The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- SoftwareLicence (0 members)
- TemplateGeneratedOntologyModule (0 members)
- CompressedBiomethane (0 members)
- LiquefiedPetroleumGasCar (0 members)
- DieselEngine (0 members)
- Slug (0 members)
- HardCoalPowerUnit (0 members)
- Elliptical (0 members)
- Blank (0 members)
- AbsorbanceUnit (0 members)
- FossilCombustionFuel (6 members)
- AgingInterval (0 members)
- CombinedHeatAndPowerGenerationProcess (0 members)
- Switchyard (0 members)
- TransportPerformanceValue (0 members)
- GridSuppliedElectricVehicle (0 members)
- FiatObjectPart (1 member)
- Fee (0 members)
- Kibibyte (0 members)
- Prüfkörpername (0 members)
- TransitionPoint (1 member)
- Hour (0 members)
- RooftopPhotovoltaicPowerPlant (0 members)
- PvPanel (0 members)
- OSW3722e97235a65b75b37534311e80b1c2 (1 member)
- Bridge (0 members)
- LevelisedCostOfElectricity (0 members)
- OwlThing (4 members)
- PhysicalItem (1 member)
- NuclearPowerPlant (0 members)
- UndergroundHydrogenStorageObject (0 members)
- Brucheinschnürung (0 members)
- Variable (3 members)
- Kilodalton (0 members)
- HydrogenFuelCell (0 members)
- Parameterisation (0 members)
- ThermalEnergyStorageFunction (0 members)
- ForecastError (0 members)
- RiskAssessmentProcess (0 members)
- Decibel (0 members)
- EnergyDemand (2 members)
- AggregationType (0 members)
- ImageResolutionUnit (3 members)
- SolidFossilFuel (3 members)
- WrittenName (0 members)
- Nanogray (0 members)
- CreepStress (0 members)
- PurityPercentage (0 members)
- CalibrationDocument (0 members)
- Provider (0 members)