A fluid handling and cogeneration system has an inlet conduit receiving a fluid, a housing having a inlet end, a outlet end and an interior surface. The housing encloses an inner body which together with the housing is arranged to form an annular space between the interior surface of the housing and an exterior surface of the inner body. The system also includes at least one diverter configured such that the fluid is directed to circulate around the inner body and traverse the annular space from the diverter toward the outlet end of the housing in an organized fashion. A generator is provided within the housing to harness the fluid traversing the annular space to generate electrical power.