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Which of the following is NOT a valid basis for benchmarking a plant?

  • A.the theoretical minimum for the process
  • B.the consumption of a plant making a different product
  • C.the plant's own consumption in a previous year
  • D.the best performer in the same sector

Answer: B

Correct answer: the consumption of a plant making a different product

A benchmark must compare like with like, and a different product means a different process with a different energy requirement, so the comparison establishes nothing. The other three are all valid bases: the plant’s own history, the best in the sector, and the theoretical minimum.

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