Stirling Dynamics Ltd, Chennai, have come up with a new engine, the ' hamara st-5', which offers an immense potential as a power source for water pumping, electricity generation and chaff cutting in farms. It utilises combustible wastes like rice husk, sawdust and wheat husk for power generation, unlike the currently used engines that are based on diesel or grid electricity. The system has been developed on a mobile chassis, so that it can be easily transported to the field site ( Rural Technology , Vol 13, No 1).