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This map reveals the cleanest vehicles based on location

Naysayers love to point out how dirty the electricity grid mix is when it comes to charging electric vehicles. Curmudgeons are eager to jump into any conversation about EVs to enlighten the lucky listeners about how plug-in cars contribute to pollution, sometimes even throwing in a dash of climate-change denial for good measure. (Thanks, buddy. Pray, tell me more about the plight of oppressed SUV owners.) Unless someone buys an EV just because they think they're cool (which, yeah, they often are), they probably have at least a passable understanding of their environmental pros and cons. As many EV owners are already aware, location has a lot to do with any particular plug-in car's carbon footprint. Still, there's always more to know, and knowledge is not a bad thing, especially if one uses it to do the right thing. That's why this handy-dandy map from Carnegie Mellon University is so interesting. CMU researchers have compiled information about the lifecycle greenhouse gas emissions of various EVs based on where they're charged, as compared to gasoline-powered vehicles. The researchers looked at the Nissan Leaf, Chevrolet Volt, and Prius Plug-In Hybrid versus the gasoline-dependent Toyota Prius hybrid and the stop-start-equipped Mazda3 with i-ELOOP and compared grams of CO2 emitted per mile. CMU takes into account the grid mix, ambient temperature, and driving patterns. CMU takes into account the grid mix based on county, as well as ambient temperature and driving patterns in terms of miles traveled on the highway or in the city. For instance, if you drive a Nissan Leaf in urban areas of California, Texas, or Florida, your carbon footprint is lower than it would be if you were driving a standard Toyota Prius. However, if you charge your Leaf in the Midwest or the South, for the most part, you've got a larger carbon footprint than the Prius. If you live in the rural Midwest, you'd probably even be better off driving a Mazda3. Throughout the country, the Chevrolet Volt has a larger carbon footprint than the Toyota Prius, but a smaller one than the Mazda3 in a lot of urban counties in the US. The Prius and Prius Plug-In are relatively equal across the US. Having trouble keeping it straight? That's not surprising. The comparisons between plug-in and gasoline vehicles are much more nuanced than the loudest voices usually let on.

Nissan prices replacement Leaf battery at $5,500

The battery pack is the single most expensive component in a plug-in vehicle and, until now, figuring out the cost to replace one has been a bit of a mystery. Last year, Nissan tried a $100/month price for a new battery in its popular Leaf, but was loudly criticized for that attempt. Today, Nissan is changing gears with a big announcement regarding the price of a new pack for your Nissan Leaf: $5,500 to buy. With an asterisk. Nissan's Brian Brockman, writing at My Nissan Leaf, announced that Nissan Leaf replacement batteries are now available to purchase at certified Leaf dealers in the US at a suggested retail price of $5,499. These packs are the ones found in 2015 Leaf models, which are similar to the ones the Leaf has always had, just with a different, better battery chemistry. To buy a new pack, you need to give Nissan your original battery pack (which Nissan says will be recycled and has a value of $1,000) and the $5,500 "does not include tax, installation fees or an installation kit required for 2011 and 2012 vehicles." That kit costs around $225. A $100/month financing program will still be available (details will be made available later) but now it will have an end date and the driver will own the pack at the end of the payment process. All replacement packs will have the same eight-year, 100,000-mile warranty as the battery in a new Leaf. You can read Brockman's full statement below or over on My Nissan Leaf. Ever since the Leaf entered the market in late 2010, Nissan has been dealing with degrading battery issue, both as a real thing (in warm climates like Arizona) and as a worry in the mind of potential customers. Now that we know how much it'll cost to get a new pack, we can calculate that the overall cost for a new 24-kWh pack is now officially $6,500. That means the price to a customer is less than $270-per-kWh. That's quite low compared to some early estimates, right on target with others and a very big deal for EV shoppers and drivers out there. Hi all: I'm happy to be back to provide a long-awaited update on the Nissan LEAF battery replacement plan. Last year, I posted preliminary details of the program that we'd created based on early survey data, and it led to spirited discussion (and very vocal criticism). So we went back to the drawing board with your comments and the ongoing guidance of the LEAF Advisory Board.

Nissan recalls nearly 20,000 NV vans over gearshift issue

Nissan is recalling 18,800 NV vans built between December 20, 2010 and January 4, 2013. Certain 2012 and 2013 models equipped with a steering-column-mounted transmission shift levers may have been built with improperly installed shift mechanisms.
If the NV's gear selector plate lock clip wasn't installed correctly, normal road vibration could result in a gear position indicator that does not match the actual gear selection. As a result, when the driver selects 'park,' the transmission could still be in gear or in neutral, and roll away. The National Highway Traffic Safety Administration says this condition greatly increased the risk of accident and injury.
Nissan will inspect the gear selector lock clip and replace the part if necessary free of charge. Owners can expect to be notified once the recall campaign begins on April 8, 2013. Read the full recall notice below for more information.