This device, consisting of gas producer, cooler, filter, motor and generator, has a high degree of generating efficiency.

The machine is very practicable as rice chaff can be easily taken from mills and food administration stations across the country.

Kim Myong Chol, chief engineer of the Hwangju County Food Administration Station in North Hwanghae Province, told KCNA that only 40 percent of the rice chaff obtained at the station at present is enough to produce electricity for itself."

It can produce 50 kw of electricity by burning 100 kg of rice chaff in an hour, 235 000 kw per year.