Design and Operation Experience of Latest Advanced Combined -Cycle Plant Construction of Unit No. 4-1 Higashi Niigata Thermal Power Station of Tohoku Electric Power Co., Inc.-

摘要

High thermal efficiency power plants are beinginstalled world-wide to meet requirements for energy resourcesaving and global environmental conservation. Advancedcombined-cycle power plants are attracting attention due to theirhigh thermal efficiency. Mitsubishi Heavy Industries, Ltd.,installed a large-capacity, high-efficiency 1090 MW combined-cycle power plant as Unit No.3 in the Higashi Niigata ThermalPower Station of Tohoku Electric Co., Inc. in 1984. We alsoinstalled an advanced combined-cycle power plant usingM701G gas turbines as Unit No.4 at the same site. In July 1999,805 MW Unit No.4-1 began commercial operation, combiningexcellent performance with high reliability.