Smart grid is the name given to technologies that provide advanced capabilities to these "last mile" customers
I think you are thinking of Advanced Metering (AMI). Smart Grid is the integration of Generation, Transmission, Distribution, Retail, and Consumer technologies.
The spoliation inference is a negative evidentiary inference that a finder of fact can draw from a party's destruction of a document or thing that is relevant to an ongoing or reasonably foreseeable civil or criminal proceeding
"You need tender loving care once a week - so that I can slap you into shape." - Ellyn Mustard