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“Battery EV” vs “Hydrogen Fuel cell EV”

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tom66:

--- Quote from: nctnico on November 16, 2021, 06:43:12 pm ---But those aren't in front of your home  :palm: On top of that such commercial parking spaces devaluate at a much slower pace (more likely in the order of 20 to 30 years) with revenue coming from many cars parked in that space for a short period of time.

--- End quote ---

Great.  Charge 5 euro-cents per kWh above the wholesale cost of electricity and the charger will be paid for after a few years, if EVs are in abundance the cost of maintenance for the charger really won't be significant.

Assuming 33% utilisation (~8 hours in use per day) a 7kW point dispenses 56kWh of electricity per day.  At 5 cents/kWh margin it makes 1,000 EUR/year. 

That's more than enough to pay for the cost of maintenance of the charging point, and amortises its install cost after a few years.

Did you know, petrol stations would be really unprofitable if only one person visited them every day?!

ogden:

--- Quote from: james_s on November 16, 2021, 06:53:45 pm ---It's a Volvo 740, 2.3L SOHC turbocharged 4 cylinder gasoline engine. It's over 30 years old so not really "modern" I guess but it's not ancient either.

--- End quote ---
Oh, I see :) Those have good reliability records indeed. I asked because modern engines built for strict emission rules are burning oil straight out of the factory - because high better fuel efficiency means lower engine friction that has it's price. In short - modern, "efficient" small engines needs piston ring overhaul much sooner than old gas guzzlers.


--- Quote ---We also have a slightly more modern 2002 Toyota Prius, it only has 140k on it but shows no signs of engine wear.

--- End quote ---
It's because oldskool ICE engine runs as soon as you are moving, hybrid - not always. Hybrid engines are detuned (Atkinson cycle), they run engine preferably at max efficiency mode which means mediocre RPM unless you floor it, and what's more important - "engine hours" versus "movement hours" is somewhere around 50..80% obviously depending on driving style and city/highway cycles. Hint: don't buy hybrid for long range hi-speed commute, its is waste of money. So, your 140k mile hybrid "city cycle" engine can have wear similar to engine of 70k mile generic ICE car.

james_s:

--- Quote from: Miyuki on November 16, 2021, 07:12:30 pm ---Today is common to have a 1.0 turbo with an even higher power, in the car this size
Plus oil change interval is set mostly for 40,000km (25,000 miles) to lower maintenance, it is proven to damage engine, but fleet customers want it as they don't keep cars that long and for example, in Europe, it is a big part of the market, a big portion of people here have the car as an employment benefit

--- End quote ---

That's crazy, I change my oil pretty religiously at 5,000 miles and have always run full synthetic in my turbo cars. Even at today's prices oil is cheap when compared to the price of an engine rebuild or new car.

james_s:

--- Quote from: ogden on November 16, 2021, 07:52:36 pm ---It's because oldskool ICE engine runs as soon as you are moving, hybrid - not always. Hybrid engines are detuned (Atkinson cycle), they run engine preferably at max efficiency mode which means mediocre RPM unless you floor it, and what's more important - "engine hours" versus "movement hours" is somewhere around 50..80% obviously depending on driving style and city/highway cycles. Hint: don't buy hybrid for long range hi-speed commute, its is waste of money. So, your 140k mile hybrid "city cycle" engine can have wear similar to engine of 70k mile generic ICE car.

--- End quote ---

It does 40-45 mpg cruising on the highway so it's still quite good compared to other cars of the era. I don't remember what kind of mileage it gets around town but I think it's actually similar. It's the most boring car I can ever recall driving, but it has been amazingly reliable as a transportation appliance, and it was not very expensive. I think she paid $5k for it after the virtually identical 2001 model she had got rear ended. We recently had the original 19 year old battery replaced, that cost about $2k but it drives like new now.

Miyuki:

--- Quote from: james_s on November 17, 2021, 04:46:36 am ---
--- Quote from: Miyuki on November 16, 2021, 07:12:30 pm ---Today is common to have a 1.0 turbo with an even higher power, in the car this size
Plus oil change interval is set mostly for 40,000km (25,000 miles) to lower maintenance, it is proven to damage engine, but fleet customers want it as they don't keep cars that long and for example, in Europe, it is a big part of the market, a big portion of people here have the car as an employment benefit

--- End quote ---

That's crazy, I change my oil pretty religiously at 5,000 miles and have always run full synthetic in my turbo cars. Even at today's prices oil is cheap when compared to the price of an engine rebuild or new car.

--- End quote ---
It is the same as a "lifetime" transmission fluid
The life of those transmissions aren't long then  ::)

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