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Old banknotes, which are out of circulation, have been used to generate electricity for the first time in China. These old bank notes were earlier used to make paper products.
The undated photo shows stacks of old banknotes that have been withdrawn from circulation in central China's Henan province.
An electricity generation plant using old notes from the People's Bank of China in Zhengzhou was set up in April this year as a pilot project to test the feasibility of the idea. The power plant was set up in Luoyang city in central China's Henan province.