Energy management system

ISO 50001 — energy management system

It asks you to measure energy performance, establish a baseline and show improvement in numbers. Claiming savings is not enough; they have to be measured.

What it asks for

Measurement is what sets it apart: an energy review is carried out, significant energy uses are identified, a baseline is established, and performance indicators are read against that baseline. When output rises, consumption rises with it — so the indicator is not absolute consumption but consumption normalised to output.

  • Energy reviewConsumption sources and trends are analysed and the significant energy uses identified.
  • BaselineThe period and conditions for comparison are defined; later measurements are read against them.
  • Performance indicatorAn indicator normalised to output, floor area or degree-days is set; absolute consumption alone misleads.
  • Measurement planWhich point is measured how often is planned, including meter calibration.

The text of the standard is not reproduced. Energy efficiency obligations differ by country.

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