Brick Schema for Buildings
Open-source ontology for buildings and subsystems. HVAC, lighting, electrical systems.
Visit WebsiteBrowse the tree, filter it, or click any class to see just its corner of it.
Where this one tends to earn its keep.
Smart building analytics applications
HVAC energy optimization
Building fault detection and diagnostics
Occupancy-driven building control
I haven't checked this label against the actual licence text — it's the catalogue's original guess. Check the ontology's own site before you rely on it.
Others worth a look in Smart Infrastructure.