Define the comparison you need to make
A baseline may support a review of site performance, assessment of a project or an energy management system. The purpose determines which sites, systems and operating periods to include and how much detail is needed.
Match energy records to operations
Index utility bills, available submeter readings, operating hours and relevant activity data. Record which facilities or equipment each source represents. Check whether the periods and units can be reconciled before comparing figures.
Document changes and limitations
Note missing periods, estimated readings, changes to equipment and significant differences in production or schedules. Consider other relevant conditions, such as weather, where they can affect the comparison. Record which assumptions need verification.
Set a basis for action
Use the review to decide where better measurement is needed and which opportunities merit further technical or commercial assessment. Define how the team will check results after a change.
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Establish energy baselines, performance indicators and an ISO 50001 management programme.
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