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DC fast charging not as damaging to EV batteries as expected

As convenient as DC fast charging is, there have been lots of warnings that repeated dumping of so many electrons into an electric vehicle's battery pack in such a short time would reduce the battery's life. While everyone agrees that DC fast charging does have some effect on battery life, it may not be as bad as previously expected. Over on SimanaitisSays, Dennis Simanaitis, writes about a recent presentation by Matt Shirk of the Idaho National Laboratory (INL) called DC Fast, Wireless, And Conductive Charging Evaluation Projects (PDF) that describes an ongoing test of four 2012 Nissan Leaf EVs that are being charged in two pairs of two. One pair only recharges from 50-kW DC fast chargers, which the other two sip from 3.3-kW Level 2 chargers exclusively. Otherwise, the cars are operated pretty much the same: climate is automatically set to 72 degrees, are driven on public roads around Phoenix, AZ and have the same set of dedicated drivers is rotated through the four cars. "Degradation depends more on the miles traveled than on the nature of recharging." What's most interesting are the charts on page seven of Shirk's presentation (click the image above to enlarge), which show the energy capacity of each of the four vehicles. When they were new, the four batteries were each tested to measure their energy capacity and given a 0 capacity loss baseline. They were then tested at 10,000, 20,000, 30,000 and 40,000 miles, and at each point, the DC-only EVs had roughly the same amount of battery loss as the Level 2 test subjects. The DC cars did lose a bit more at each test, but only around a 25-percent overall loss after 40k, compared to 23 percent for the Level 2 cars. Simanaitis' takeaway is that, "INL data suggest that the amount of degradation depends more on the miles traveled than on the nature of recharging." The tests are part of the INLs' Advanced Vehicle Testing Activity work and a final report is forthcoming. These initial numbers from IPL do mesh with other research into DC fast charging, though. Mitsubishi said daily fast charging wouldn't really hurt the battery in the i-MiEV and MIT tests of a Fisker Karma battery showed just 10-percent loss over 1,500 rapid charge-discharge cycles.

Renault's planned luxury sub-brand gets reconsidered

Renault believes there's enough Alpine love to restart that brand with its own model almost immediately. The launch of the Initiale Paris luxury brand it's been mulling, on the other hand, will be more restrained: a report in Autocar says that instead of launching with a first model based on the Mercedes E-Class architecture, Renault is going to introduce an Initiale Paris trim line on the new Clio and Espace. More accurately, that should be 're-introduce and aggressively market,' since Renault has used an Initiale Paris trim over the years since it introduced the concept car (pictured) in 1995, even as recently as the current-generation Laguna Coupe.
Other models will be added after the Clio and Espace, and when Renault can assess what kind of future the trim has, it will decide on the launch of a subsidiary brand. Company CEO Carlos Tavares said we shouldn't hang around waiting for a decision, though, declaring that establishing such a brand - if it even comes to that - "will be a job for at least my successor to worry about, not me."

Recharge Wrap-up: Nissan earns Energy Star award, ethanol production forecasts adjusted

The US Energy Information Administration has adjusted its ethanol production forecasts. It predicts an average of 944,000 barrels per day for 2015. That number is up from 2014 production levels of 935,000 barrels per day, but it is lower than last month's projection for 2015, which was 947,000 barrels per day. The EIA forecasts 937,000 barrels per day in 2016, down from its prior forecast of 942,000 barrels. Biodiesel production averaged 83,000 barrels per day last year, with projections of 82,000 for 2015, and 84,000 for 2016. Read more from Ethanol Producer Magazine. Boston Mayor Martin J. Walsh supports the proposed Diesel and Vehicular Emissions Ordinance. The ordinance, filed by City Councilor Stephen Murphy, would require emissions control retrofitting of all pre-2007 vehicles belonging to the City of Boston, as well as those of any contractors it hires. The ordinance also seeks to create a simple city-level standard of enforcing the state's anti-idling laws. "The asthma rate in Boston's neighborhoods continues to climb," says Councilor Murphy. "By further tightening air quality standards, as this ordinance does, we will make Boston's neighborhoods healthier." Read more at DieselNet. The Michigan Blue Economy report profiles Ford for its water-saving sustainability efforts. The report notes that Ford reduced its water use by 61 percent, or 10 billion gallons, from 2000 to 2013 by "cutting the water used in everything from cooling towers to paint operations." As part of its Global Water Management Initiative, Ford has decreased its total water use at its facilities worldwide from 64 million cubic meters per year to 25 million cubic meters. Read more from Ford, or at the Michigan Blue Economy website. The EPA has named Nissan an Energy Star Partner of the Year for the fourth year in a row. The automaker received the Sustained Excellence Award for its efforts to reduce energy use and greenhouse gas emissions in its operations. Nissan reduced the amount of energy used to build vehicles by 13 percent in 2014. Energy reduction efforts include switching to LED lighting and developing an environmentally friendly paint process. Nissan also works with schools in Tennessee and Mississippi to help them reduce energy usage. "Since this initiative began in 2012, we've helped about 30 schools make the esteemed Energy Star certification list," says Nissan's John Martin. Read more in the press release below.