Understanding Energy Modelling
Building energy modelling, or energy simulation, is a computational method used to predict a building’s energy performance, peak demand, GHG emissions, or renewable energy production. These tools also cover a range of additional assessments, load sizing, thermal comfort, natural ventilation, daylighting, HVAC & envelope system optimization. It involves creating a virtual representation of a building and its systems to simulate the building’s performance against various passive and dynamic impacts. By analyzing factors such as building materials, the effects of thermal bridging, HVAC/DHW systems, orientation, shading, etc., using local weather files and topographical geometry for your specific climate region and location, energy modelling helps optimize design decisions, assess compliance with energy codes and standards, and identify opportunities for energy savings, sustainability improvements and increased resiliency.
Energy Modelling Services
- Incentive/Funding Procurement
- Renewable Energy Feasibility Study
- Retrofit Analysis
- Code Compliance
- Integrated Design Process
- LEED Compliance
- Municipal Green Standard Compliance
- Zero Carbon Building Design
Energy Modelling Tools
- IESVE: Advanced Building Energy Simulation Software
- eQUEST: Building Energy Simulation Software
- HOT2000: Residential Housing Energy Simulation Software
- RetScreen: Clean Energy Management Software
- Carrier’s HAP: HVAC Load Sizing & Building Energy Simulation Software
- HelioScope: Solar Photovoltaic Simulation Software
- THERM: Thermal Performance Assessment Software
- DiaLux: Lighting Design Software
What steps are involved in our Energy Modeling Process?
Our energy modeling process helps you understand the energy performance of your building and identify opportunities for improvement. Here’s how we approach it:
Pre-Assessment & Data Collection
Model Development & Simulation
Scenario Evaluation & Optimization
Energy Modeling Output Report
Pather: Your Trusted Partner for Comprehensive Energy Modeling. Start Your Energy Modeling Now
What you will Receive

Energy Performance Breakdown
A comprehensive analysis of your building’s energy use, peak demand, and energy consumption by system (HVAC, lighting, etc.), giving you a clear understanding of how energy is being utilized throughout the building.

Carbon Emissions & Savings Analysis
We quantify the potential reduction in carbon emissions through energy-saving measures, from improved insulation to more efficient HVAC systems. This data allows you to prioritize strategies that reduce your building’s overall carbon footprint.

Scenario Comparisons & Recommendations
Side-by-side comparisons of alternative design strategies, including material choices, HVAC configurations, and energy systems. We identify the most sustainable and cost-effective solutions, considering both short-term costs and long-term benefits.

Compliance & Certification Support
Our energy models are aligned with building codes and sustainability standards, such as the Ontario Building Code (OBC), the Toronto Green Standard (TGS), Passive House, LEED, and others. We provide the documentation necessary to support certification applications and ensure compliance with municipal and provincial green standards.
Achieve more with advanced energy modelling
We deliver advanced energy modelling to help you optimize your building’s performance and efficiency. Trusted by businesses nationwide, our expert analysis identifies opportunities to reduce energy consumption, lower costs, and enhance sustainability. Make informed decisions with data-driven insights—partner with us today for smarter, more efficient buildings
