In a lengthy and detailed post in the r/TeslaLounge subreddit, a Redditor broke down the long-term savings achieved with their Tesla Model 3 compared to a gas-powered vehicle.
In this case, the original poster looked at the cost difference between owning their 2009 Subaru Forester and their 2019 Model 3, both bought new.
"As someone who has meticulously tracked all of my spending on everything for nearly 20 years, I've been able to track all of my expenses for all of my vehicles," the OP said.
The savings with the Model 3 were significant, especially because the OP charged their vehicle at home most of the time rather than at public chargers.
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Accounting for everything that goes into owning a vehicle — monthly bills, fuel, maintenance, insurance, washing, registration — the OP stated that the Forester cost them $1.13 per mile to own between 2009 and 2014, with over 15% of expenses going toward gas.
During the first five years of ownership, the Model 3 cost $1.14 per mile to own, but with a couple of important caveats. The OP accounted for all the same things as with the Forester, but they admitted that they also spent a lot more on extras for the Model 3. Taking inflation into account, the savings were significantly in favor of the EV.
On top of that, nearly half of the charging was done at Supercharger stations while on road trips. However, charging at home is much cheaper, especially if you have solar panels, as the OP does. They said charging at home with solar panels costs them only two cents per mile.
As the OP illustrated, pairing a home charger with solar panels enhances the savings that come with owning an EV. While Qmerit is a great place to start for a Level 2 charger installation, TCD's Solar Explorer is a great option for homeowners considering solar panels.
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The OP concluded that while fuel accounted for over 15% of overall costs during the first five years of owning the Forester, fuel only accounted for about 3% of overall costs for the Model 3.
While they will incur some expenses with their Tesla, they won't have to spend money on "any oil changes, emissions inspections, timing belts, spark plugs, radiator service, etc."
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