Go4it
No layin' up!
How many miles do you have on it? We have almost 80,000 miles on our 2015 85D. I only pay 4.6 cents per kilowatt hour for electricity which is a special geothermal rate. That works out to about 1.66 cents per mile or the equivalent of 33 cents per gallon.
I only have about 3,200 on my Dual Motor Model 3...it is absolutely the best car/driver experience I have ever had.
I plug in over night while I sleep, BGE gives us special EV rates so it is probably pretty close to what you are paying.