A water tower includes a reservoir configured to store fluid. The reservoir includes a bottom surface. The water tower also includes a recirculating passageway fluidly connected to the reservoir. The recirculating passageway includes a first end connected to and located near or below the bottom surface of the reservoir, and a second end connected to the reservoir above the bottom surface of the reservoir. The water tower further includes a pump located in the recirculating passageway and configured to pump fluid through the recirculating passageway, and a fluid-driven energy generating device fluidly connected to the recirculating passageway. At least a portion of fluid directed through the energy generating device is directed through the recirculating passageway.