Tesla has made it Possible to drive Cross-Country in an Electric Car

Posted by PITHOCRATES - February 1st, 2014

Week in Review

Tesla has installed charging stations across the country.  You can now drive from Los Angeles to New York City.  As long as you want to take the scenic route and are in no hurry (see Tesla’s 800-mile cross-country detour by Chris Isidore posted 1/30/2014 on CNN Money).

Tesla owners can now drive across the country using the company’s network of charging stations to power their batteries — as long as they don’t mind going about 800 miles out of their way…

Tesla says the route…is…3,400 miles long…

The superchargers provide enough juice in 30 minutes to take a Tesla about 170 miles. There are 32 stations on the route between downtown Los Angeles and New York City, and more than 40 others mostly up and down both coasts.

The Model S, which starts at about $69,000, needs to be charged every 244 to 306 miles, depending on the battery size.

Sounds good.  But for those of us comfortable with ease of traveling with gasoline will not experience that same ease driving from one charging station to another.  Let’s look at this by first looking at a full-size sedan powered by a gasoline-engine.  Like a Ford Taurus.  They can get about 29 miles per gallon on the highway and have an 18 gallon gas tank.  Crunching the numbers for that 3,400 mile trip it will take about 117 gallons of gasoline (3,400/29).  With an 18 gallon gas tank it will take 7 fueling stops to complete the trip (117/18).  Assuming 5 minutes to refuel and another 10 minutes for incidentals (pulling in, pulling out, paying at the pump, waiting for a fuel pump to become available, etc.) that’s 105 minutes (7 X 15).  Or 1.75 hours (105/60).  Adding just under 2 hours to the trip for fueling.

For 32 charging stations to cover that 3,400 miles means they are on average 106.25 miles apart.  So a half-hour quick charge will take you to the next charging station with 170 miles of charge available on your battery.  Assuming 30 minutes to charge and another 15 minutes for incidentals (pulling in, pulling out, waiting for another car to complete their 30 minute charge, etc.) that’s 1,440 minutes (32 X 45).  Or 24 hours (1,440/60).  Adding 24 hours to the trip for charging.  Or a full day.  Or 2 days if you only drive 12 hours a day.  Or 3 days if you only drive 8 hours a day.

Now imagine a world where everyone is driving electric cars.  And there are three cars ahead of you at the charging station waiting for a charge.  Adding an hour and half waiting time in addition to your 45 minute charging stop.  If it was like this at every charging station and you drove 12 hours a day that would add 6 days of traveling to that trip.  Whereas the odds are less likely that you will have to wait for 3 cars ahead of you at a gas station.  Because there are so many more gas stations to go to.

Driving cross-country in an electric car could add 6 days to a 4-day trip.  Making the electric car a novelty at best.  Unless your vacation is all about getting there.  And not about being there.  Where you drive there, turn around and return home.  Because you have no time to spend there due to the time it took to get there.  You could do that.  Or drive a gasoline-powered car.  And do more than just drive on your vacation.

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