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ROI calculator

See what you could save

Put a number on what your plant's hardest problems cost each year. The values below are illustrative starting points. Replace them with your own; every benchmark offered is sourced and dated.

Your plant

Starting value: ABB's reported 2023 median cost of one unplanned outage hour, all sectors.1 Your own margin is the better number. In a batch plant, use batch margin divided by batch hours.

Root cause investigation

Unplanned downtime

69% of surveyed maintenance decision-makers report an unplanned outage at least monthly.1

Surprise equipment failures

Process optimization

Transitions and off-spec

In refining and petrochemicals, transient operations are under 10% of operating time yet carry an outsized share of process safety events and major losses.2

Failed batches and scrapped product

A Merck senior director put a failed biologics batch at "often greater than $1 to $2 million" (2008).3 Count a batch here or under downtime, never both.

Workflow efficiency

Engineering time spent hunting for data and documents

Sources

  1. ABB, Value of Reliability Survey Report, 2023: 3,215 plant maintenance decision-makers. Median cost of one hour of unplanned outage $124,669 across all sectors; chemical $127,563, oil and gas $144,452, food and beverage $84,681, metals $71,047. 69% report at least monthly unplanned outages. No pharmaceutical, pulp and paper or mining figure is published. Self-reported.
  2. Ostrowski and Keim (ExxonMobil), Chemical Processing, 2010, drawing on Duguid (1998): transient operations are under 10% of operating time at a typical refining or petrochemical facility. Concawe, 2021 to 2024 (n=900): 28% of reportable European refining process safety events, and 36% of larger Tier 1 events, occurred outside normal operating mode.
  3. Beth Junker (Merck), quoted in BioProcess International, September 2008. A named expert's statement, dated, not a measurement.

Nothing here is a guarantee. These are the costs of the events themselves, computed from your inputs.

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