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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.

Before next-gen arrives, Nissan Leaf may get 120-mile battery

As Nissan prepares to unveil its next-generation Leaf electric vehicle, the Japanese automaker may come out with an "interim" version of sorts that could spur lagging sales of the model in the US. So says Automotive News, which reports from a person familiar with the process who wasn't identified that Nissan soon may start selling a Leaf with a 30-kilowatt-hour battery, up from the current 24 kWh version. It could arrive as soon as next month. Indeed, Nissan's temporary solution may be to provide range-hungry drivers with a single-charge range of 100 to 120 miles. Sure, that doesn't quite match up with the distance a gas-powered vehicle can go on a full tank, but it would be an notable upgrade from the current single-charge range of 84 miles for the Leaf. Word first got out about the Leaf possibly adding a 30-kWh battery in late May. Nissan's contending with falling Leaf sales in the US that may be caused by both the expiration of some plug-in vehicle credits as well as the prospect of a glut of used Leafs back on the market as three-year leases run out. Through the first half of the year, Nissan sold 9,816 Leaf vehicles in the US, a 23-percent drop from a year ago. Nissan CEO Carlos Ghosn said in a June 23 shareholders meeting that the company can improve battery technology enough to put an electric vehicle's single-charge range on par with the distance a conventional car can go on a full tank of gas. Related Videos:

Nissan gets it on with the loud "Karaok-e" van concept

With a minivan, you can pack it with a half dozen friends to shuttle them to a big party. But that involves some boring time in traffic. With the Nissan Townstar Karaok-e you can skip that boring step because the van is the party. That’s the idea behind Nissan's modified Townstar Evalia is a one-off project recently shown in Europe. ItÂ’s an exercise that transforms the van into a mobile karaoke lounge. The bulk of the modifications are in the rear of the van. A 32-inch video monitor for graphics and lyrics is the centerpiece along with the exotic sound system. There are also fancy lights in the ceiling and the cabinetry, and they're synchronized the to the beat of the music. There's no mention in the press release if the van comes with a “donÂ’t dance while driving” warning. This all-electric seven-seat Townstar Evalia—which Nissan rather cosmically claims is intended to inspire “well-being and happiness”—further features a number of apps that allows passengers to show off their vocal chops, record their performances, and share them on social media platforms. The brand hasnÂ’t ignored the exterior, which features a juicy wrap enhanced by a couple of hashtags. The neon-like roof attachment would almost certainly have impressed Donna Summer. The Townstar Evalia in Europe shares close ties with the Renault Kangoo van. It comes in a long wheelbase configuration with options for five or seven seats and is available with either fully electric or gasoline powertrains. Nissan offers no hint that this particular Townstar variant might enter serious production, and we doubt that even a groundswell of interest from the public would get the company to start building them. But we bet there are limo services that might be interested, and certainly some upfitters that could put together something similar. Of course, that's as long as said customer has the will and the means.