Pulling the Tesla Train

Pulling the Tesla Train

Pulling the Tesla Train

JULY 23, 2024

I love driving across the country. I hate stopping and I hate wasting time and energy. What if I could watch TV while driving? What if I could connect via software to other Tesla drivers hauling ass down I-10 going to Disneyworld? Could we extend our range and reduce stop?

So I had AI spend some time thinking about this. Turns out it isn't a horrible idea. The software is there to do it. And with the Tesla model names being S, 3, X, Y, it's about time these models pulled a train.

Here are the product details for the Tesla Train.

Tesla is pioneering the future of highway travel with its Tesla Train concept, where five Tesla vehicles autonomously link to form a convoy. This arrangement significantly reduces wind resistance, enhancing energy efficiency. The lead vehicle earns Supercharger credits as a reward, while the trailing cars enjoy unlocked video entertainment, allowing for relaxed viewing during travel.

The Tesla Train utilizes the platooning technique, where vehicles closely follow each other at highway speeds to minimize air resistance, bringing multiple benefits:

  • Decreased Aerodynamic Drag: The lead vehicle bears the initial wind resistance, significantly reducing drag for the following vehicles. This formation helps conserve energy, reducing overall consumption.
  • Energy and Cost Efficiency: The streamlined setup decreases power use, which increases range and reduces the need for frequent charging, especially beneficial on lengthy trips.
  • Incentives for the Leader: The leader of the Tesla Train is compensated with Supercharger credits for taking the initial wind load.
  • Entertainment for Followers: Following vehicles gain access to enhanced entertainment options, improving passenger experience on long journeys.

Consider a scenario where five Teslas form a train for a 240-mile journey:

Standard Energy Consumption: A typical Tesla might consume about 300 Wh per mile.

Energy Consumption with Train Formation: Drafting reduces consumption by 10% for the lead car and 25% for the following cars.

Example Calculations:

Lead Car:

  • Regular consumption: 300 Wh/mile * 240 miles = 72,000 Wh
  • With train: 64,800 Wh (10% reduction)
  • Energy saved: 7,200 Wh
  • Cost Savings: 7.2 kWh * $0.38 = $2.74

Following Cars:

  • Regular consumption: 300 Wh/mile * 240 miles = 72,000 Wh
  • With train: 54,000 Wh per car (25% reduction)
  • Energy saved per car: 18,000 Wh
  • Each Following Car Savings: 18 kWh * $0.38 = $6.84

Total and Individual Cost Savings (at $0.38 per kWh):

  • Lead car: $2.74
  • Four following cars: $6.84 * 4 = $27.36
  • Combined total: $30.10

While the individual cost savings for the trip highlight modest gains, the cumulative benefits over regular travel are notable. Beyond personal savings, the Tesla Train supports broader goals of sustainability and efficient energy use.

The Tesla Train concept isn't just an innovative travel solution; it's a transformative approach to efficient, enjoyable, and environmentally friendly highway travel. As technology evolves, it could redefine vehicle interactions and efficiency on highways.

Over a billion dollars could be saved a year not to mention the reduced time charge savings and having the time pass more quickly for the people in the train since they will be doing what they'd do in their living room.

Driving from Florida to California on IH-10

Miles Driven: 2,460 miles

Energy Consumption and Savings:

  • Regular consumption: 300 Wh/mile * 2,460 miles = 738,000 Wh
  • With train (Average Car): 610,200 Wh (17.3% reduction due to load sharing)
  • Energy saved (Average Car): 127,800 Wh
  • Total energy saved (5 cars): 127,800 Wh * 5 = 639,000 Wh

Travel Time: Assuming an average speed of 70 mph

  • Total driving hours: 2,460 miles / 70 mph = 35.14 hours
  • Total charging time: 7 charges * 35 minutes = 245 minutes (4.08 hours)
  • Total travel time: 35.14 hours + 4.08 hours = 39.22 hours

Number of Charges Required: Based on 340 miles per charge for a Tesla Model 3, charging from 10% to 90%

  • Lead Car: 2,460 miles / 306 miles per charge = 8.04 charges
  • Following Cars: Extended range by 25%, so 2,460 miles / 425 miles per charge = 5.79 charges
  • Average number of charges per car: (8.04 + 5.79) / 2 = 6.91 charges

Cost of Energy and Savings: Assuming $0.38 per kWh

  • Cost without train (Per Car): 738 kWh * $0.38 = $280.44
  • Cost with train (Per Car): 610.2 kWh * $0.38 = $231.88
  • Cost savings (Per Car): $280.44 - $231.88 = $48.56
  • Total cost savings (5 cars): $48.56 * 5 = $242.80

The really exciting thing is that out of the 40 hours it will take to drive across the country, each leader will only have to pay attention and "drive" for 8 hours. The rest of the time is relaxation, sleep and TV time. You will be safe. There will still be a human at the wheel (but maybe 4 cars ahead of you in the train) and you will save money if you just decided to drive it yourself.

BTW, Time and Cost to Drive a Semi:

  • Driving Time: Approximately 4.5 to 5 days (11 hours of driving per day with mandatory breaks)
  • Fuel Cost: Around $1,724 (2,800 miles at 6.5 mpg with diesel at $4 per gallon)
  • Total Trip Time: 4.5 to 5 days including driving, breaks, and mandatory rest periods