... understanding information entropy in the power grid per kilowatt of power delivered or the radio frequency communication power expended within the power grid per kilowatt of power delivered will be more valuable than understanding the detailed packet structure of a half-dozen supervisory control and data acquisition protocols.

Bush, Stephen F., Smart Grid: Communication-Enabled Intelligence for the Electric Power Grid, ISBN: 978-1-119-97580-9, 576 pages, March 2014, Wiley-IEEE Press.