1:1:E:4. Fuel storage

Three categories of fuels are being investigated for use at Aurora:

1. Gaseous hydrocarbon fuels

2. Fuel oils

3. Hydrogen

Common hydrocarbon fuels will freeze in Antarctica without continual heating; fuel tanks being actively used will need to be kept warm. The current plan calls for an entire generator building to be heated. Internal combustion engine (ICE) waste heat will likely be sufficient to keep fuel stored inside the building warm; if all habitat modules are insulated to the same R-value, the heat output of most types of generators would be sufficient to maintain the temperature gradient. The habitat construction standard (1:1:H) calls for this, as it means buildings can be redesignated for different roles as the station's needs change.

Gaseous hydrocarbon fuels will be stored as liquids under pressure. Fuel oils can be stored at atmospheric pressure. All fuels not slated for immediate use can be allowed to freeze, to be thawed when needed.

Hydrogen storage is discussed in 1:1:E:3.