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Compressed air, in some alternative technology contexts, can be one of the basic utilities next to water, electricity and biogas.
Uses in the appropriate technology context
- small wind installations, mechanically coupled to an air compressor
- energy storage
- to power pneumatic motors
- compressed air water pump
- various ventilation uses (e.g. air exchange in greenhouses, biomass drying, Passivhaus etc.)
- inflatable structures (greenhouses)
- cooling (possibly via vortex tube)
- generate compressed air via (solar) heat engine that directly powers an air compressor