Analysing Seasonal Performance Factor: Heat Pumps for Commercial Hot Water

How do we assess heat pump performance across a full year, and what does this mean for commercial domestic hot water (DHW) systems?

This CIBSE-approved CPD, presented by Rinnai UK, explores Seasonal Performance Factor (SPF) and its relationship with Seasonal Coefficient of Performance (SCOP). The session will examine why SPF is an important measure when evaluating heat pumps for commercial hot water applications.

SPF compares the total heat delivered with the total electricity consumed over an annual period, reflecting performance as outdoor temperatures change.

Through a study and case example, the presentation will cover:

• The problem statement and study objectives.
• The methodology and underlying assumptions.
• Case study results and conclusions.
• The relevance of SPF alongside SCOP for commercial DHW applications.

The session is relevant to building services engineers, consultants, designers, estates and facilities teams, and anyone involved in specifying or assessing commercial heat pump systems.