The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- electrical energy storage function (0 members)
- Educational Organization (1 member)
- binary file format (0 members)
- chain (0 members)
- OeoTerm (0 members)
- greenhouse gas (4 members)
- Dauer (0 members)
- biomethane (1 member)
- international transport (0 members)
- full load hours (0 members)
- energy converting component (9 members)
- liter per kilogram (0 members)
- liquefied petroleum gas (0 members)
- user (2 members)
- marine thermal energy (0 members)
- Volume Fraction (0 members)
- data descriptor (5 members)
- Faculty (0 members)
- giga (0 members)
- Hersteller (0 members)
- top down (0 members)
- Heat Capacity (0 members)
- pound (0 members)
- client (0 members)
- Digital Material Identifier (0 members)
- Cross Section Determination (0 members)
- marine wave energy transformation (0 members)
- tank ship (0 members)
- conventional energy carrier disposition (0 members)
- renewable (0 members)
- pressure unit (2 members)
- solar-steam-electric process (1 member)
- textual entity (1 member)
- femtomole (0 members)
- substitution method (0 members)
- solar heat unit (0 members)
- combustible energy carrier disposition (0 members)
- colony forming unit per milliliter (0 members)
- Amorphe Struktur (0 members)
- two axis tracking (0 members)
- gas turbine process (0 members)
- population (4 members)
- passenger transport (2 members)
- electrical energy amount value (2 members)
- code documentation (0 members)
- Chemical (0 members)
- terawatt-hour (0 members)
- fossil municipal waste fuel (0 members)
- megabasepair (0 members)
- gram (0 members)