Compressed Air Energy Storage Units for Power Generation and DSM in Korea

摘要

In this paper, we discuss compressed air energy storage (CAES) units, and reflect on a demand-side management (DSM) technique including six generic load shape objectives in the Korea Electric Power Corporation (KEPCO). The CAES technology has been considered for substitute energy utilization not only in regards to the management of large or small loads but also for use by emergency generators during a power failure. Recently, in the energy storage field, countries with CAES have developed small, medium and large units for storage roles. These units can be used for the dual-purpose applications of supplementary power generation and district heating supply systems. These units have an underground cavern or a modular-type pressurized vessel with large and small, micro containers. The storage and utilization time of the CAES are determined by the power between the lower limit and upper limit by the KEPCO load curve patterns over an entire day.