Posts Tagged ‘Tesla’

Icy Temperatures Cut Electric Vehicle Range Nearly in Half

February 7th, 2019 by AAA Public Affairs

AAA research finds HVAC use in frigid temperatures causes substantial drop in electric vehicle range

ORLANDO, Fla. (Feb. 7, 2019) – As freezing temperatures plague much of the country, electric vehicle owners may experience a decrease in driving range, compounded by the use of the vehicle’s interior climate control. New research from AAA reveals that when the mercury dips to 20°F and the HVAC system is used to heat the inside of the vehicle, the average driving range is decreased by 41 percent. This means for every 100 miles of combined urban/highway driving, the range at 20°F would be reduced to 59 miles. When colder temperatures hit, AAA urges electric vehicle owners to be aware of a reduction in range and the need to charge more often to minimize the chance of being stranded by a dead battery.

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“The appeal of electric vehicles continues to grow since a greater variety of designs and options with increased range have come onto the market,” said Greg Brannon, AAA’s director of Automotive Engineering and Industry Relations. “As long as drivers understand that there are limitations when operating electric vehicles in more extreme climates, they are less likely to be caught off guard by an unexpected drop in driving range.”

Cold weather, however, is not the only factor that can influence driving range. AAA’s research also found that when outside temperatures heat up to 95°F and air-conditioning is used inside the vehicle, driving range decreases by 17 percent. Extreme temperatures certainly play a role in diminishing driving range, but the use of HVAC in these conditions – particularly the heat – has by far the greatest effect. Additionally, an electric vehicle with a compromised driving range will require charging more often, which increases the cost to operate the vehicle. For instance, AAA’s study found that the use of heat when it’s 20°F outside adds almost $25 more for every 1,000 miles when compared to the cost of combined urban and highway driving at 75°F.

AAA tested five electric vehicles, all with a minimum EPA estimated driving range of 100 miles, in partnership with the Automotive Club of Southern California’s Automotive Research Center. Real-world driving conditions were simulated using a dynamometer, essentially a treadmill for cars, in a closed testing cell where ambient temperature could be closely controlled. To determine the effects on driving range, scenarios for cold and hot weather conditions – both when using HVAC and not – were compared to those of driving with an outside temperature of 75°F.

“The research clearly shows that electric vehicles thrive in more moderate climates, except the reality is most Americans live in an area where temperature fluctuates,” said Megan McKernan, manager of Automotive Research Center. “Automakers are continually making advances to improve range, but with this information, drivers will be more aware of the impacts varying weather conditions can have on their electric vehicles.”

Previous AAA research has found that interest in electric vehicles continues to gain momentum with 20 percent of drivers saying they would likely go green when considering their next vehicle purchase. With lower-than-average ownership costs, increased driving ranges and the latest advanced safety features, AAA believes there is a strong future for electric vehicles. To help “green” car shoppers make an informed choice, AAA conducts independent, rigorous test-track evaluations of plug-in hybrids, hybrid and fuel-efficient, gas-powered vehicles and releases the results every spring in its annual Green Car Guide.

There are some precautions electric vehicle owners can take during colder and hotter times of year to help offset potential reductions in driving range. AAA recommends drivers:

  • Plan ahead. When drivers are aware of the weather conditions before heading out, they can plan for more frequent stops for charging as well as identify the location of charging stations. Drivers can access these locations through AAA’s Mobile app or TripTik Planner.
  • Make time to “pre-heat” or cool down the inside of the vehicle while still connected to the charger. This will reduce the demand on the vehicle’s battery to regulate cabin temperature at the onset of driving.
  • If possible, park the vehicle in a garage to help stabilize cabin temperature.

While electric vehicle range performs best in areas with warm weather year-round such as Florida, Hawaii and California, drivers in other parts of the country shouldn’t be discouraged. Owning an electric vehicle in these regions just requires some additional planning.

Methodology

AAA conducted primary research in partnership with the Automotive Club of Southern California’s Automotive Research Center (ARC) in Los Angeles, California to understand impacts of ambient temperature on electric vehicle driving range with and without the use of the HVAC system. The vehicles were tested using the ARC’s climate controlled test cell and state of the art chassis dynamometer and data logging equipment.

Test vehicles were selected using a pre-determined set of criteria such as availability for sale throughout the United States with a minimum EPA estimated driving range of 100 miles. One vehicle per manufacturer was tested to prevent overrepresentation of a single brand. Additional information on methodology can be found in the full report here.

About AAA

AAA provides more than 59 million members with automotive, travel, insurance and financial services through its federation of 34 motor clubs and nearly 1,100 branch offices across North America. Since 1902, the not-for-profit, fully tax-paying AAA has been a leader and advocate for safe mobility. Drivers can request roadside assistance, identify nearby gas prices, locate discounts, book a hotel or map a route via the AAA Mobile app. To join, visit AAA.com.

Tesla Model S 70D Is Top AAA Green Car

April 19th, 2016 by AAA

ErinStepp2016 AAA Green Car Guide Now Available

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ORLANDO, Fla. (April 19, 2016)The 2015 Tesla Model S 70D was named the Top AAA Green Car, the motor club announced today. The Tesla is featured with 80 other green vehicles in the 2016 AAA Green Car Guide, a comprehensive report published annually by the largest member of the AAA federation – the Automobile Club of Southern California and its Automotive Research Center.

AAA’s top three green vehicles, all electrics, were announced today. The BMW i3 and Volkswagen e-Golf SEL Premium rounded out the top three.

“The Tesla Model S 70D has a 240-mile range, room for five, excellent power and steering, and fast charge capability,” said John Nielsen, AAA’s managing director of Automotive Engineering and Repair. “Add sleek styling, great acceleration and an air of sophistication that separates it from other alternative-fueled vehicles and you see why the Model S 70D was our top vehicle this year.”

2016 AAA Top Green Car and Top 5 points:

  1. 2015 Tesla Model S 70D 92.49
  2. 2014 BMW i3 88.47
  3. 2015 Volkswagen e-Golf SEL Premium 87.09
  4. 2016 Audi A3 Sportback e-tron Premium 83.49
  5. 2015 Subaru Outback 2.5i Premium  81.96

Each of 13 evaluations was scored on 0-10 points.  Scores were totaled to determine top vehicles. The guide summarizes vehicle specifications, test scores, data and observations and lists its strengths and weaknesses. Each year, the research center tracks significant changes to a vehicle from model year to model year. If no significant changes were made to the power train in 2016, a prior model year’s results were used. Top green vehicle winners received AAA’s environmentally-friendly trophy made of sustainable bamboo and recycled aluminum.

“The research center’s evaluators divided the vehicles into six categories, crunched the numbers, and identified winners in each category,” added Nielsen. “They also recognized winners by price,” he said. “The Tesla took three awards – Best Green Car over $50,000, the large car category winner and the AAA Top Green Car. In other categories, the best green car under $30,000 was the Mazda 3S Grand Touring, and the best green pickup is the Ford F-150 Supercab Lariat.”

“Today car shoppers can choose high-quality, zero-to-low-emission vehicles in a growing selection of body type and size and price.  The AAA Green Car Guide is designed to help give consumers research-based information and tips to find the vehicle that best suits their needs and navigate the green car marketplace with confidence,” said Megan McKernan, manager of the Automotive Research Center. “AAA’s expertise along with the Automobile Club of Southern California’s nearly half-century of automotive research with alternative fuel vehicles continues to benefit AAA members and the public today.”

“Green vehicles offer motorists a way to save on energy costs,” she added.  A recent AAA member green vehicle survey found that green car issues are important across generations with millennials and non-millennials saying they’d consider buying a green vehicle because of fuel costs and environmental impact.  The majority of respondents in the AAA survey also said they are interested in a green vehicle when shopping for a new car and 82 percent stated it was important to understand green technology.

To help car buyers and enthusiasts looking for the latest information on fuel-efficient vehicles and low-emission technology, the sixth annual AAA guide reviews battery electric vehicles, compressed natural gas-powered (CNG) vehicles, clean diesels, hybrids, partial zero emission vehicles (PZEVs), and vehicles with high fuel economy. Vehicles were grouped into categories according to size, body type and three price ranges. They were scored by the Los Angeles-based Automotive Research Center in real-world evaluations (acceleration, handling, ride comfort, turning, cargo capacity, etc.). The report also contains in-depth information about green technologies, vehicle safety and advanced driver assistance systems.

Tested vehicles were selected based on emission certifications from the California Air Resources Board and U.S. EPA fuel economy ratings. Tests were performed at the Auto Club Speedway in Fontana, Calif. and on Southern California roads. The Society of Automotive Engineers (SAE), the EPA and the Automobile Club of Southern California developed the testing procedures.

The guide will be available to AAA members at no charge at select AAA branches while supplies last. More information can be found at www.AAA.com/greencar.

2016 AAA Best Green Car by Price:

Over $50,000:                    2015 Tesla Model S 70D

$30,000 to $50,000:        2014 BMW i3

Under $30,000:                 2014 Mazda 3S Grand Touring

2016 AAA Green Car Guide Category Winners:

Large car:                             Tesla Model S 70D                                          (Electric)

Midsize:                               Mercedes-Benz E250 BlueTEC 4matic       (Clean Diesel)

Compact:                             Volkswagen e-Golf SEL Premium                 (Electric)

Subcompact:                      BMW i3                                                               (Electric)

SUV/Minivan:                    Subaru Outback 2.5i Premium                     (PZEV)

Pickup Truck:                     Ford F-150 Supercab Lariat                            (Gasoline)

As North America’s largest motoring and leisure travel organization, AAA provides more than 56 million members with travel, insurance, financial and automotive-related services. Since its founding in 1902, the not-for-profit, fully tax-paying AAA has been a leader and advocate for the safety and security of all travelers. AAA clubs can be visited on the Internet at AAA.com.  Motorists can map a route, identify gas prices, find discounts, book a hotel and access AAA roadside assistance with the AAA Mobile app for iPhone, iPad and Android. Learn more at AAA.com/mobile.

Erin SteppORLANDO, Fla., (April 20, 2015) – The 2015 Tesla Model S P85D earned the top score in the 2015 AAA Green Car Guide, the motor club announced today.  The Palo Alto-based automaker’s car is featured with more than 80 other green vehicles in the 2015 AAA Green Car Guide.  The best green car value award went to the 2014 Nissan Versa SV.

To help those in the market for a green car or truck, the 160-page, comprehensive fifth annual AAA guide reviews 88 battery electric vehicles, compressed natural gas-powered (CNG) vehicles, clean diesels, hybrids, partial zero emission vehicles (PZEVs), and vehicles with high fuel economy.  These vehicles were tested and scored by the Automobile Club of Southern California’s Automotive Research Center (ARC) in 13 categories (braking, fuel economy, emissions, handling, ride comfort, etc.). The report also contains comprehensive information about green technologies from the ARC evaluators.

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“Low-emission vehicles and hybrid choices vary in quality, price and size.  The AAA Green Car Guide is one of our ongoing programs to help consumers navigate the wide-ranging green car marketplace,” said Greg Brannon, AAA’s director of Automotive Engineering.  “AAA’s expertise and history of automotive research with alternative fuel vehicles continues to benefit AAA members and the public today.”

“The center also has a long-term interest in helping motorists cut their fuel bills and clean the air,” said ARC Manager Megan McKernan. “Green vehicles offer motorists a way to reduce emissions and save fuel and, depending on the choice of green vehicle, can help motorists save cash, especially when gas prices are high,” she added.

“For the 2015 guide, the research center divided the vehicles into six car classifications and identified the winners and finalists in each category,” said McKernan. “We also recognized overall ‘Green Car’ and ‘Best Value’ winners,” she said. “The Tesla took two awards – best overall and large car category.”

In describing the top-scoring green vehicle manufacturer, which held onto the top spot from last year, McKernan said, “All evaluators rated the Tesla high for comfort and ride quality. It handled well on our slalom course, and it has the best acceleration times of all the vehicles.”

The Tesla P85D has a 253-mile range, but even with a 240-volt charger, it can take 12 hours to fully re-charge, according to McKernan.  “Despite charging time, the Model P85D was our top-scoring electric vehicle this year.”

The 2014 Nissan Versa SV tops the 2015 guide list as the best green car value when price is factored in, according to McKernan. “It’s priced under $17,000, averages about 35 miles per gallon and has a spacious interior making it an affordable fuel-sipping car,” she added.

The research center tracks significant changes to a vehicle from model year to model year. If no significant changes were made to the power train in 2015, a prior model year’s results were used. For example, staff tested a 2014 Mazda3 sedan. No significant changes were made to its powertrain in 2015, so the 2014 results were include in the 2015 AAA Green Car Guide.

Overall Top Scoring Green Cars:

  1. 2015 Tesla S P85D Performance (Electric)                                                              94.87
  2. 2015 Volkswagen e-Golf SEL Premium (Electric)                                                 85.50
  3. 2014 BMW i3 (Electric)                                                                                                   85.40
  4. 2015 Subaru Outback 2.5i Premium Partial Zero-Emissions                            83.86
  5. 2015 Volkswagen Golf TDI SE Clean Diesel                                                            80.91

 Best Value: Cost-Per-Point Scores:

  1. 2014 Nissan Versa SV  (Gasoline)                                                                             $249
  2. 2014 Nissan Versa Note SV (Gasoline)                                                                   $260
  3. 2013 Hyundai Accent GLS (Gasoline)                                                                      $269
  4. 2015 Toyota Yaris LE (Gasoline)                                                                                 $273
  5. 2014 Kia Soul+ (Gasoline)                                                                                            $276

2015 AAA Green Car Guide Category Winners:

  • Large car: Tesla Model S P85D (Electric)
  • Midsize: Audi A7 TDI Quattro Tiptronic (Clean Diesel)
  • Compact: Volkswagen e-Golf SEL Premium (Electric)
  • Subcompact: BMW i3 (Electric)
  • SUV/Minivan: Subaru Outback 2.5i Premium (PZEV)
  • Pickup Truck: Ford F-150 Supercab Lariat (Gasoline)

The ARC’s engineers and technicians – who have more than 100 years combined experience – evaluated the vehicles. Each category was scored on 0-10 points.  Scores were totaled to determine top vehicles.  Then, each vehicle’s total score was divided by its “as-tested” price to determine its cost per point for best value.  The guide lists vehicle specifications, test scores, data and observations in one-page summaries.

Tested vehicles were selected based on emission certifications from the California Air Resources Board and U.S. EPA fuel economy ratings.  Tests were performed at the Auto Club Speedway in Fontana and on Southern California roads.  Testing procedures were developed by the Society of Automotive Engineers (SAE), the EPA and the Auto Club.

The guide will be available to AAA members at no charge at AAA branches while supplies last.  It also can be downloaded on the iPad or on the AAA web site. More information can be found at www.AAA.com/greencar.

As North America’s largest motoring and leisure travel organization, AAA provides more than 55 million members with travel, insurance, financial and automotive-related services. Since its founding in 1902, the not-for-profit, fully tax-paying AAA has been a leader and advocate for the safety and security of all travelers. AAA clubs can be visited on the Internet at AAA.com.

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