Siddhapa
An illiterate farmer from rural Karnataka, Siddappa has designed a water mill to generate electricity and operates it in the canal near his house. He spent just Rs. 5,000 on the construction and gets 150 watts of power from this water mill when water flows in the canal. He claims he could generate electricity for the entire village through his machine if he could get a regular supply of water through the canal. The only obstacle is that the canal has water for only three months a year. Siddappa is an example of how one can bring a larger change without having enough resources or education.
Source: https://www.thebetterindia.com/2904/farmer-water-mill-electricity/