General > General Technical Chat
Confused about PHEV, Hybrids, etc...
bdunham7:
--- Quote from: tszaboo on August 01, 2022, 10:24:04 am ---Considering an electric car uses 22KWh for 100 KM, this is 8.8EUR in electricity.
--- End quote ---
This is the next issue--some manufacturers have emphasized efficiency to increase range, others just bolt on ever-larger batteries to their luxobarges. An efficient BEV should be <15kWh/100km and I don't mean less-than-car alternatives.
Cerebus:
--- Quote from: Miyuki on August 01, 2022, 12:13:07 pm ---Cycling is a good option for people living in dense areas with flat terrain and suitable weather. So it is naturally limited to just a small percentage of big cities.
--- End quote ---
They don't have to be flat. Brighton on the South Coast of England has huge numbers of active cyclists, 22% of the city's residents regularly cycle, and it's very far from flat, the whole city is built on a slope that goes from the South Downs behind it to the sea in front of it. The main north-south routes from the seafront have a 5% gradient. In fact it has one of the steepest city roads I've ever encountered with a 20% gradient and that used to be one of my favourite short cuts when cycling between Hove and Brighton when I lived there. (It also has one of the best Fish and Chip shops in Brighton, possibly the whole South Coast, at the top of it.)
tom66:
--- Quote from: bdunham7 on August 01, 2022, 02:25:25 pm ---
--- Quote from: tszaboo on August 01, 2022, 10:24:04 am ---Considering an electric car uses 22KWh for 100 KM, this is 8.8EUR in electricity.
--- End quote ---
This is the next issue--some manufacturers have emphasized efficiency to increase range, others just bolt on ever-larger batteries to their luxobarges. An efficient BEV should be <15kWh/100km and I don't mean less-than-car alternatives.
--- End quote ---
See, for instance, the Hummer EV: 200kWh battery giving a 400 mile range. Meanwhile a Model S with the 100kWh battery nearly hits that (and the 'S' is a big car!)
Yes - it's good that the Hummer EV is fully electric - no it's not good that it's the size of a small house. We need to rethink transportation if this is considered a normal sized vehicle for a family.
I hope 'if' autonomous vehicles become more common it will be possible to packetise transport, where you can be picked up in a 1-2 person vehicle if you are commuting but rent a 4-5 person vehicle for longer trips.
Long way off from that future so for now we need to make smaller vehicles more popular whilst improving access to larger ones when needed (car/van sharing, better delivery...) It always amuses me the sight of someone buying something at IKEA with their giant SUV - and still not being able to fit it all in, usually having something poking out of a window.
nctnico:
--- Quote from: bdunham7 on August 01, 2022, 02:25:25 pm ---
--- Quote from: tszaboo on August 01, 2022, 10:24:04 am ---Considering an electric car uses 22KWh for 100 KM, this is 8.8EUR in electricity.
--- End quote ---
This is the next issue--some manufacturers have emphasized efficiency to increase range, others just bolt on ever-larger batteries to their luxobarges. An efficient BEV should be <15kWh/100km and I don't mean less-than-car alternatives.
--- End quote ---
I have wrote it before: if you look at very efficient BEVs (like the new Mercedes EQXX concept) you'll see the same shape as people use to modify ICE cars to become a lot more efficient.
A problem I do see is that cars become less practical. The booth space shrinks and the space people have in the rear seats get smaller due to the roof becoming lower. At some point you can't optimise further without sacrificing useability.
--- Quote from: tom66 on August 01, 2022, 03:08:14 pm ---It always amuses me the sight of someone buying something at IKEA with their giant SUV - and still not being able to fit it all in, usually having something poking out of a window.
--- End quote ---
One of the advantages of a bicycle is that you can easely transport very long items like tubes and lengths of wood. IIRC my record is 5 meters or so.
I don't get the appeal of a SUV either. Last year we had to rent a car which turned out to be some kind of SUV model (Renault 2008) but we could barely fit our luggage in it.
--- Quote from: Miyuki on August 01, 2022, 12:13:07 pm ---Cycling is a good option for people living in dense areas with flat terrain and suitable weather. So it is naturally limited to just a small percentage of big cities.
--- End quote ---
Not really. With suitable clothing you can cycle all year round while being warm and comfy even when it is cold and/or raining. In the end it is about changing your habbits. With electric bikes being commonly available, flat terrain isn't necessary.
emece67:
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