Fuel Economy will answer your question as to how much electricity is consumed per mile.
Nissan LEAF (62kWh battery) consumes 31 kWh/100 miles.
2020 Tesla Model 3 Standard Range Plus consumes 24 kWh/100 miles.
At $0.10/kWh the LEAF costs $0.031/mile, Model 3 costs $0.023/mile. I disagree with the EPA's dumbing down of an MPGe based on kWh of gasoline. I say "efficiency" doesn't matter, only cost matters. The Almighty Dollar is the only accurate measure of resource consumption which also includes availability and scarcity. So at $3.00/gallon for gasoline the LEAF gets 96 MPG$ and Model 3 gets 125 MPG$. Or at $2.00/gallon it is 64 and 83 MPG$ respectively.
EPA ratings are measured at the power grid and include all charging and storage losses. Unlike gasoline MPG ratings the EV consumption ratings are pretty accurate.
The typical 240V 40A circuit for 32A to charge a LEAF delivers 7kW for about 22 miles of range added per hour of slow charging at home. So what? Plug in every night and it is full by morning.
For the same price a Tesla Wall Connector on a 60A circuit will deliver 48A and 11.5kW for nearly 50 miles per hour of charging. On a Tesla Supercharger it can easily hit 500 miles per hour of charging as most are capable of 120kW rates and the newer V3 Superchargers have 250kW per vehicle. This isn't empty promise but actual fact available at 727 sites in the USA and 125 more under construction.
As for the cost of the vehicle, "deals are to be had." Nissan subsidizes the cost of leases in regressive states such as California so as to get credits allowing them to sell ICE vehicles. The off-lease market is flooded so 2 year old cars can be had in the $10-15k range.
An off-lease LEAF is a pretty good value proposition. But it is nothing near as nice as a Tesla Model 3.
Nissan LEAF can not use Tesla Superchargers. For distance travel one must rely on lesser networks including Electrify America which is rightly ridiculed for being built with VW diesel fines. Yet charges $0.21/minute for 75kW or less. LEAF is limited to 50kW so net cost is about $0.25/kWh.
$0.25/kWh and $2.50/gallon is about 32 MPG$ in a LEAF using Electrify America. Not a good value proposition for daily use but about par with gasoline for longer trips. Its just that one has to stop for about 45 minutes every 125 miles.
JK, it does seem a great fit for your local needs.
