[Boatanchors] "Smart" Electric Meters
Robert Nickels
w9ran at oneradio.net
Fri May 9 13:20:20 EDT 2008
Jim Wilhite wrote:
> I have one on my house and there is no resulting RFI from it.
I think this is the norm. There are two issues here, AMR or RMR
(automatic or remote meter reading) which has been done for >20 years
but is rapidly moving from wired to wireless systems based on spread
spectrum mesh networks operating in the 900 mhz or 2..4 ghz bands under
Part 15 rules, and the "Smart Grid" which involves doing load monitoring
and control. See http://www.smartgridnews.com/ for more info about
smart grid activities.
Smart meters are an essential part of the smart grid, but if the
utilities focus on delivery of electrical power and resist the
temptation to get into broadband internet services, hopefully the
technologies they select will not present the kind of interference
potential we saw with at least some of the BPL systems. I think the
market is voting that other forms of broadband delivery are superior to
BPL, but when you put yourself in the shoes of the electrical utility
companies (regulated rates, limited capital investment dollars, and all
this cool technology that can help improve efficiency) - it's
inevitable that they will move in this direction. As long as they do
so in a way that doesn't cause interference to ham radio, as ratepayers
and consumers, we all should benefit.
However, there is always the threat that broadband can be the cash-cow
that pays for the smart grid, as this article indicates:
*http://tinyurl.com/44b9vd
With ARRL taking a proactive position, the systems that are deployed
will be radio-friendly.
*
73, Bob W9RAN
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