No, that is not what I am claiming. If you read the article, the author claims that the 2 unused networks are a source of interference. I'm simply claiming that

No, that is not what I am claiming. If you read the article, the author claims that the 2 unused networks are a source of interference. I'm simply claiming that a busy or utilized hotspot will be a much larger source of potential interference than an unused network doing nothing but broadcasting a few beacon frames every few ms. Your power calculation is only based on the power of the broadcasting signal, not evaluating the electrical load on the router to do so or to process received signals and process traffic (performing NAT, encapsulation, etc.) The article I linked you to clearly states this >According to Speedify’s testing, the router draws 0.14 amps when idle and 0.22 amps when loaded. By the company’s calculations, this comes out to roughly $23 per year at mid-Atlantic power rates