Miles and Gail Fursdon created a micro-hydro system on their farm in 1995, using the power of the falling water to generate electricity. The electricity is used by the farm and the surplus exported to the National Grid. In high winter flow, the larger 90kW turbine produces enough electricity for the surrounding villages (approximately 80 homes). When the flow is lower in the summer, a smaller 20kW turbine is used, allowing the system to still produce electricity. The benefits of this system are not just felt by the Fursdons; it has produced advantages for the environment and for educating others too.
With thanks to the NFU: https://www.nfuonline.com/regions/south-west/renewables-gateway/