The Chevy Volt costs $40,000. It has 35 miles electric range. Is this economical, is it green? Let’s look at the numbers. First understand that money is energy. Money is a claim on energy, which can take the form of electricity, oil, and/ or human labor. That’s money/energy equivalence.
The EPA says the Volt in electric mode gets the equivalent of 93 mpg. The Toyota Prius hybrid gets 50 mpg on gas.
The middle of the line Prius is about $24,000. The Volt starts at $40,000. Does it make sense to pay an extra $16,000 premium for the volt, for your wallet or for reducing fossil fuel consumption?
We’ll assume conventional gasoline is $4.00 a gallon. We’ll also assume the Volt is only driven in electric mode and that an equivalent amount of energy from your power company to that of a gallon of gas is $3.75 (this assumes 11¢ per kWh times 34 kWh). [there are about 34 kWh in a gallon of gasoline, see MPGe ].
We will assume both vehicles are driven 12,000 miles a year, a reasonable assumption given the Volts electric range.
The Prius gets you 50 mpg. At $4/gal that’s 8¢ a mile. The volt gets you 93 mpg. That’s 4¢ a mile, a savings of 4¢ a mile.
Ok, now we’re ready to crunch the numbers. 4¢ x 12,000 miles equals a savings of $480 a year. Now how long will it take to make up that $16,000 premium you paid? 33 years. Oops! If you drive the Volt for 10 years you will only save $4,800 on energy. That puts you over $11,000 in the hole.
Not economical.
Now let’s assume the electricity you use to charge the volt is ‘green’/alternative, all hydroelectric, solar, wind or (if your generous) nuclear. Are you helping the environment and/or reducing our dependence on fossil fuels? What do you think happens to that $11,000 premium you paid? It is additional money spent to make the vehicle. This means extra energy and manpower and ultimately a good (though indeterminate) chunk of that extra money is spent on the crude oil used to make the car! You must factor in the cost of a vehicle and consider the energy associated with that cost to get the complete picture.
Verdict: EcoFAIL! EnergyFAIL! WalletFAIL!
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