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Woojin/Maxwell Incheon Line 2 - Wanggil Station (202)

Technology Type Electro-chemical Capacitor
Rated Power 1200 kW
URL More about Woojin/Maxwell Incheon Line 2 - Wanggil Station (202)
Woojin Industrial Systems has completed installation of its energy storage system (ESS) ultracapacitor-based braking energy recuperation systems in seven Metro stations in Seoul, Daejon, Incheon and the Korea Train eXpress (KTX) high-speed rail depot in Seoul. Beginning with installation of demonstration systems in 2009 under a contract with the Korean federal government's Korean Railroad Research Institute (KRRI), Woojin and rail system operators have achieved grid power consumption savings of more than 20 percent and realized additional benefits in the form of system voltage stabilization that reduces power infrastructure requirements and helps to ensure uninterrupted operation. The recuperation systems, ranging from 750 to 1,500 volts, employ Maxwell ultracapacitors to absorb energy during rail vehicle braking and deliver the stored energy to the vehicles' electric motors for propulsion and to stabilize voltage throughout the system. Each installation employs up to 200 of Maxwell's 48-volt multi-cell ultracapacitor modules. Based on their positive experience to date, Woojin and rail system operators are planning several additional installations in 2014 and 2015.
This data has been validated by project staff through a review of publicly available information about the project, and verified by the project owner.
Project Status
Status Operational
Project Includes Multiple Systems No

Incheon, Incheon
Korea, South

Utility Korea Electric Power Corporation (KEPCO)
Utility Type Federally Owned
Paired Grid Resource
Project Includes Multiple Systems No
Ownership & Value Chain Partners
Ownership Model Customer-Owned
Equity Owner 1 Incheon Transit Corporation
Energy Storage Technology Provider Maxwell Technologies
Power Electronics Provider Woojin Industrial Systems
Integrator Company Woojin Industrial Systems
Developer Woojin Industrial Systems
Cost & Performance
Performance N/A
Service Use Case Electric Energy Time Shift
Transportation Services
Voltage Support
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