Energy Simulation and Modeling
An energy model calculates how much energy a building is expected to use. Modeled energy consumption in a building can relate to space heating, cooling, water heating and use, ventilation, lighting, appliance and plug loads as well as internal heat gains that are caused by occupants
We use the HOT2000 software platform to do residential building energy simulation and modeling that can be used to plan energy improvements in new home construction as well as renovation or retrofitting existing homes. We are trained, certified, and licensed by NRCan to use this platform . We are also trained and tested on a regular basis by a licensed Service Organization to deliver the EnerGuide Rating System. As certified energy advisors we have the necessary competencies (e.g. experience, knowledge, abilities, skills, attitudes and judgment) to perform these services effectively and within the national EnerGuide Rating System (ERS) procedures.
What is HOT2000?
HOT2000 is an energy simulation and modeling computer program developed and maintained by Natural Resources Canada to support the EnerGuide Rating System, ENERGY STAR for New Homes, and R-2000 residential energy efficiency initiatives.
Our energy advisors use HOT2000 modeling software as well as other F280 protocol approved software packages to calculate the building’s expected heat loss , heat gain and energy consumption under the climatic conditions recorded for the location of the building.
The energy model accounts for the size and geometry of the building, the climate at the building’s location, the effective insulation values of assemblies such as walls, ceilings, windows and doors, and the mechanical systems that keep the house comfortable and provide hot water. By adding upgrades to the model, we can predict the energy and greenhouse gas emission saving or reduction caused by the implementing the specific upgrade.
Why Do You Need an Energy Model?
Energy Modeling is required by the BC Energy Step Code for Part 9 Residential Buildings and by some Existing Homes Energy Savings Programs.
Measuring and accessing energy performance through benchmarking is also gaining momentum as the government sees labeling as an important initial step in identifying energy efficiency improvement opportunities.
Home builders in some Canadian cities are already required to disclose an EnerGuide Label for all new low-density homes and this could also be expanded to homes that are being sold.
By disclosing the energy performance ratings of homes, builders and homeowners can more accurately assess the energy costs and the associated greenhouse gas emissions of ownership and operation, as well as assign value to energy efficiency when buying, selling or renovating a home.
When do we do the HOT2000 Energy model or Simulation?
Energy modeling is included in all our Energy Assessments (New and Existing Homes)
This simulation is based on standardized values for occupancy, use, temperature settings and some assumptions where the information is not available. The results are enhanced with onsite tests and data gathering.
How accurate is the simulation?
HOT2000 modeling software use advanced simulation capabilities and detailed analyses, and plays a pivotal role in driving transformative change within the realm of sustainable construction and design in Canada. It has also proven itself to be a stable and powerful tool in the delivery of many federal, provincial and local energy efficiency programs over the past 20 years.
Data accuracy is supported with photos taken during the site visit and could include photographic records of the building, equipment, labels as well as building envelope, insulation and mechanical systems. Records are also used for quality assurance by the Service Organization.
Measurements and tests can include visual, photographic as well as infrared thermal scans as well as blower door tests, duct flow tests and analysis)
Pre- and Post-Retrofit Energy assessments as well as the Final Construction Assessment (Required for Step Code Compliance report and Occupation permit) will include a blower door test. This test is usually combined with an infrared thermal scan of the building that will help homeowners or builders to improve the air sealing of the building.
