DesignBuilder is a building-performance modelling and simulation software that provides a graphical interface for the EnergyPlus simulation engine. It enables users to create digital building models and assess energy consumption, heating and cooling demand, carbon emissions, indoor thermal comfort, daylight, natural ventilation and HVAC performance. Within EXCEL4Housing 4.0, the tool can support training and practical assessment of energy-efficient construction and renovation solutions by allowing users to compare alternative materials, envelope systems, building services and operational scenarios.
Keywords
Objectives
To digitally model building performance, estimate operational energy demand and carbon emissions, evaluate indoor environmental conditions, assess HVAC and passive-design strategies, and compare alternative construction or renovation scenarios before implementation.
Target audience
Architects, building engineers, energy-performance specialists, HVAC specialists, sustainability consultants, energy assessors, researchers, educators and students.
Benefits
DesignBuilder combines detailed EnergyPlus calculations with a visual 3D interface, making building simulation more accessible. It helps users identify energy-saving opportunities, compare design and retrofit alternatives, assess overheating and comfort, size heating and cooling systems, and make evidence-based decisions. It also supports BIM/CAD data import and parametric assessment.
Data requirements
Building location and weather file; building geometry and orientation; thermal zones; envelope constructions and material properties; windows, glazing and shading; occupancy and activity schedules; lighting and equipment loads; ventilation and infiltration rates; heating, cooling and HVAC-system information; renewable-energy systems; and operational schedules. The required level of detail depends on the purpose and stage of the assessment
Learning Profiles addressed
- BIM for Energy & Lifecycle Specialist
- Deep Retrofit Site Coordinator
- Energy Renovation & Performance Specialist
- HVAC & Renewable Integration Specialist
- Lifecycle Carbon & Climate Compliance Specialist
- Smart Building Systems Integrator
- Sustainable Construction Project Manager
Examples of application
How to use the tool – Tutorials
Language
English, French, Italian and German. Spanish versions are available through authorised Spanish-speaking representatives
Cost
Commercial software
