A fluid powered turbine comprising: an elongate, hollow pipe, a rotatable turbine, operable by fluid flow, housed within the hollow pipe at or near a first end thereof, and a fluid directing structure affixed to the pipe at or near its second end spaced from the first end, wherein the fluid powered turbine comprises: at least one fluid flow conduit extending within the pipe and connecting the fluid directing structure with the rotatable turbine such that fluid flow within the directing structure can be directed to the rotatable turbine to operate the rotatable turbine, characterized in that the fluid directing structure has a plurality of individual inlet openings spaced around its periphery and the fluid directing structure has a means to direct fluid at each inlet opening to a fluid outlet in communication with said fluid flow conduit, and in that the fluid directing structure is arranged to draw fluid into the fluid flow conduit and to increase the speed of the fluid directed to the rotatable turbine and in that the fluid directed to the rotatable turbine is constrained to flow within the pipe back towards the fluid directing structure after exiting the rotatable turbine and then to exit the fluid directing structure, the exiting of the fluid from the turbine being arranged to increase the mass flow rate of the fluid. an elongate, hollow pipe, a rotatable turbine, operable by fluid flow, housed within the hollow pipe at or near a first end thereof, and a fluid directing structure affixed to the pipe at or near its second end spaced from the first end, wherein the fluid powered turbine comprises: at least one fluid flow conduit extending within the pipe and connecting the fluid directing structure with the rotatable turbine such that fluid flow within the directing structure can be directed to the rotatable turbine to operate the rotatable turbine, characterized in that the fluid directing structure has a plurality of individual inlet openings spaced around its periphery and the fluid directing structure has a means to direct fluid at each inlet opening to a fluid outlet in communication with said fluid flow conduit, and in that the fluid directing structure is arranged to draw fluid into the fluid flow conduit and to increase the speed of the fluid directed to the rotatable turbine and in that the fluid directed to the rotatable turbine is constrained to flow within the pipe back towards the fluid directing structure after exiting the rotatable turbine and then to exit the fluid directing structure, the exiting of the fluid from the turbine being arranged to increase the mass flow rate of the fluid. at least one fluid flow conduit extending within the pipe and connecting the fluid directing structure with the rotatable turbine such that fluid flow within the directing structure can be directed to the rotatable turbine to operate the rotatable turbine, characterized in that the fluid directing structure has a plurality of individual inlet openings spaced around its periphery and the fluid directing structure has a means to direct fluid at each inlet opening to a fluid outlet in communication with said fluid flow conduit, and in that the fluid directing structure is arranged to draw fluid into the fluid flow conduit and to increase the speed of the fluid directed to the rotatable turbine and in that the fluid directed to the rotatable turbine is constrained to flow within the pipe back towards the fluid directing structure after exiting the rotatable turbine and then to exit the fluid directing structure, the exiting of the fluid from the turbine being arranged to increase the mass flow rate of the fluid.