EV Charging - Riddle?

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Was updating my spread sheet and came upon an internal discussion. Am I going crazy?

 

[ewoodrick]

If you paid $10, it cost you $10.

If you were referring to just the charging, it was free. Unless you had no other parking options, in which the charging would have been any delta in cost of parking solutions.

But overall, just drive the car and don't worry about the details!!!

 

[swaltner]

I also track all expenses on my vehicles, have for 20+ years. Personally, I would log this on my spreadsheet as follows:

• In all situations, I'd add the the estimated kWh added to the battery into my spreadsheet. I track the kWh consumed at home (at the EVSE, not the trip meter on the car because the trip meter doesn't account for all usage).
• If I would have paid for parking anyways even if I wasn't driving the EV (example: visiting a museum), I wouldn't record the cost as $0.00
• If I used that parking lot only because I was driving an EV (opportunity charging during the day, charging stop while on a road trip, etc...), I would put the full $10 in the spreadsheet.

These spreadsheets are really for our own entertainment, so do whatever you think is appropriate.