Diesel engines strength, reliability, and efficiency also make them a candidate to run the next generation of clean, efficient cars. The fuel cell is not a new technology, but it s development in terms of future automotive use is still in it s infancy. Of all the alternatives, the fuel-cell engine is seen as having the best chance of competing with the internal combustion engine. A fuel cell has been described as electrolysis in reverse. Instead of passing electricity through an electrolyte to cause a chemical change, fuel is used to cause a chemical change inside the fuel cell.
Electricity is produced, without combustion, and is used to power the vehicle.
Energy from the gas engine is used to charge the battery. Regulator acceptance of a Hybrid as an Ultra Low Emission Vehicle, or even as a Zero Emission Vehicle, is possible. Current resistance to such acceptance is related to the potential for deterioration of the Hybrid engine with the accumulation of time and mileage. Rugged and durable systems will be needed to provide credibility to a claim of long life with low emissions. It is clear that implementation of low-emission standards should have a positive, dramatic impact on air quality in Southern California.