algorithmic modeling for Rhino


Ladybug + Honeybee

Ladybug and Honeybee are two open source environmental plugins for Grasshopper to help designers and engineers create an environmentally-conscious building design.

Installation Instructions

Download Ladybug and Honeybee

Remove Old Version

Ladybug PrimerHoneybee Primer

Example Files for Ladybug

Example Files for Honeybee

Ladybug on GitHub

Honeybee on GitHub

Use this Reference for your Publications.

Licensed under @license GPL-3.0+

Read more here

Members: 1140
Latest Activity: 1 hour ago


What is Ladybug?

Ladybug is an open source environmental plugin for Grasshopper3D that helps architects and engineers create an environmentally-conscious architectural design.  Ladybug imports standard EnergyPlus Weather files (.EPW) into Grasshopper and provides a variety of 3D interactive graphics to support the decision-making process during the initial stages of design.

What is Honeybee?

Honeybee connects Grasshopper3D to EnergyPlus, Radiance, Daysim and OpenStudio for building energy and daylighting simulation.The Honeybee project intends to make many of the features of these simulation tools available in a parametric way.

You can get started by watching this video:

Here are four separate playlist:

Want to see a full presentation?

Check out this presentation or watch it: Part1Part 2

And this video here:

Discussion Forum

Outdoor Microclimate Map issue 2 Replies

Hi everyone!Thank you again for the fantastic tool you developed! It's really giving me a considerable help in developing my thesis work.Last time I wrote here asking help about the evaluation of UTCI and PET through the "Outdoor comfort…Continue

Started by Francesco Scarpati. Last reply by Francesco Scarpati 1 hour ago.

Error with comfort mannequin

I've been following Chris' tutorial specifically the Outdoor UTCI tutorial under Ladybug Comfort tutorials and I'm wondering why the comfort mannequin component is getting an error. I've tried both plugging in data from the epw and using plain…Continue

Tags: Ladybug

Started by Pin 6 hours ago.

any update on the Butterfly?

may i ask if there is any update on the development of the butterfly component to connect GH to OpenFOAM for CFD simulation?BTW, any recommendation on OpenFORM learning materials?Much obliged!Continue

Started by Grasshope 10 hours ago.

Modifying EP construction after zone creation 4 Replies

Hi All!I have a complete energy model ready and running. However, there is a need to assign separate EP glazing construction on one facade and keep as it is on others. Now, since I have the complete model ready, I do not want to start everything…Continue

Started by Ram Joshi. Last reply by Ram Joshi 11 hours ago.

Window setback / outside reveal 2 Replies

Hey there!How can I generate windows that are set back inside the wall?Would it be possible to add a function to the "addHBGlz" Component for specifying the depth of the outside reveal? (the inside reveal and inside sill depth have to be entered…Continue

Started by Albert Pressler. Last reply by Abraham Yezioro 11 hours ago.

front and back reflectance of a glass 4 Replies

Hi everybody;For daylight analysis, if I have a glass with different reflectances in front and back, how can i set them?Thanks a lotContinue

Started by masoome. Last reply by Ram Joshi 11 hours ago.


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