L'impatto economico e ambientale dei veicoli elettrici - 2/2
impact on the grid
The next question that must be ask is whether the power supply for recharging the batteries of a million electric cars on the grid is available. The answer to this question is yes, because the charge would be done at night when electricity demand is low. As a matter of fact, there is available power to charge many millions more.
According to the U.S. Bureau of Transit Statistics for 2006 were 250,844,644 registered passenger vehicles in the U.S. , of which 135,399,945 are classified as passenger cars (excluding SUVs and pick-up). In the future, one might expect that half (68 million) than are electrical machinery and could be used for commuting, in which case the demand for more power at night to recharge them for six hours would be 136,000 MW (12kWh x 68 x 106 / 6 hours).
In 2009, the grid of the United States has transited a quantity of electricity generated amounted to 400,000 MW. The current grid could accommodate much of this additional burden. For example, if a typical load reduction was 20 percent at night without recharging electric vehicles, then you might accept the charge of 40 million electric vehicles, without reducing the power (68 million x 400 x 0.2/136). ;
If you use smart charger to allow monitoring and timing of availability offered by network operators, the load on the grid could be flattened, maximizing and streamlining the use of base load generators, making it the lowest energy costs.
emissions, the impact
Finally, the issue must be addressed if the use of electric cars leads to a reduction in emissions.
The use of electric cars in the metropolitan areas would certainly reduce emissions at the local level, which should be considered in a positive way because that is where people live and work. All emissions are transferred that is where they created the position is located in the center (which is usually remote from the metropolitan area). Transfer emissions at power plants would eliminate the unhealthy emissions of hydrocarbons, nitrogen oxides and carbon monoxide from cars to engine. The EPA (U.S. Environmental Protection Agency) stated that "the personal automobile is the biggest single polluter, whereas plus the emissions from millions of vehicles on the road."
If electric cars are recharged at night when not in use, emissions are created by a mix of power stations connected to the network at that time (coal, gas natural, nuclear, hydro, solar, wind, etc.) Only nuclear, hydroelectric, solar, and wind are free of emissions.
The solar PV can not contribute to the charging of electric cars, unless they are used for charging extra batteries during the day. This may take several battery packs that cost $ 10,000 each and many times the cost of the solar power system. This is a very high cost for the benefit of generating a value of $ 1.35 in electricity each day.
Similarly, the wind can not be invoked to charge electric cars because it is intermittent (*). You could meet with several electric car parts in your driveway waiting to be loaded riina, with only one of which is available in a single day. The cost of doing so would be prohibitive.
For grids with large-scale production of energy from hydroelectric sources such as the Bonneville Power Administration, the recharging of electric cars can be easily adapted. Hydroelectric power is reduced significantly during the night, which is exactly when you need power to recharge electric cars. This is a very good solution. It 'also very cheap poiché l'acqua in eccesso, altrimenti sprecata, sarebbe utilizzata per produrre la potenza extra durante la notte.
Per le fonti idroelettrico con minor potenza, è probabile che possano essere utilizzate al massimo in modo continuativo, ad un costo finale molto basso, ma per tale situazione, i generatori di picco possono essere generatori di fossili che hanno bisogno di operare più a lungo durante la notte. Pertanto, l'impatto delle emissioni di ricarica veicoli elettrici durante la notte è la differenza tra le emissioni supplementari presso l'impianto di alimentazione (probabilmente di gas naturale) e le emissioni delle autovetture a benzina. There is probably a net benefit of carbon emissions, but not a complete elimination of carbon emissions.
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(*) With
KiteGen solve everything the procurement of energy and pollution problems.
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Prii? Si, Prii. La Toyota ha scelto quale sarà il plirale di Prius, appunto Prii. 
thermal engine 
To celebrate 111 years of hybrid cars Porsche has decided to spendere gli ultimi 4 anni per far rinascere 'Semper Vivus ' che verrà esposta alla prossimo Salone di Ginevra, 2011 Geneva Motor Show, dal 3 al 13 Marzo. 
I Italian oil consumption in the month of January 2011 amounted to approximately 5.5 million tons , with an increase of 0.5% (+29,000 tonnes) compared to the same month of 2010. ( Nota di ME: non sono d'accordo! Nel mese di gennaio dl 2010 erano stati 5,7 milioni di tonnellate quindi i consumi sono diminuiti ). 
Rieccoci col retrofit o se preferite 'conversione'. 
"Build your dreams" or Build Your Dream, BYD stands, is the Chinese battery manufacturer that also produces electric and hybrid vehicles. 
The next question that must be ask is whether the power supply for recharging the batteries of a million electric cars on the grid is available. The answer to this question is yes, because the charge would be done at night when electricity demand is low. As a matter of fact, there is available power to charge many millions more. 
The use of electric cars in the metropolitan areas would certainly reduce emissions at the local level, which should be considered in a positive way because that is where people live and work. All emissions are transferred that is where they created the position is located in the center (which is usually remote from the metropolitan area). Transfer emissions at power plants would eliminate the unhealthy emissions of hydrocarbons, nitrogen oxides and carbon monoxide from cars to engine. The EPA (U.S. Environmental Protection Agency) stated that "the personal automobile is the biggest single polluter, whereas plus the emissions from millions of vehicles on the road." 
The Leaf can be used primarily as a second car to move to use a daily commute of 50 miles. Requires a daily supplement of 12 kWh of electricity. A typical American home uses 25 kWh per day now, so this represents about a 50 percent increase in electricity consumption. Il costo di energia elettrica varia, a seconda di dove si vive, ma se usiamo un costo medio residenziale possiamo assumere 11,3 ¢ / kWh, si ottiene un costo giornaliero di 1,35 dollari, oppure un costo mensile di circa $ 40. 
