Good data

I got a lot of questions on that number from the end of my Ignite! talk.  As far as holmz is concerned, that number is close…  Let’s walk it through.

Let’s get our data straight:

• Vroom gets about 32 MPG;
• one gallon of gasoline comprises 1.3E8 joules; and
• its a 215 mile drive from Boston to NYC.

From that, if we use holmz’s calculator, then we can just run the formula “((215 [mi] / 32 [mpg]) * 1.3e8 [J/gal]) @ [kWh]” and the result is 242.6 kWh.

And now - to compare that against a 60 W power adapter for my MacBook.  If we go back to the calculator and evaluate “(last / 60 [W]) @ [day]” that gives me a result of 168.5 days. What’s a few days between friends?