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How to get incredibly accurate information on your EV's charging power

One would think that paying about $300 to receive a bit of bad news about electric-vehicle charging would be counterproductive. But the fine folks at Teslarati believe that truth is beauty, and they're willing to pay a little extra for the straight dope. There are always losses when taking power from the grid and shoving it into an EV's battery pack. The question is how big are these losses. Teslarati calculated digital read-outs from the dashboard of their Tesla Model S all-electric sedan and found that Tesla builds in about a nine percent efficiency loss when it comes to recharging the car. But the blog thought the Tesla couldn't know exactly what was transpiring between the wall and the battery, so it footed the bill for about $300 to install a digital submetering unit from EKM Metering. With a little calculation, Teslarati was able to figure out after a couple of recharging rounds that the efficiency loss per recharge was closer to 15 percent than nine percent. That means that, instead of paying about 48 cents on the dollar relative to filling up an economy car (factoring in the AAA average price of $3.66 per gallon), Tesla owners are paying about 52 cents on the dollar. Not much compared to paying upwards towards $100,000 for the vehicle itself, but, hey, every cent counts, right? Get all of the details here. Featured Gallery Tesla Model S View 10 Photos News Source: Teslarati Green Tesla Electric recharging

Watch the Jaws of Life tear apart a Tesla Model S

As electric vehicles become more prevalent on the roadways, first responders are facing new - and sometimes unknown - challenges when it comes to intense tasks such as the extrication of passengers trapped inside a car. Advanced Extrication, an online training resource for rescue workers, recently posted a video showing how rescuers should respond to vehicles like the Tesla Model S.
The best way to do such a video, of course, is to actually demonstrate the process, so Tesla donated a new Model S just so the Fremont Fire Department could tear it to shreds as the host explains some of the unique dangers specific to electric cars. The unfortunate demo car looks like it just came off the assembly line, meaning it is completely intact to begin with, but we wonder if it would have been more interesting to see how firefighters deal with the car's wiring and DC-DC converter (and other high voltage components) when the vehicle structure has been compromised.
Either way, the entire 37-minute video (posted below) goes in depth showing what rescuers face as they deal with a growing number of EVs. Of course, if all you want to see is the business end of the Jaws of Life going to town on the Model S' subframe, you should skip to the 27-minute mark.

California could ease environmental mandate for Tesla Gigafactory

California may ease some of its decades-old environmental mandates for potential developments in an effort to get electric-vehicle maker Tesla Motors to build its gigafactory in the Golden State. There is a certain irony in that, but given that the $5-billion factory could bring 6,500 green jobs to the state, it's not surprising. State legislators and Tesla representatives are in talks about easing some portions of the California Environment Quality Act (CEQA) for the sake of expedience, the Los Angeles Times reports, citing state Sen. Ted Gaines (R-Rocklin). Additionally, the state may give tax breaks worth about a half-billion dollars to Palo Alto-based Tesla, whose current vehicle factory is in nearby Fremont. Tesla spokeswoman Liz Jarvis-Shean, in an e-mail to AutoblogGreen, would only say that California is "in the running" for the gigafactory site, though declined to comment further on negotiations. Not everyone would be happy with such an agreement, of course. The Sierra Club is already on record as crying foul for possible CEQA exemptions. There's been no shortage of speculation on the possible location for the gigafactory, which should be open by 2017 and has been talked about landing in just about every southwestern US state except California. Most recently, Nevada and its Tahoe-Reno Industrial Center emerged as the proverbial lead dog, with its lower taxes, cheap real estate and lithium-mining capabilities. Texas, New Mexico and Arizona are also being considered for the giant plant.