The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Prüfkörpername (0 members)
- Transition Point (1 member)
- act of foundation (0 members)
- hour (0 members)
- rooftop photovoltaic power plant (0 members)
- organization (2 members)
- PV panel (0 members)
- OSW3722e97235a65b75b37534311e80b1c2 (1 member)
- bridge (0 members)
- levelised cost of electricity (0 members)
- OwlThing (10 members)
- Physical Item (2 members)
- nuclear power plant (0 members)
- underground hydrogen storage object (0 members)
- Brucheinschnürung (0 members)
- variable (3 members)
- kilodalton (0 members)
- hydrogen fuel cell (0 members)
- parameterisation (0 members)
- thermal energy storage function (0 members)
- forecast error (0 members)
- Risk assessment process (0 members)
- decibel (0 members)
- energy demand (2 members)
- material science database (0 members)
- aggregation type (0 members)
- image resolution unit (3 members)
- solid fossil fuel (3 members)
- postal address (0 members)
- written name (1 member)
- nanogray (0 members)
- Creep Stress (0 members)
- purity percentage (0 members)
- Chemical Composition Specification (0 members)
- Calibration Document (0 members)
- file data item (0 members)
- provider (0 members)
- ontology module (5 members)
- Value Scope (2 members)
- fuel commodity (0 members)
- heat transfer unit (1 member)
- pixels per inch (0 members)
- Particle (0 members)
- parts per trillion (0 members)
- dataset creation process (0 members)
- water flow (3 members)
- abated steam reforming hydrogen (0 members)
- time stamp (0 members)
- EL++ ontology module (0 members)
- Knoteninformation (7 members)