DaChan Bay Terminals (DCB) is part of the Port of Shenzhen, the third-busiest container port in the world. To handle ship traffic DCB deploys a full fleet of electricity-powered rubber tyred gantry cranes (e-RTGs) and dual hoist tandem-lift QCs, which are able to simultaneously handle two 40-foot containers. DCB is the world's first container terminal to deploy a full fleet of e-RTGs, using electricity instead of diesel. E-RTGs emit no CO2 emissions during their operations in terminals and their indirect CO2 emissions are 60% lower than those of diesel-powered RTGs. All quay cranes are also electricity-powered. These cranes are able to simultaneously handle two 40-foot containers or four 20-foot containers with lower energy consumption and higher productivity.