Anonymous
Anonymous asked in EnvironmentAlternative Fuel Vehicles · 1 decade ago

A few questions about the electric car?

How much would it increase your energy use(power bill) to charge it? And how often does it require charging?

6 Answers

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  • Ron B
    Lv 6
    1 decade ago
    Favorite Answer

    I recently converted an 88 Mitsubishi pickup from gas to electric. It can go 40 miles on a charge and requires 20kwh to recharge. My electricity rate is .095 per kwh, which costs me $1.90 per charge. I can drive to work and back 2 days before needing to recharge. If I recharge 3 times a week, it cost me $22.80 a month. You can see the truck at www.evalbum.com/2340

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  • 1 decade ago

    Depends on the car, type of batteries, type of terrain you are driving on (hills vs. flat) etc. The best bet if you don't want to increase your electric bill while charging an electric car is to have solar panels. Most people drive the car during the day and park it while at work/school. So they charge it at night during off-peak hours so the rates are different.

    Typically, cheaper than gas, however how is your electricity being generated? Coal plant, nuclear? Lot's more questions, no simple answer. So far you can get the best range from Lithium Ion batteries. No memory issues either, but they cost more. The Chevy Volt will be such vehicle. They have some figures on their web site that show how it will be cheaper than gas...

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  • Nata T
    Lv 6
    1 decade ago

    the chevy volt requires 8.8 Kw-hrs to recharge. That can cost between $1.00 to $3.50. It can then go 30 to 40 miles. That means the best you could do is $.03 per mile and as high as $.12/mile. SO in a lot of areas, that elec car will cost more than a high mileage (35 mpg) car with $2.50 gasoline/diesel. Within the next 2 years, the government will add a road repair tax to electricity used to run cars. That tax will add $.015 per mile.

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  • 1 decade ago

    Obviously it depends how much you drive it. Electric cars cost about 2-3 cents per mile to recharge. If you compare that to a gas car, a 30 mpg car costs 10 cents per mile (5 times more) to refuel if gas is $3/gallon.

    Say you drive your electric car 1,000 miles per month. At 2.5 cents per mile, that's $25 per month. Compare that to the monthly gasoline bill of $125 in the same 30 mpg car example.

    How often it requires charging depends on the car. Generally they have a range of about 100 miles per charge with current technology. Some have longer range, but are very expensive. There's also the Chevy Volt coming out at the end of this year which has a 40 mile all electric range, but then runs in hybrid mode after that.

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  • ?
    Lv 7
    1 decade ago

    Your question has too many variables to answer specifically so I have to use tables, generalities and an example so I am sorry if it is a bit long:

    1. The increase in your electric bill is going to depend upon your present cost, how it is billed and your increase in demand.

    2. To some extent the period between charges will depend upon the capacity of the onboard storage and the demand upon the vehicle.

    Because both questions depend upon your increase in demand that is kinda central. If you demand a lot from your vehicle often, inefficiently (hard) and or for long distances you will be using more power. We have to assume that the same would be true no matter what kind of vehicle you would drive. In a fair world this factor might then be negated out as depending upon your driving and not the vehicle. But you asked specifically for the increase in the power bill without asking about the corresponding decrease in the gasoline bill. As an electric vehicle is far more efficient and costs of electricity and gasoline tend to approximate each other ( 1 ) an electric vehicle will be cheaper to operate. A high demand will have the same percentage of savings as a low demand but the dollar amount will be more.

    Some electric vehicles are going to be more efficient than others. "The Roadster's motor efficiency, battery-to-wheel, is 92% on average and 85% at peak power. For comparison, internal combustion engine has a tank-to-wheel efficiency of about 15%": http://www.absoluteastronomy.com/topics/Tesla_Road... It is probably not fair to use the Roadster as an example of efficiency because it is a performance car. Although the record on a full charge is 313 miles: http://www.pcauthority.com.au/News/159181,tesla-br... and http://blogs.cars.com/kickingtires/2009/10/tesla-r...

    EPA lists the range as 245miles but owners who perhaps can't resist feeling a little acceleration report getting an average range of about 160 miles. It is not your average commuter car but let's strike a balance and lets say this vehicle has a range of 200 miles. We also know that the battery capacity is 53 KWh. But there is a bit of a charging inefficiency that has to be taken into account on your home bill. Charging with a 70 amp 240 volt setup should take place in 3.5 hours (240 x 70 x 3.5 = 58.8 KWh charging required. The "average" driver in the US goes about 12000 miles. This amounts to about (12000 / 200 ) 60 charges a year. Or about 5 charges a month.

    1a Costs throughout the world for electricity vary. In the US average costs can be found on this table: http://www.eia.doe.gov/cneaf/electricity/epm/table... Average US residential as of 10/09 was $.1176 per KWh. Electric bills have many parts. There is often a base charge just for service. Additionally there is a charge for usage at the rate per KWh. There may be surcharges and credits. There may be a high usage fee or rate. And there may be an off peak use rate. And the rates may vary seasonally. Time of use rates for off peak usage may be most important if it is available in your area. This is for heavy electrical users who can schedule their usage for off peak times (charging at night) Off peak rates may be as much as 6 times lower than daytime usage. 1/2 might be more common.

    2b Once you know your demand and the capacity of the onboard storage you will be able to determine how often you need to charge the vehicle. But you have to keep in mind that a vehicle like the Aptera 10kWh of storage) might be charged less than a vehicle with a higher capacity if it has significantly better mileage (Aptera claims 340 mpg equivalent http://aptera2e.org/aptera-2e-specs/ ) Using the Tesla example above the charging would have to be done about once every 5 to 6 days.

    Assuming a flat rate using the national US average with no breaks or surcharges (11.76 cents / KWh) each Tesla Roadster 58.8 KWh charge would cost (58.8 x $.1176) $6.88 allowing the vehicle to go around 200 miles. This would amount to about ($6.88 x 5 ) $34.40 per month extra or about (34.4 x 12) $412.80 per year for 12,000 miles of fuel for this performance vehicle. 2

    Of course if you had a photovoltaic array sufficiently large enough you would not be paying for the electrical usage by the month.

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    Source(s): 1 The gasoline gallon equivilent of electricity is 33.4 KWh or at the national average (33.4 x .1176) = $3.93 for the electricity: http://en.wikipedia.org/wiki/Gasoline_gallon_equiv... 2 For reference an average fueled vehicle gas mileage is around 20 miles to a gallon. This produces about 20# of CO2 and other pollutants and costs around $3.00 / gallon or about $1800.00 and 600# of pollutants per year. Maintenance costs for electric vehicles are also far less then ICE vehicles.
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  • 1 decade ago

    a) massively and B) several times a day if you use it a lot twice a day if you commute and you don't have too far to go

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