Assertion: steam engine's use | /r/AtLocation | the 1990s
Facets:
Source sentences:
text: The main use for steam turbines is in electricity generation (in the 1990s about 90% of the world's electric production was by use of steam turbines) however the recent widespread application of large gas turbine units and typical combined cycle power plants has resulted in reduction of this percentage to the 80% regime for steam turbines.