top of page

Understanding the Basics of Building Energy Modeling with HOT2000

As the world becomes more environmentally conscious and energy-efficient, building energy modeling has emerged as a key tool for designing and constructing energy-efficient buildings. One popular software tool used for building energy modeling is HOT2000. In this article, we will explore the basics of building energy modeling with HOT2000 and how it can help Energy Advisors, architects, engineers, and builders create more sustainable buildings.

What is HOT2000?

HOT2000 is a building energy modeling software developed by the Natural Resources Canada (NRCan). It is widely used by architects, engineers, and builders to simulate the energy performance of residential buildings and assess the impact of different design strategies on energy consumption. HOT2000 uses a whole building energy simulation approach, taking into account factors such as building envelope, mechanical systems, lighting, and occupant behavior to predict a building’s energy use.

How does HOT2000 work?

Building energy modeling with HOT2000 involves several steps. The first step is to input the building’s geometry, construction materials, and occupancy schedule into the software. This information is used to create a virtual model of the building, which can be customized to reflect different design options and building scenarios.

Next, users can specify the building’s mechanical systems, including heating, ventilation, and air conditioning (HVAC) systems, lighting, and appliances. HOT2000 allows users to model different system configurations and energy sources to assess their impact on energy consumption and comfort levels.


Once the building model is complete, users can run simulations to predict the building’s energy use under different weather conditions, occupancy patterns, and design strategies. HOT2000 provides detailed reports and visualizations of energy use, including breakdowns of heating and cooling loads, lighting energy consumption, and overall energy performance.



HOT2000


Why is building energy modeling important?

Building energy modeling plays a crucial role in the design and construction of energy-efficient buildings. By simulating a building’s energy performance before construction begins, architects, engineers, and builders can identify opportunities to reduce energy consumption and greenhouse gas emissions. Energy modeling allows stakeholders to explore different design options and building strategies to optimize energy efficiency and occupant comfort.

In addition to reducing energy costs and environmental impact, building energy modeling can also help buildings achieve green building certifications, such as LEED or ENERGY STAR. These certifications recognize buildings that meet rigorous energy performance standards and demonstrate a commitment to sustainability.

How can HOT2000 help?

HOT2000 offers many features and capabilities that make it an ideal tool for building energy modeling. The software includes a library of building components and materials, such as walls, windows, roofs, and HVAC systems, that users can select and customize to match their building design. HOT2000 also allows users to define climate zones, weather data, and occupancy schedules to accurately model a building’s energy use in different locations and seasons.

One of the key benefits of HOT2000 is its user-friendly interface and detailed output reports. The software provides users with visualizations of energy consumption, heating and cooling loads, and thermal comfort levels, allowing stakeholders to make informed decisions about building design and operation. 


In conclusion, building energy modeling with HOT2000 is an essential tool for Energy Advisors, architects, engineers, and builders seeking to create sustainable and energy-efficient buildings. By simulating a building’s energy performance before construction begins, stakeholders can identify opportunities to reduce energy consumption, improve occupant comfort, and achieve green building certifications. With its user-friendly interface, detailed output reports, and advanced simulation capabilities, HOT2000 is a valuable resource for anyone looking to design and construct energy-efficient buildings.

bottom of page