Baselines, adjustments, and measurement.
Learning Track · Module 4: Energy and carbon · Step 29 of 101
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- Measure the baseline for some weeks before the change, with burn hours and connected load.
- Make the change.
- Measure the result with the same meters and method.
- Adjust for differences, mainly night length.
Saving = (baseline kWh per burn hour − new kWh per burn hour) × burn hours
IPMVP is the common method worldwide. ISO 50015 also covers measurement and verification. South Asia: In India, BEE provides guidance for M&V in ESCO projects. USA: ASHRAE Guideline 14 is also used.
Note
Without data from before the change, you cannot prove the saving later. Start to record energy now.
Sources
- IPMVP Core Concepts (Efficiency Valuation Organization)
- ISO 50015 Measurement and verification of energy performance
- ASHRAE Guideline 14 Measurement of energy, demand, and water savings
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