I'm surprised there's no mention in the article of SSE Telecom's reported attempts at a "full commercial rollout" of powerline broadband ten years or so ago.
A pair of 2003 interviews with SSE's powerline spokesperson, Dr Keith Maclean, can still be found at ISPreview:
Dr Maclean was at the time also the chairman of the PLC Forum's Commercial and Marketing Working Group.
The IET article says "it was generally up to individual power companies to decide how they implemented their transmission facilities, leaving the possibility of problematic interconnection. "
Where's the problem? The same electricity company supplies the equipment at the customer end (house/office/etc) and the other end (in the substation). No need for any multivendor interoperability, never mind the kind of coexistence on the same wires that xDSL manages to provide. One company (the now defunct DS2) also made most of the PLC chips too, which presumably should have helped compatibility.
Far more significant in the demise of PLC as a means of broadband access were two factors not really addressed in the article: the practical and economic issues.
First, how do the power companies affordably get sufficient high speed data between the substation and the ISP's core network(s)? If the power company can use mass market DSL for it, so can its nearby potential customers. If it can't use DSL, bandwidth costs go through the roof.
And second, how do they keep their cost per connect (involving a site visit for equipment installation on mains wiring?), and their maintenance costs, competitive against user-installable (and sometimes user-replaceable) xDSL?
Lovely idea on paper. Never had a chance of success in the real world.
"high levels of <b>radioactivity</b> in the near vicinity of access BPL lines have the opposite effect of slowing or interrupting data transmission within the power infrastructure"
Who writes this stuff? I thought this was supposed to be a magazine for engineers and technologists. Have I confused it with T3 or PC Advisor?