The 501G 60-Hz combustion turbine has been developed jointly by Westin
ghouse Electric Corporation, Mitsubishi Heavy Industries, Ltd., and Fi
atAvio. It continues a long line of large heavy-duty single-shaft comb
ustion turbines by combining the proven efficient and reliable concept
s of the 501F with the latest advances in aero technology via the West
inghouse Alliance with Rolls-Royce. The output of the 501G is over 230
MW with a combined cycle net efficiency of 58 percent. This makes the
501G the largest 60-Hz combustion turbine in the world and also the m
ost efficient.