In refining, availability refers to the processing capacity of a refinery or individual processing unit that is actually available to be used, as opposed to the name plate or design capacity.

There are two levels of capacity availability that refiners measure:

  • Mechanical availability - Capacity that is physically operable given the hardware constraints of the plant
  • Operational availability - Capacity that is operable given both mechanical availability and any operational constraints such as feedstock availability

The Refinery Reference Desk includes content derived from our industry experts as well as from public data sources such as company websites. Nothing herein is intended to serve as investment advice. This material is based on information that we believe to be reliable and adequately comprehensive, but we do not represent that such information is in all respects accurate or complete. McKinsey Energy Insights does not accept any liability for any losses resulting from use of the content.

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