Evolution of pumped storage

摘要

Pumped storage continues to steadily evolve in order to meet the needs of the times as a technology contributing to the effective operation of electric power systems. Considering the scale of electric power storage and the speed of response to variations in power demand, pumped storage is one of the best solutions to ensure that electric power output remains constant to the greatest degree possible. High expectations are therefore being placed on this technology in the future as well. For the purpose of economization, it is necessary to reduce construction costs by achieving higher head, higher speed, and larger output of pumped storage units, as well as higher performance and reliability. Toshiba will remain a leader in such technical evolution in this field in the coming new century.