42 Technology

Substation monitoring has been an area of interest amongst distribution network operators (DNOs) for some time, as the way consumers use and interact with the network changes due to the relatively rapid growth of photovoltaic installations, electric vehicles, domestic-level battery storage and so on. Before these relatively new technologies were widely adopted, it was sufficient to manually record a reading from an analogue maximum demand indicator during a physical inspection once or twice a year, but this is no longer considered sufficient by many in the industry who are now interested in annual and diurnal patterns, harmonics and more.