OctoMass is a grasshopper provides a set of parametric design tools that can be used to create building mass alternatives and evaluate some simulation data results.
The Visual Tracer extension for Grasshopper is a revolutionary tool for the analysis and visualization of spatial visual qualities within digital environments.
Basement and Slab EnergyPlus Ground Heat Transfer Auxilary Programs and Kiva heat transfer IDF modifications (WIP exposed in the GH parametric environment.
The main functionality of this plugin is to combine points, lines, and surfaces to create spatial configurations, and it includes spatial syntax tools for analysis purposes.