Talk:Tesla Motors

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[edit] Restructuring

I tried to restructure this by putting in some sections. Things I wish were a little better:

  • The section on the roadster may be getting a little too big, since there's already a page on it. But I think the specs on the car go towards explaining the company's business model.
  • English vs American usage is a bit of a problem here since we have Lotus, an English company, and Tesla, an American company. I'm staying with American style as per the original version and since this is about an American car. I tried to avoid constructions that sound odd on the other continent but I'm not sure I succeeded.

--Steve Pucci | talk 15:26, 3 September 2006 (UTC)

[edit] Solar mileage offset calculation

"Tesla plans to offer home roof mounted solar-photovoltaic systems through Solar City that will offset power used by the home charger, allowing 50 miles (80 kilometers) of travel without burdening the power grid, and thus making the package "energy positive" for a driver whose average daily mileage is less than that."

It's unclear to this reader how the author arrives at his calculation of 50 miles per charge. It all depends on the consumption of energy at home and the size of the solar panel system...the vehicle can be entirely supplied by solar. Also, charging during nighttime off peak hours does not present a burden to the electrical grid. This evens out the power consumption by making use of excess generation at night. —The preceding unsigned comment was added by 76.168.71.228 (talk • contribs) 01:06, Feb 6, 2007 (UTC).

I think the idea is that the solar system provided through Solar City will be sized to provide, on average, enough energy in one day to power the Tesla Roadster for 50 miles (assuming the 200 Wh/mile figure quoted at Tesla Roadster#Performance, that would be 10 kWh/day). It would thus offset the energy pulled out of the home system by the roadster, by putting that much energy back in, assuming you don't go over the nominal 50 miles in an average day of driving. As you point out, staying under this constraint would make the system net positive to the owner in terms of dollars, and net positive to the electrical grid's "burden", because energy is typically cheaper when being taken out than when it is replaced. --Steve Pucci | talk 14:45, 7 February 2007 (UTC)