The Chinese Petroleum Corporation announced plans to install a large electric generator at Chingshui in Ilan in the summer of 1977, after the company found major resources of thermal heat from the No.4 well.
中國石油公司台灣油礦探勘總處，在宜蘭清水區鑽探的清水四號地熱井，現已順利完成，並預定今年年中裝設發電機發電。