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Recharge Wrap-up: Comparing Nissan Leaf performance by climate, natural gas iffy for trucks

A new Carnegie Mellon University study looks at the effects of regional climate variations on the Nissan Leaf. The study shows (unsurprisingly) that the ambient temperatures of different regions have effects on battery performance and the use of climate control, both of which affect range. Efficiency and grid mix determine regional differences in emissions per mile. CMU enumerated many of the differences in performance across the US. For instance, on the coldest day of the year, maximum range can be 70 miles on the Pacific Coast, while it is less than 45 miles in the Upper Midwest. These differences in efficiency can also affect adoption patterns. Read more at Green Car Congress. Battery charger manufacturer CTEK has licensed WiTricity wireless charging technology. CTEK looks to commercialize the wireless power transfer tech for use with electric vehicle batteries, making the "plug-in" aspect of EV charging unnecessary. WiTricity's charging technology stands out for its ability for distance charging via magnetic near field. "We are excited to be on the forefront of the next generation of battery charging products for consumers and industry, and look forward to leveraging WiTricity's ground-breaking technology to bring a new level of convenience and ease of use to market," says CTEK CEO Jon Lind. Wireless charging is convenient for the public, but also especially useful for emergency vehicles, which need to be ready at a moment's notice but also keep electrical systems online while the car is parked. Read more at Green Car Congress or at the WiTricity website. Switching heavy trucking fleets from diesel to natural gas could make economic sense, but the environmental benefits aren't as certain, according to a new study from UC Davis and Rice University. Certain regions - particularly California, the Great Lakes and mid-Atlantic regions - could benefit from the switch with minimal investment. "But to have an environmental advantage for reducing greenhouse gas emissions would take significant policy intervention," says Amy Myers Jaffe, executive director for Energy and Sustainability at UC Davis. This would mean stricter efficiency standards for natural gas trucks, as well as stronger regulations for methane leakage. Read more in the press release from UC Davis below.

Investigators say Mitsubishi mpg scandal was 'collective failure'

Investigators hired by Mitsubishi Motors to probe why the Japanese automaker engaged in falsifying fuel-economy figures for the past quarter-century faulted the company's "corporate culture." Specifically, there was a lack of unity between divisions, company-wide pressure to boost fuel-efficiency numbers, and an unwillingness to accept fuel-economy shortfalls, Automotive News says, citing comments made by consultants who hired by the company to investigate the problems. Challenging management authority even if it was proper to do so was also frowned upon. One of the investigators called the scandal "a collective failure." Among other suggestions, the consultants recommended that Mitsubishi's vehicle-mileage certification be independent from research and development, that there's greater transparency overall, and that there's a more thorough understanding of laws. New shareholder Nissan may also invest in retooling Mitsubishi's R&D operations, and is sending one of its former executives, Mitsuhiko Yamashita, to Mitsubishi to try to prevent any sort of repeat problems. Mitsubishi joined a list of automakers including Volkswagen, Hyundai/Kia, and Ford that have been found in recent years to either mislead with its published fuel-efficiency figures or emissions-testing procedures. A Nissan spokesman declined to comment on the Mitsubishi report, according to Automotive News. The recommendation comes less than three months after the announcement that Nissan would help rescue Mitsubishi from its fuel-economy scandal by acquiring part of the company. Nissan agreed in May to pay $2.2 billion for a 34-percent stake in Mitsubishi, and said at the time that Mitsubishi would join the Renault-Nissan Alliance. Nissan also owns 15 percent of France-based Renault. That announcement came right after Mitsubishi's admission that it may have falsified fuel-economy data for every one of its vehicles made in Japan dating back to 1991. Related Video: News Source: Automotive NewsImage Credit: Tomohiro Ohsumi/Getty Images Green Mitsubishi Nissan Fuel Efficiency scandal diesel scandal

Tesla Model S drivers put way more miles on their cars than Nissan Leaf owners do (we think)

Just a few weeks ago, Nissan announced that its customers have driven over a billion electric kilometers in the four years that the world's best-selling EV has been on the road. That heady milestone means, Nissan says, that the Leaf has saved 180 million kilograms of CO2 emissions around the world. The billion kilometers have been split among the 147,000 Leaf vehicles that Nissan has sold. Well, not really, since the billion kilometer total only counts Leaf EVs registered with CarWings, which Nissan says is 54 percent of the total sales. That's 79,380 cars and results in an average – and it's only a rough average, but what're you gonna do? – of 12,597 miles per car. Let's keep that number in mind for a minute. Today, despite going on sale a year and a half after the Leaf (June 2012 versus late 2010), Tesla Motors Tweeted today that Model S drivers have hit the same numerical milestone. Tesla didn't say how many of its vehicles were involved in its count, but we think that Tesla has sold at least 50,000 Model S electric vehicles globally (about 2,650 in 2012, 22,450 in 2013, 21,821 for 2014 through the end of September), so we'll estimate a rough average for each Model S of 20,000 miles. So, in case anyone ever needs numeric proof that a Model S is more fun to drive than a Leaf – that's the only possible thing this could mean, right? *ahem, longer range* – now you've got the data. {C} This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Nissan says "thanks a billion" to LEAF owners Nissan LEAF drivers registered on CarWings telematics have collectively driven ONE BILLION KILOMETERS worldwide* Globally, Nissan LEAF drivers have saved more than 180 MILLION kilograms of CO2 emissions* Over 147,000 Nissan LEAF vehicles have been sold globally to date ROLLE, Switzerland – Nissan has revealed that owners of the LEAF, its 100% electric car, have collectively recorded an impressive one billion kilometers on the CarWings telematics system worldwide – saving over 180 million kilograms of CO2 emissions* in the process. This incredible achievement comes almost four years since the LEAF was launched in 2010 as one of the first mass-market, pure-electric vehicles. It is now the best-selling electric vehicle in history, with over 147,000 LEAF vehicles sold globally to date, 31,000 of which have been sold in Europe.