(Click to enlarge)(from: http://jasss.soc.surrey.ac.uk/16/4/7.html)
Applied to renewable technology, it could be the point where everyone has an electric car, all houses are covered with solar panels with battery backup, and all central power stations rely on wind, tides, currents and sun, while algae-based oils power airplanes.
You can see this for phones here (Click to enlarge):
|So rich and pwoerful he has a private helicopter, yacht and "Gasp!" a cell phone!|