal needs of a building that may not be taken into consideration during a manual energy audit. For example, the climate and location data, surrounding buildings, variation and time profiles of each space, amount of daylight received, number of occupants and more are considered.
  4. Useful for both new and existing buildings: In the case of new buildings, any early strategies that help shape the building’s overall performance can be assessed; and in the case of existing buildings, simulation can determine how the building performs and the engineer can use this platform to ensure that the buildings perform better by making necessary alterations.
  5. Modelling and simulation safeguard’s a building’s architect by making sure the performance goals are met early on, before building completion. The software assists on delivering ambitious performance goals while seeking opportunities to keep costs appropriate.
  6. It helps in pre-design sustainability, enabling the architect to use specific site understanding to proactively outline suitable bioclimatic architecture strategies for the project.
  7. The simulation tool helps the designers/architects to ensure the layout, building form, service strategies and solar orientation are adequate for efficient design.