A practical guide that surveys the potential of small creeks and brooks to provide on-site power for farms and country homes, explaining basic hydropower principles, storage and site considerations, cost factors, and types of generators and plant layouts. It reviews common farm applications such as lighting, milking and other machinery, compares electric and fuel-based illumination costs, and describes examples of small installations and their operation. Emphasis is placed on conserving wasted water energy, evaluating feasibility, and offering fundamental technical and economic advice to help landowners decide whether to develop a stream for local power.