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Sun and wind could power Tesla Gigafactory for EV batteries in Nevada

Next week is Tesla Gigafactory week. The California automaker has a major announcement planned, and it's all about its intention to build a battery factory so large, the company is pulling out the giga prefix. At some point in the next seven days, we expect to hear where Tesla will build the plant, who it will partner with, how it will pay for it and lots of other details. The production volume is expected to be at least 30 gigawatt-hours-worth per year. The Gigafactory will take in the raw materials for lithium batteries and put out finished packs, not only for the electric vehicles made by Tesla and its automotive customers, but also for massive amounts of renewable energy storage – that's a niche the company plans to begin to occupy sometime early next year with residential-sized products. The production volume is expected to be at least 30 gigawatt-hours-worth per year. That's more storage than all the lithium battery factories in the world combined produce now. Color us impressed. Now, you might be thinking, "Is it really necessary to go that big at this point in time?" In a word: yes. Tesla CEO Elon Musk has said its upcoming, more-affordable vehicle – widely expected to be called the Model E – will wear a $35,000 price tag and boast a battery big enough to take it 200 miles on a charge. To achieve this, the cost of the cells needs to come down dramatically, and so it's no coincidence that the time frame for the new facility will parallel that of this car. According to Musk, the benefits from the economies of scale will see a cost drop between 30 and 40 percent. Of course, historically high prices are one of the main reasons why battery storage has not been widely used in the renewable energy sector, so this development could help drive more demand for cleaner, affordable energy, which, in turn, will drive demand for more storage. That's the kind of vicious cycle we like to see. Musk said the Gigafactory will be "heavily powered" by wind and solar energy. Speaking of renewables, that is where the Gigafactory will get much of its needed energy. During the call with financial analysts that accompanied the release of its 2013 fourth quarter earnings report, Musk mentioned that the new plant will be "heavily powered" by wind and solar energy, and will also use older Tesla packs for storage. These will help deflect the traditional arguments against wind and solar, that the sun doesn't shine at night and the wind doesn't always blow.

Tesla Stock Hits All-Time High Hours Before Fifth Car Fire Reported

A Tesla Model S caught fire while parked in its owner's garage in Toronto earlier this month. This marks the fifth car fire in five months for the California automaker, according to CNBC. On Feb. 1, a four-month-old Model S was parked and unplugged in a garage when its owner heard the fire alarm go off. The car was quickly engulfed in flames. The fire damaged the garage and nearly destroyed another vehicle. Toronto Fire Service tells CNBC the engine area was the source of the blaze. Tesla is investigating the fire, and issued a statement to Business Insider reminding consumers that every automotive company expects to deal with car fires at some point and that gasoline cars experience higher car fires than Tesla on average. There have been no deaths due to the fires. Five Teslas have caught fire in the last five months, two were started when their battery packs were punctured by debris in the road. A ho-hum third-quarter in 2013 and news of the fires caused the stock price to dwindle to $120 a share. The company recently reclaimed much of that ground, surging for the first time past $200 a share just this week, Autoblog Green reported. Related: Tesla Model S Test Drive | TRANSLOGIC Related Gallery The Top Ten Best Green Cars -- And 3 Clunkers View 14 Photos Tesla fire engine stock stocks

Silly dyno, that Tesla doesn't have 2,000 lb-ft of torque

Torque. Lots of torque, right off the line. That one benefit presented by an electric motor over its internal-combustion sibling, and the Tesla Model S delivers it in spades. 443 spades, to be precise, or about as much as a Bentley Continental GT or McLaren 12C. But when one Emmanuel Chang put his electric sedan on a dyno up (way up north) in Edmonton, Alberta, it registered a whopping 2,000 pound-feet!
Of course that number isn't correct, as no car on the road produces that much torque. Even a Bugatti Veyron produces "only" 1,000 lb-ft, give or take. Clearly something's amiss here, but the problem the dyno had in reading the Tesla's torque apparently doesn't come down to its electric powertrain. (Nor does it have anything to do with the northerly latitude or the interference of polar winds.) It comes down to the shiny, ten-spoke alloys.
Apparently this type of dyno measures torque by running horsepower and wheel revolutions through an algorithm. It measures horsepower at the wheel (which, at 436 hp, wasn't far off of Tesla's own rating of 416 hp) and uses a stationary optical sensor interfacing with a reflector on the wheel. Every time the reflector passes the sensor, it counts one revolution. But since the Model S has shiny ten-spoke wheels (and we presume because it was taken outdoors under bright sunlight), the sensor thought that each passing spoke was one revolution of the wheel... when it was, in fact, ten times too much.