Random EV thoughts.....

MJohnston

ELM327 wrote: »

However even in F1 with 50% thermal efficiency, still havent figured a way to remove the noise.

They did, it's called Formula E

People who enjoy the sound of an exhaust pipe roaring, will eventually be lumped into the same category as steam train enthusiasts!

Silent Running

Deleted User wrote: »

People who enjoy the sound of an exhaust pipe roaring, will eventually be lumped into the same category as steam train enthusiasts!

Fine by me.

ELM327

Deleted User wrote: »

People who enjoy the sound of an exhaust pipe roaring, will eventually be lumped into the same category as steam train enthusiasts!

I'm also one of those.

MJohnston wrote: »

They did, it's called Formula E

There's still noise t here, it's just higher pitched.

the_amazing_raisin

How's about we all agree that one of the advantages of an EV is that you can fit a noise kit to make it sound like a V8, and turn it off when you don't want to hear it?

the_amazing_raisin

Anyone wanna buy a battery company? Looks like VW might be spinning their battery division off into a seperate company

https://www.electrive.com/2021/06/01/volkswagen-considers-an-ipo-for-their-battery-division/

I'm tempted to send a link to Adverts.ie to Herbert Deiss and recommend he sells shares there

I assume if VW goes down this route then they'll effectively own the majority stake and make the decisions, other shares would just be for public trading

I guess there's some tax/legal/company structure logic to this that I don't pretend to understand or care about

There's one interesting tidbit about VW's truck division Traton (MAN/Scania) is planning to build 100% battery powered trucks for long distance haulage.

Apparently VW's 6 future battery plants won't have the capacity to supply this sector, so VW are looking to buy in batteries from other sources

cannco253

PodPoint at Hatfield Station

https://youtu.be/vvv0YYDyvgM

A friend of mine used this place the other day. Video isn't the best, but seeing 27 chargers in a row is impressive and one way of dealing with EVs. What's the biggest hub here for people getting a train into work - 2 chargers?

the_amazing_raisin

cannco253 wrote: »

PodPoint at Hatfield Station

https://youtu.be/vvv0YYDyvgM

A friend of mine used this place the other day. Video isn't the best, but seeing 27 chargers in a row is impressive and one way of dealing with EVs. What's the biggest hub here for people getting a train into work - 2 chargers?

I'm guessing 2 chargers = 1 charging post wth 2 AC sockets?

I think Heuston has 2 charging posts, so can charge an eye watering 4 cars :rolleyes:

I think that makes it the biggest ESB hub until Mayfield opens

Also, I can't help but wonder at the logic of installing a bunch of AC chargers at the train station which is generally the end point of most commutes, rather than the starting point

unkel

the_amazing_raisin wrote: »

Also, I can't help but wonder at the logic of installing a bunch of AC chargers at the train station which is generally the end point of most commutes, rather than the starting point

And have you been there? The charge points are a stiff walk away from the train station itself. In the opposite direction of the city centre.

DrPhilG

How come kWh/100km seems to be the Irish default?

UK drivers seem to always use miles/kWh so surely km/kWh is an easier method?

unkel

We are in the EU. We use SI units and so l / 100km for fossil fuels in the past, now we use kWh / 100km for EVs

The UK do their own old imperial thing. Previously miles per gallon, now miles per kWh

liamog

DrPhilG wrote: »

How come kWh/100km seems to be the Irish default?

UK drivers seem to always use miles/kWh so surely km/kWh is an easier method?

It depends what question you are trying to answer, do you want to know how far you can go on for a given amount of energy, or how much energy you need to go a given distance.

Most of the time when I'm going on a journey the destination and route are the known quantities, in which case energy use per km is the better metric (we then scale it to 100km to make the numbers friendlier).

As you start to get to large units mpg starts to become unintuitive, if I gave an average person the choice of upgrading a vehicle from 30mpg to 36mpg (using imperial MPG) or one from 60mpg to 90mpg which do you think would save you the most money on a journey from Dublin to Cork?
The answer is that it's the same, when you express the efficiency in l/100km its more obvious, 9.4l/100km to 7.8l/100km vs 4.7l/100km to 3.1l/100km, either way you've reduced your fuel usage by 1.6l/100km

graememk

liamog wrote: »

As you start to get to large units mpg starts to become unintuitive, if I gave an average person the choice of upgrading a vehicle from 30mpg to 36mpg (using imperial MPG) or one from 60mpg to 90mpg which do you think would save you the most money on a journey from Dublin to Cork?

Someones been watching engineering explained

ELM327

DrPhilG wrote: »

How come kWh/100km seems to be the Irish default?

UK drivers seem to always use miles/kWh so surely km/kWh is an easier method?

I use wh/km as that's what's in Tesla.
I'd prefer miles per kwh

the_amazing_raisin

Personally I find kWh/100km quite easy. since the battery capacity is in kWh already I can guess the range based on the consumption

So, without using a calculator, if I'm getting 16.1kWh/100km, then 77/16 is something like 4.75
4.75 * 100 give 475km of range

Wh/km I'd need to divide 77,000 by 160 which is more than my brain can handle

And I don't know what miles are anyway :P

irishgrover

DrPhilG wrote: »

How come kWh/100km seems to be the Irish default?

UK drivers seem to always use miles/kWh so surely km/kWh is an easier method?

I'm a km/kWh person in my soul. With the Ioniq (import) I was m/kWh. For me it was the easiest way of seeing how much range I had left in the battery, which is pretty much the only reason I ever care about efficiency.

the_amazing_raisin

irishgrover wrote: »

I'm a km/kWh person in my soul. With the Ioniq (import) I was m/kWh. For me it was the easiest way of seeing how much range I had left in the battery, which is pretty much the only reason I ever care about efficiency.

I read that as metres per kWh, it'd be pretty shocking if you were only getting 4 metres per kWh :eek:

the_amazing_raisin

Dublin Bus going zero emission by 2050

https://www.rte.ie/news/dublin/2021/0603/1225756-dublin-bus/

Utterly pathetic :mad:

So you prefer they not bother? Half a ciabatta is more than none

Black_Knight

[Deleted User] wrote: »

So you prefer they not bother? Half a ciabatta is more than none

2050 will be 2060 will be 2070. So far in the future they can do absolutely nothing about it today and still hit that target.

cannco253

reminded me of this video, shows you what's possible, not that it could or would ever happen here.

The City with 16,000 Electric Buses & 22,000 Electric Taxis
https://youtu.be/0P7fTPLSMeI

the_amazing_raisin

[Deleted User] wrote: »

So you prefer they not bother? Half a ciabatta is more than none

I wouldn't call this bothering, I call this kicking the can down the road until all the current management are retired

unkel

the_amazing_raisin wrote: »

Dublin Bus going zero emission by 2050

https://www.rte.ie/news/dublin/2021/0603/1225756-dublin-bus/

Utterly pathetic :mad:

That's beyond retarded. Only in Ireland.

silver_sky

the_amazing_raisin wrote: »

Dublin Bus going zero emission by 2050

https://www.rte.ie/news/dublin/2021/0603/1225756-dublin-bus/

Utterly pathetic :mad:

There'll be a need to replace vehicles in the existing fleet before then at least once if not more times. They're not buying diesels any more... unless they're just planning to keep buying hybrids until forced not to. Crazy stuff.

NIMAN

Amazing the difference the weather has on range of an ev. Well, my ev anyway.

Nice warm weather, no wind, dry roads. Tonight I clocked my 2014 Leaf. I drove 18.4km and it used 12% of my battery.

In the winter, I'd say for 12% of my battery on wet roads in the wind, I would have been lucky to have got 12km.

Round Cable

unkel wrote: »

That's beyond retarded. Only in Ireland.

I'm pretty sure that the NTA buy the buses and allows their use by the individual transport companies. So Dublin Bus likely have zero influence on what fuel type that any of their buses actually use now or into the future.

unkel

silver_sky wrote: »

They're not buying diesels any more...

Yes they are still buying diesels. What else do you think they're buying. Diesels. They might have a tiny battery, but they're still puffing out cancerous emissions near people.

There's no justification to have anything with a diesel engine in it in urban areas by 2030

silver_sky

unkel wrote: »

Yes they are still buying diesels. What else do you think they're buying. Diesels. They might have a tiny battery, but they're still puffing out cancerous emissions near people.

There's no justification to have anything with a diesel engine in it in urban areas by 2030

I meant pure diesel but yes you're right, the hybrids are still diesel. My point was that they're going to try get away with the hybrids for as long as they can. Sure NTA already redid the branding to include a feckin leaf! greenwashing...

the_amazing_raisin

silver_sky wrote: »

I meant pure diesel but yes you're right, the hybrids are still diesel. My point was that they're going to try get away with the hybrids for as long as they can. Sure NTA already redid the branding to include a feckin leaf! greenwashing...

The worst part is that there are plenty of electric buses available now

In other sectors like long range haulage there literally isn't an electric option in the market yet, so they have no choice but to buy diesel

But electric city buses have been around for years, Dublin bus could order 300 of them tomorrow and they'd probably be delivered before the end of the year

Black_Knight

the_amazing_raisin wrote: »

The worst part is that there are plenty of electric buses available now

In other sectors like long range haulage there literally isn't an electric option in the market yet, so they have no choice but to buy diesel

But electric city buses have been around for years, Dublin bus could order 300 of them tomorrow and they'd probably be delivered before the end of the year

Economically that'd be a bit of a waste, but as buses die out they should be replaced with electrics. What's the oldest DB bus in operation these days? 10 years old maybe? As I say, 2050 is such an easy target to hit they could literally do nothing about it for 10-15 years and still be fully electric by 2050 without breaking a sweat.