Would there be issues with interference?
We have not written about the use of passive high-frequency (HF) or ultrahigh-frequency (UHF) radio frequency identification systems in electric substations, so I don’t have any hard evidence about whether or not there would be interference. I expect that there would be some with passive UHF systems, though how extensive it would be is difficult to say. In any case, I don’t think that the interference would render tags unreadable—it would more likely just reduce the read range. I would recommend performing some testing with the RFID solution you are considering deploying, in order to determine how much any potential inference would limit the system’s effectiveness.
—Mark Roberti, Founder and Editor, RFID Journal