driving (see below). I am not interested in dissuading anybody from buying any kind of car, Leaf, Volt or otherwise. Just interested in providing accurate info applicable to people's actual likely driving experiences.
regarding driving range, driving conditions make considerable difference.
http://www.caranddriver.com/reviews/car/10q4/2011_nissan_leaf_sl-short_take_road_test"And state-of-charge is always a concern.
On an 88-degree afternoon, the Leaf predicted a 24-mile drop in range if we were to use the climate-control system. We managed 97 MPGe (miles per gallon equivalent), or 2.9 miles per kilowatt-hour, with the air conditioning off during a 19-mile run around town that included a short highway stretch. Based on our time with the Leaf,
we expect it to comfortably do about 70 miles on a charge."
....okay, so if you are driving in 88 degree weather, with A/C on, Car & Driver testers got 70 miles on a charge. That sounds pretty good for most people's commutes. For winter urban driving Nissan says figure on 62 miles(see below). Note, if you get 70 miles per charge then the charge time is 7 hrs (240 Volt) per 70 miles or 3.5 hrs for 35 miles (or 17.5 miles round trip). As a commuter car 17.5 miles round trip sounds adequate for most people.
NOte that I observed that people in evaluating the Leaf are probably NOT going to use their average commute time as a basis for evaluating the adequacy of the Leaf's range but their likely maximum range needed..as when on vacation or for that drive to grandma's.
NOTe I also observed that this does NOT apply to those who will be considering the Leaf as their second car. I also noted that that appears to be the way you would look at the Leaf as you seem to be referring to the Leaf's features with reference to your wife's preferences. I suspect a large part of the Leaf buyers will be planning to use it as their second car. In this application, average commute time may be appropriate as a basis for evaluating the adequacy of the Leaf's range.
.....But remember what I noted above about average commute times and "bad" commute days as discussed in article referenced above. 'Bad' commute days can be twice as long, time-wise, as normal days. Sitting in traffic in hot weather will still drain your battery although not as badly as driving at say 45 mph would. But their would be extra draw on the battery so maybe a commute of twice as long (time wise) would translate into a battery drain of 1.3- 1.45 the normal commute. so a round trip commute of 35 miles might become more like a commute of 49 miles, requiring a charge time of almost 5 hrs. This is not a problem when charging at home but what about those public charging stations?
Public charging stations - number of cars accomodated & wait times If you are considering using a public charging station just the time to charge YOUR car is NOT the only consideration. There still is the question of
how many cars can be accomodated by a charging station and the possible wait-till- charge time involved. IF there are two cars ahead of you, you might not get to START charging for 5 to 7.4 hours or more (or perhaps 10 hrs if there are any full charges ahead of you). Then, if you leave your car there as apparently you would (maybe in west Texas you can do that, prairie dogs and jackrabbits can't steal cars),
is somebody coming with you to give you a lift back, or are you going to ride a bike back (oh, scuuuze me, ride a horse back, ha-ha-ha-heh-uhm.:shrug:). These are some things to consider when charging at a public charging station (as they become available).
West Texas, will somebody steal my car here?...
http://www.nissanusa.com/leaf-electric-car/range-disclaimer/index#/leaf-electric-car/range-disclaimer/index">Here is the estimates for different kinds of driving conditions from Nissan:
your Nissan LEAF™ is built to go 100 miles on a single charge*how far you'll go will depend on a number of variables
DISCLAIMER *Based upon EPA LA4 test cycle conducted in laboratory tests. See
http://www.fueleconomy.gov/feg/fe_test_schedules.shtml . Gradual loss of capacity in battery will result with time and use. Actual range will vary depending upon driving/charging habits, speed, conditions, weather, temperature, and battery age.
depending on the conditions, when your battery is new your range may vary anywhere from 138 - 62 miles. range is most affected by:Climate control – the more extreme the temperature is outside, the more energy used to heat or cool the cabin.
Speed – higher speeds require much more energy to overcome air resistance.
Driving style – smooth acceleration and deceleration will extend range while aggressive acceleration and deceleration will decrease range.
Cargo and topography – heavy cargo and driving up steep long inclines will reduce range.
there are an infinite number of range scenarios*, based on many variables. here are just a few, starting with the EPA LA4 test cycle:EPA LA4 test cycle: 100 milesThe Nissan LEAF has been tested under the EPA Urban Dynamometer Driving Schedule, a laboratory test commonly called the LA4 test cycle, which represents city driving conditions. Top speed is 56.7 mph and average speed is 19.59 mph. Ambient temperature can vary from 68 - 86 degrees. Climate control is off. The Nissan LEAF easily achieved 100 miles.
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Ideal driving conditions: 138 milesSpeed: Constant 38 mph
Temperature: 68 degrees
Climate control: Off
Driving on a flat road at a constant 38 mph means less air resistance, and therefore less energy use. And at 68 degrees, there's no need for climate control, extending the range even further. The result: a range boost up to 138 miles.
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Suburban driving on a nice day: 105 miles Speed: Average 24 mph
Temperature: 72 degrees
Climate control: Off
The average speed in this scenario is 24 mph; common when commuting and running errands. The ambient temperature is 72 degrees and the climate control is off. Not using the air conditioner and driving at slower speeds mean less energy use and a little extra range.
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Highway driving in the summer: 70 miles Speed: Average 55 mph
Temperature: 95 degrees
Climate control: On
Averaging 55 mph on the highway, in 95 degree weather, with the air conditioning on high may produce range figures like this. Higher speeds require more energy to overcome air resistance. Running the air conditioner means energy that could be used to increase range instead goes to cooling the car.
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Cross-town commute on a hot day: 68 miles Speed: Average 49 mph
Temperature: 110 degrees (sounds like Dallas in the summer!_JW)
Climate control: On
Driving from a rural area into the city at an average 49 mph with the a/c on high may produce this range. Under these conditions, climate control combined with higher-speed driving produces increased energy consumption, hence the effect on range.
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Winter, urban stop-and-go, traffic jam: 62 miles Speed: Average 15 mph
Temperature: 14 degrees
Climate control: On
Though the average speed is only 15 mph with stop-and-go traffic, the 14-degree temperature means the heater is doing a lot of work so you spend considerable time and energy heating your car rather than moving forward. Despite these conditions, it would still take more than 4 hours to run out of charge!
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DISCLAIMER *All above scenarios based on new battery life. Estimated range based upon specific variables studied through computer simulations.