Teardrop trailers tend to have lighting and other electrical power supplied by a storage battery, although some have mains power hookups like regular travel trailers.
It was electrically powered, originally by a large storage battery fed by petrol-driven generators housed in the engine room beneath the east approach span.
Since most diesel locomotives are diesel-electric, they have all the components of a series hybrid transmission except the storage battery, making this a relatively simple prospect.
The slim home storage battery system looks similar to a heat pump outdoor unit and is a low-maintenance, standalone unit that can be installed inside or outside the home.
