this post was submitted on 16 Aug 2024
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[Dormant] Electric Vehicles
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What are these calculations, like expected cost of electricity vs. cost of fuel and so on, imagining a maximum lifetime of 10 years?
Yes. There are soo many variables that you need a spreadsheet to figure it out. There is no easy way to say that EV is cheaper than ICE unless you know the purchase price, your expected mileage, cost of fuel, depreciation, potential subsidiaries, financing, servicing, repairs, etc. for the time of owning the car. It might not be.
Nobody can know all the variables in advance, so what I did was to calculate the worst possible scenario for the EV against my somewhat more known cost of continuing buying beater cars (which was the cheapest option for me in comparison to buying new ICE cars also, and also on my budget because I knew how much I spent on it previously).
The EVs worst scenario was way ahead of the best scenario ICE, but it was very mileage dependant. I commute 50 km (30 miles) every day and then some. I get my electricity tax free because of government subsidiary and my financing was cheaper because it's an EV (less than 1% interest), but this is obviously very local. ALL variables must be known to some degree, but it's never as simple as comparing the purchase price. While that's the most easily known factor it doesn't actually matter much after 10 years, because all the variables make up for it long before.
Also, charging at home vs. subscribing to a charging service and getting the right electricity subscription are completely different calculations also depending on location, usage and availability. I live in Denmark (Europe) and charging at home with variable price and feedback subsidized commission is absolutely the cheapest option unless you're a traveling salesman putting thousands of kilometres every week.
By doing worst case against a known case I am always pleasantly surprised when we have negative electricity prices, because the actual calculation would break down at that point. My actual costs are continuously better than my expectations, so if my expectations are good enough, well then my actual situation is a lot better.
I can only urge people to gather their data, figure it out and have a look. There will be cases where an ICE car is cheaper, but in my situation, I can't find it at all.
That's really useful to consider, thank you for going into some more details on that.