A power generation system includes a shroud that defines a fluid flow path. A gas turbine engine is in the fluid flow path, and the gas turbine engine includes a compressor, a combustor downstream from the compressor, and a turbine downstream from the combustor. An electric generator is in the fluid flow path upstream from the compressor. The electric generator includes a rotor coaxially aligned with the turbine, and the turbine and the rotor rotate at the same speed.