Elon Musk has published a thorough blog countering some of the results in a recently published, controversial Tesla Model S review in The New York Times. The review has received plenty of attention, and this week Musk prepared his reply -- complete with charts to illustrate his points -- on Tesla's site.
The controversy began when Tesla approached Broder to evaluate a Model S (with an 85 kilowatt-hour battery that provides 265 miles of EPA-rated range) and two new charging stations installed in Newark, Delaware and in Milford, Connecticut. These stations are 200 miles apart and include the company’s new Supercharger, which can recharge batteries at a much faster rate than a typical charging unit (Tesla says the Supercharger can provide up to 150-160 miles of range in just 30 minutes).
In fact, in a February 12 update, Broder says the test was intended to evaluate the Supercharger network on the East Coast, not the Model S, explaining why he didn’t plug in the car overnight in Connecticut.
“This evaluation was intended to demonstrate its practicality as a ‘normal use,’ no-compromise car, as Tesla markets it. Now that Tesla is striving to be a mass-market automaker, it cannot realistically expect all 20,000 buyers a year (the Model S sales goal) to be electric-car acolytes who will plug in at every Walmart stop,” Broder wrote. Broders Tesla Model S speed log 300x187 image
Broder’s trip began at the Delaware station with 242 miles of range (he was unaware of a “max charge” feature that would’ve topped the battery off at 265 miles). He claims to have experienced fluctuations in the battery’s claimed range, which may have
[caption id="attachment_205373" align="alignright" width="240"] Broder's Battery Charge Data Log[/caption]
been affected by the colder temperatures. Still, Broder claims to have properly charged the battery, drove at reasonable speeds, and even reduced the cabin temperature, all in an attempt to increase range. In the end, however, Broder says he ran out of charge before reaching Connecticut, and the Model S was consequently towed to the charging station.
Since then, Tesla has compared Broder’s account to the data log from the Model S test car he drove. Earlier this week, Musk published an extensive blog with that data, which points out a number of claimed discrepancies in the highway speeds at which Broder said he was traveling, charging times, as well as possible errors in his article’s math. Musk also suggested the evaluation was a lost battle for Tesla in the first place, pointing to a March 2012 article by Broder in which he says “the state of the electric car is dismal.”
Source: NY Times, Tesla Motors