I got the information about steam turbines havig been replaced since the 1980's by gas turbines and diesel engines from https://en.wikipedia.org/wiki/Steam_turbine which is probably not the most reliable source of information.
The page that says "Because the turbine generates rotary motion, it is particularly suited to be used to drive an electrical generator – about 90% of all electricity generation in the United States (1996) is by use of steam turbines"
Or are you talking about the use on boats, in a mobile situation where weight is more important than power output, and which is irrelevant to internet infrastructure.
