A major advantage of using the TDWG with train traffic is the potential to capture energy from three sides, whereas the need to change a flat tire and have a safety lane on normal roads precludes anything but an upper mounting. A second advantage is the closer proximity of the train body to the vanes, which allows more energy capture, since trains pass very closely to tunnel walls, poles, etc. Electric trains can efficiently derive some of their operating power directly from the TDWGs, rather than from utility plants burning hydrocarbons and sited at great distances.
Railway Self-Standing Structures
A high-speed train passes through a series of TDWGs mounted on dedicated structures similar to those typically used for radio antennas. The rotor vanes in this type of application can work with trains moving in either direction by using generators with automatic polarity switching. A structure holding 6 rotor assemblies in 3 pairs will balance the weight forces, and it can be positioned within 20 feet of its neighbor, for an almost unlimited distance.
A sufficient number of rotor assemblies could be installed to provide electricity for the electromagnets of a Magnetic Levitation (Maglev) train. These trains can reach speeds of 400 mph, and their use could help reduce the congestion and air pollution at airports. For conventional diesel-powered trains, the electricity can be measured and sent to the local grid, with the train company being suitably compensated, and the utility company meeting its percentage of clean energy government mandates.