A hydro-electric power system includes two containers and a support beam having two ends, each end holding one of the containers. The ends allow the containers to travel along a length of the support beam. The support beam pivots about a pivot point, giving each container a maximum height and a minimum height. Water flows into each of the containers when they are located at or near their maximum height, the flow of water weighting each container and causing it to descend, each container moving longitudinally outward from the pivot point along the support beam as it descends. A tipping mechanism causes each container to release water at or near its minimum height, each container ascending after releasing water and moving longitudinally inward toward the pivot point along the support beam as it ascends.