This from the "Smart User" blog. Well played, with the oxymoron. By virtue of the profoundly deep understanding of the environment he is redressing, I can only assume the author is a member of these United States congress:/
Mechanical or Spinning disk type meters can be read optically or magnetically, or if you have a dig meter with LED interface you can monitor the LED frequency; Both allow for real time monitoring of your homes load. Monitoring the aggregate by collecting at all load points would be better, but that's a bit more complicated.
try: http://web.archive.org/web/20060509092108/http://www.seanadams.com/pge/...for a head start.
SLR-