My Biodiversity Project

countrygirl92

,United States

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A hybrid vehicle is any type of vehicle that combines two or more sources of power. There are all types of hybrids. Locomotives on trains are diesel-electric hybrids. Some cities like Elk Grove, California, and Seattle, Washington, have buses that are hybrids. In Seattle they get electric power from overhead wires or they can run on diesel when there are no wires. In Elk Grove, just south of Sacramento, most of the E-Tran bus fleet use electric motors for very low speeds, and when the vehicle is stopped the gasoline motor shuts off. Ships on the ocean are hybrids, burning oil to run generators that power huge electric motors. Submarines are also hybrid vehicles, most being nuclear-electric. The "newest" kind of hybrid is the gasoline-electric hybrid automobile. There are two forms of hybrid cars. The first is called a "parallel hybrid." It has a small internal combustion engine. It also has batteries that power an electric motor. Both the engine and the electric motor can power the vehicle's transmission and wheels. The second is called a "series hybrid." The gasoline engine runs a small on-board generator to produce electricity. The generator can either charge batteries or power an electric motor that drives the transmission. The gasoline engine never directly powers the vehicle.

The State of New York is buying two hybrid electric school buses through a unique purchasing program. The buses will be powered by Enova Systems' post-transmission 80-kilowatt hybrid drive system. Financial support for the project is being provided by a consortium of energy agencies, school districts and transportation provider’s throught the United States. There are almost 50,000 school buses in the state of New York and energy groups hope to encourage more energy efficient transportation throughout the system.