They are made in a variety of sizes up to 1.5 GW (2,000,000 hp) turbines used to generate electricity. Steam turbines are suitable for large thermal power plants.Fewer moving parts than reciprocating engines.Very high power-to-weight ratio, compared to reciprocating engines.Thermal efficiency of a steam turbine is usually higher than that of a reciprocating engine.Since the steam turbine is a rotary heat engine, it is particularly suited to be used to drive an electrical generator.
