Impact of the time resolution for data gathering on loss calculation and demand side flexibility

Accurate data metering is needed for enabling demand side flexibility and the related services. Sufficient resolution in time of the data gathered is essential to obtain detailed information on how consumers and prosumers use electricity. This paper addresses two specific points concerning the effects of the time resolution on (i) the estimation of the network losses, and (ii) the assessment of the average power peak magnitude and duration. Specific indicators are introduced to estimate the losses and assess the peak power based on the load pattern shape. These effects are analysed based on examples taken from real measurements. The results clearly show that the time resolutions used today (from 15 min to 1 hour) are insufficient to perform effective assessments oriented to enhance demand side flexibility. Interval metering with better resolutions (1 min or less) or innovative technologies such as event-driven energy metering should be used to provide significantly better solutions.