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Terminology Conflict: Austrian legislation uses "technical service lifetime," while the EU Energy Efficiency Directive (EED) refers to "average product lifetime," creating ambiguity in assessing energy savings from motor replacements.
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Early vs. Post-Life Replacement:
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Early replacement: Reference energy consumption is based on "normalized final energy consumption" until the motor’s technical lifespan ends.
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Post-life replacement: "Legal minimum requirements" apply if no market average exists.
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Practical Challenges: Estimating remaining motor lifespan is speculative, as future repairs or usage are unpredictable. Pragmatic reliance on the M7140 standard (economic efficiency) has been used historically.
- Strategic Goal: Prioritize motor stock renewal for efficiency gains, balancing calculation accuracy with administrative effort.
Key Takeaway: Clarify terminology and adopt flexible methodologies to accelerate motor replacements while acknowledging data limitations.