Method of operating a power plant

At least one main air compressor (12) makes a compressed ambient gas flow (26, 66). The compressed ambient gas flow (26, 66) is delivered to both master and slave turbine combustors (32, 72) at a pressure that is greater than or substantially equal to an output pressure delivered to each turbine combustor (32, 72) from each turbine compressor (30, 70) as at least a first portion of a recirculated gas flow (50, 90). A fuel stream (28, 68) is delivered to each turbine combustor (32, 72), and combustible mixtures are formed and burned, forming the recirculated gas flows (50, 90). A master and slave turbine power are produced, and each is substantially equal to at least a power required to rotate each turbine compressor (30, 70). At least a portion of the recirculated gas flows (50, 90) are recirculated through recirculation loops (52, 92), at least a portion of the output from the turbine compressors (30, 70) bypass the combustors (32, 72), and an excess portion of each recirculated gas flow (50, 90) is vented.