About smart meters, Ross Anderson says...
Does the name Ross Anderson mean anything to you?
Here's a URL to start from: http://www.cl.cam.ac.uk/~rja14/
There, you will find:
"On the security economics of electricity metering appeared at WEIS 2010 and warns that the government's smart meter programme probably won't work. Other papers on security economics and control systems include Security Economics and Critical National Infrastructure (at WEIS 2009); Certification and Evaluation (at IEEE ETFA 2009); and The Protection of Substation Communications (SCADA Security Scientific Symposium, 2010)."
Worth a look.
Mortarbo.... seemed appropriate.