An electrical generating system includes a series of turbine generator assemblies installed within a system housing. The generator assemblies include a turbine assembly attached to a generator assembly. Airflow across the turbine assembly drives the generator assembly. The electrical power generated is transferred to a power management unit via a series of electrical conductors. The turbine assemblies are configured having less than half of a turbine wheel exposed externally from the system housing, allowing the turbines to be driven by passing airflow.