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Figuring out exactly how much it costs to charge Tesla Model S

Is the Tesla Model S an electricity guzzler? One driver trying to answer that question says it does gobble down more juice than previously thought, but it's not time to make Hummer jokes just yet. First, the goal: Tesla's claims that properly set up home-charging stations can get about a 91-percent efficiency rate. Rob M. from Teslarati has been diligently tracking electricity used by his home charging station – made up of a NEMA 14-50 outlet that was professionally installed and Tesla's Universal Mobile Connector (UMC) – since June, as we reported here. The results for the month that ended July 21 revealed that the Model S was taking in about 82 percent of the electricity it was pulling from the system, indicating an 18-percent loss of electricity. Most EVs are thought to charge at an 88 to 90-percent efficiency rate. The downside to his results? About $26 more per month in electricity costs than previously estimated on about 2,400 miles worth of driving. There is a positive upshot, though: his monthly fuel savings totaled about $334 compared to driving an internal combustion engine vehicle. These early results are intriguing, and make us wonder... Is anyone else checking in on their Model S charging efficiency?

Panasonic has an idea to be Tesla's one and only gigafactory partner

Samsung? Who's Samsung? That's what Panasonic is asking as the electronics conglomerate makes it clear it is looking to secure its position in Tesla Motors' plans to build a huge car-battery factory over the next three years. Panasonic is now saying it expects to be the only battery manufacturer partner for Tesla's so-called gigafactory, Reuters says, citing comments from Panasonic senior executive Yoshio Ito. Ito says his company has been in talks with Tesla about its construction plans, and while Samsung started supplying Tesla's batteries last year, Panasonic, which makes Tesla's lithium-ion cells, is looking for solo billing once the $5-billion factory goes live in 2017. All Tesla CEO Elon Musk has said so far is that he expects Panasonic to be the main partner in the gigafactory. Tesla, when contacted by AutoblogGreen, declined to comment on Ito's comments. Last fall, Panasonic and Tesla reached an agreement in which Panasonic would increase its supply of battery cells to Tesla by a factor of 10 within the next three years, and Panasonic says its already doubled its battery-production investment this year largely because of the California automaker. That said, Panasonic president Kazuhiro Tsuga said in March that there was significant risk involved in any investment in the gigafactory and hadn't committed to any investment as of that time. So Ito's comments may merely be a negotiation ploy. Tesla is looking for partners to shoulder about $3 billion of the $5 billion gigafactory cost. Earlier this month, Lux Research estimated that Panasonic has a 39-percent global market share for plug-in and hybrid batteries. NEC has 27 percent and LG Chem has nine percent.

Tesla layoffs, new safety mandates, and a bumper crop of V12s! | Autoblog Podcast #830

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Byron Hurd for a gasoline-powered installment. They lead off by diving into the Tesla layoff news from this week before leaving electrification behind for a bit to talk about not one, but two production V12 unveilings. This isn't a drill, folks; Aston Martin and Ferrari are both committed. After that, they touch on the U.S. government announcement that it would mandate automatic emergency braking systems starting in 2029. They finish up the news segment with a chat about Fisker. Poor, poor Fisker. From there, it's on to the road tests. The Autoblog team has been testing out some EVs and both Byron and Greg had some thoughts to share, plus we get a final update from Byron on the long-term Subaru WRX and some notes from both drivers about the updated Range Rover Evoque.  Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #830 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown News Axing Tesla's Supercharger department raises worries as other automakers join network Fisker tells its staff that four companies are interested in buying it Ferrari confirms the 812 Superfast's successor will keep the V12 alive Aston Martin isn't done with V12s, it redesigns the engine U.S. to require automatic emergency braking on new vehicles What we've been driving 2024 Hyundai Ioniq 6 2021 Tesla Model Y 2024 Range Rover Evoque Long-term Subaru WRX Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related video: Government/Legal Green Podcasts Aston Martin Ferrari Hyundai Land Rover Subaru Tesla Convertible Coupe Crossover SUV Electric Performance Sedan