Electric double-layer capacitor Transportation applications
China is experimenting with a new form of electric bus (capabus) that runs without powerlines using power stored in large onboard electric double-layer capacitors, which are quickly recharged whenever the electric bus stops at any bus stop (under so-called electric umbrellas), and fully charged in the terminus. A few prototypes were being tested in Shanghai in early 2005. In 2006, two commercial bus routes began to use electric double-layer capacitor buses; one of them is route 11 in Shanghai. [10]
In 2001 and 2002, VAG, the public transport operator in Nuremberg, Germany tested a bus which used a diesel-electric drive system with electric double-layer capacitors.[11]
Since 2003 Mannheim Stadtbahn in Mannheim, Germany has operated an LRV (light-rail vehicle) which uses electric double-layer capacitors.[12][13]
Other companies from the public transport manufacturing sector are developing electric double-layer capacitor technology: The Transportation Systems division of Siemens AG is developing a mobile energy storage based on double-layer capacitors called Sibac Energy Storage [14] and also Sitras SES, a stationary version integrated into the trackside power supply [15]. The company Cegelec is also developing a electric double-layer capacitor-based energy storage system[citation needed].
Proton Power Systems has created the world's first triple hybrid Forklift Truck, which uses fuel cells and battery as primary energy storage and electric double-layer capacitors to supplement this overall energy efficient storage solution.[16]
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