Denza NEV – La voiture électrique de Daimler et BYD exposée à Pékin

Posté le 01-06-2012 par BILAL depuis son IPhone

The problem about caborn does not concern the total mix of power sources (hydroelectric, nuclear, oil, gas, coal, wind, solar, etc.). The question should be: which power source is increased when I plug in my car (or anything else). Utilities automatically increase or decrease production certain plants as the demand rises and falls. They use the sources of cheaper or no fuel cost first. Therefore at any time the solar and wind power sources are run fully (no fuel cost). Nuclear is also used all the time possible (low fuel cost). Next is newer, more efficient fossil plants. Last is the older, least efficient fossil plants. In most areas of the US, that is coal. In those areas, any increase in power demand will be met by increasing the load of older, less efficient coal plants.Suppose the mix of power in your area is nuclear, hydro, wind, and solar, with just a little coal. Still, when you plug in your car or turn on your electric dryer the increase in power generation comes from coal burning plants. When you plug in your car, you increase the burning of coal. So an electric car is a coal burning car.