Honeybee

Honeybee creates, runs, and visualizes daylight simulations using RADIANCE, energy models using OPENSTUDIO, and envelope heat flow using THERM.

What is Honeybee?


Honeybee supports detailed daylighting and thermodynamic modeling that tends to be most relevant during mid and later stages of design. Specifically, it creates, runs and visualizes the results of daylight simulations using Radiance, energy models using EnergyPlus/OpenStudio, and heat flow through construction details using Berkeley Lab Therm/Window. It accomplishes this by linking these simulation engines to CAD and visual scripting interfaces such as Grasshopper/Rhino and Dynamo/Revit plugins. It also serves as an object-oriented Application Programming Interface (API) for these engines. For this reason, Honeybee is one of the most comprehensive plugins presently available for environmental design.


Illuminance Studies
Annual Daylight Studies
Annual Sun Exposure (ASE)
Glare Analysis
Advanced Solar Radiation
Electric Light Modeling/Sizing
Heating Energy Usage
Cooling Energy Usage
HVAC Sizing
Color Zones w/ Energy Results
Energy Balance Visualization
Indoor Thermal Comfort
Microclimate Mapping
Passive Strategies
Active Strategies
Energy Shade Benefit
Envelope Heat Flow Modeling
Condensation Risk Studies

Illuminance Studies

Honeybee allows full customization of point-in-time illuminance simulations.

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  • Annual Daylight Studies

    Calculate all annual daylight metrics (DA, cDA, UDI, ASE) and parse results down to the hour.

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  • Annual Sun Exposure

    Estimate potential for glare with Annual Sun Exposure (ASE).

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  • Glare Analysis

    Perform detailed image-based glare studies to obtain metrics such as Daylight Glare Probability (DGP).

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  • Advanced Solar Radiation

    Run high-accuracy solar radiation studies that account for light reflection and can model concentration of solar energy from parabolic mirror surfaces.

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  • Electric Light Modeling/Sizing

    Run illuminance simulations with IES light fixture definitions to ensure that electric lights are properly sized for given tasks. This can also be used to estimate outdoor light pollution.

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  • Heating and Cooling Energy Use

    Perform detailed annual energy simulations to calculate End Use Intensity (EUI) and estimate annual utility bills.

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  • HVAC Sizing

    Calculate peaks loads and size HVAC systems. Quantify the impact of strategies on the size/cost of HVAC systems.

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  • Color Zones with Energy Model Results

    Understand your model results down to the detail by coloring zones and zone surfaces with results.

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  • Energy Balance Visualizations

    Don't just see WHAT your energy use is. Understand WHY it exists and what is driving it with energy balance graphics.

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  • Indoor Thermal Comfort

    Use energy model results to spatially map thermal comfort, plot results on psychrometric/adaptive comfort charts, and perform a variety of other thermal comfort visualizations.

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  • Microclimate Mapping

    Use energy model results to spatially map both indoor and outdoor microclimates.

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  • Passive Strategy Modeling

    Model a wide range of passive strategies including natural ventilation, earth tubes, evaporative cooling towers, high thermal mass spaces, ventilation chimneys, vented double-skin facades, and virtually any shading geometry.

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  • HVAC Strategy Modeling

    Model a wide range of HVAC strategies including radiant slabs, chilled beams, VRFs, ground sourced systems, heat recovery, custom ventilation schedules, and optimize all of your supply temperatures with parametric studies. If you still find this list limited, you can model virtually any HVAC system using Honeybee's support for OpenStudio measures.

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  • Energy Shade Benefit

    Calculate the region where exterior shade is most desirable to decrease cooling energy use while not affecting heating energy use.

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  • Envelope Heat Flow Modeling

    Model the heat flow through construction details and calculate assembly U-values of windows with different framing details.

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  • Condensation Risk Studies

    Visualize line of dewpoint in construction details and assess condensation risk from energy model surface temperature results.

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