AQVOCLIMA Insight

COP vs SCOP: Which Efficiency Number Matters More?

COP is a snapshot. SCOP is a season. If you care about yearly cost, SCOP usually wins — but only when compared correctly.

AQVOCLIMA Technical Team · Updated 21 August 2026

Practical takeaway

Use COP to compare performance at a specific condition (e.g., A7/W35). Use SCOP to estimate seasonal efficiency when the system modulates across temperatures.

  • Compare within the same water temperature category (35°C vs 55°C).
  • Check climate class assumptions if provided.
  • Use seasonal metrics for cost planning; use point metrics for sizing checks.