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From: David Brown <david.brown@hesbynett.no>
Newsgroups: sci.electronics.design
Subject: Re: The Physics Behind the Spanish Blackout
Date: Thu, 12 Jun 2025 15:45:15 +0200
Organization: A noiseless patient Spider
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On 12/06/2025 14:21, Liz Tuddenham wrote:
> Bill Sloman <bill.sloman@ieee.org> wrote:
> 
> [...].
>>
>> Around here it is well known that the battery is a profitable option, if
>> you have the capital to pay for it.
> 
> [...]
> 
>> Electricity is cheaper than petrol. Fuel cost isn't a big part of the
>> expense of owning a car - depreciation is main expense.
> 
> How does the depreciation of an electric car compare with (e.g.) a
> diesel one?  What is the battery life and does it have 'negative value'
> when it comes to disposal?
> 

On average, the resale value of electric cars drops faster than for 
petrol and diesel cars.  But make and reputation can have a bigger 
effect - a petrol Chrysler will deprecate much faster than an electric 
Toyota, and there is significant variety within particular brands.  I 
would also expect variation between countries.

In the early days of electric cars, there was a lot of concern about 
battery lifetime - but it seems that those fears were overly 
pessimistic, and newer cars have better batteries.  You can expect 
ranges to drop somewhat as an EV gets older, but usually not dramatically.

The scrap value of an old EV battery is going to vary hugely from 
country to country according to regulations, subsidies, etc.  It is 
never going to have negative value - that would encourage dumping.