3.1.5. Packaged plant Some CCS technologies require the delivery of packaged plants, generally cryogenic systems. Air separation units (ASUs), required for oxy-combustion, and low temperature separation plants (including gas processing units) both rely on compressors, heat exchangers and turbo-expanders. Each of which, have their own supply issues previously described. Currently, an ASU has a typical lead time of approximately two years. Deployment of the aforementioned technologies will further impose strain on the supply of these products.